# Learn - research explainers Question-led articles that answer what people actually search, written from the published record and cited to the original journals and registries. ## [Peptide Quality & Verification](https://www.formlaboratories.com/learn/peptide-quality-verification) How research peptide material is tested, what a certificate of analysis actually records, and how a buyer checks that a vial matches its paperwork. Every article in this hub is about verification, not about use. - [Which peptide company is the most trusted?](https://www.formlaboratories.com/learn/peptide-quality-verification/which-peptide-company-is-the-most-trusted) - What regulator letters, batch tests and business records can show about peptide companies. Learn why company size cannot settle trust. - [How to read a certificate of analysis (COA)](https://www.formlaboratories.com/learn/peptide-quality-verification/how-to-read-a-certificate-of-analysis) - What a certificate of analysis shows: its fields, purpose and layout, how it differs from a safety data sheet, what purity and identity numbers prove, and where the paperwork stops. - [How to check a peptide certificate of analysis is genuine](https://www.formlaboratories.com/learn/peptide-quality-verification/how-to-check-a-peptide-coa-is-genuine) - A field-by-field checklist for a peptide certificate of analysis: match the batch, confirm the laboratory, read the test scope, and see what each check can and cannot show. - [How to check an Australian peptide supplier is legitimate](https://www.formlaboratories.com/learn/peptide-quality-verification/how-to-check-a-peptide-supplier) - Ten checks for an Australian research peptide supplier: business identity, contact details, batch documents, test scope, payment records, handling and regulatory warnings. - [What research grade actually means](https://www.formlaboratories.com/learn/peptide-quality-verification/what-research-grade-actually-means) - Research grade is a catalogue phrase, not a published standard. What named grades like ACS and USP are, and what For Research Use Only does not mean. - [What a batch or lot number lets a researcher verify](https://www.formlaboratories.com/learn/peptide-quality-verification/what-a-batch-or-lot-number-lets-a-researcher-verify) - A batch or lot number identifies one production run. What that code lets a researcher check, what it ties together, and where its verifying power stops. - [CJC-1295 with DAC vs without DAC: what is the difference?](https://www.formlaboratories.com/learn/peptide-quality-verification/cjc-1295-dac-vs-no-dac) - CJC-1295 with DAC and without DAC are two different peptides. Side-by-side sequence, half-life literature and registry numbers, and what modified GRF(1-29) means. - [Selank vs Semax: are they the same peptide?](https://www.formlaboratories.com/learn/peptide-quality-verification/selank-vs-semax) - Selank and Semax are two different seven-amino-acid peptides that share a Pro-Gly-Pro ending. A position-by-position sequence table, origins, what studies say about which is better, DSIP, and the limits of comparing studies. - [Is NAD+ a peptide?](https://www.formlaboratories.com/learn/peptide-quality-verification/is-nad-plus-a-peptide) - NAD+ is a coenzyme made of two nucleotides, not a peptide. What the PubChem, ChEBI and wwPDB records show about its structure. - [How mass spectrometry confirms peptide identity](https://www.formlaboratories.com/learn/peptide-quality-verification/how-mass-spectrometry-confirms-peptide-identity) - How mass spectrometry confirms peptide identity: what a matching mass shows, how fragmentation reads the sequence, and why identical masses call for a second test. - [How HPLC purity is measured for peptides](https://www.formlaboratories.com/learn/peptide-quality-verification/how-hplc-purity-is-measured-for-peptides) - How HPLC purity is measured for peptides: what a 99% figure means, how peak area becomes a percentage, and what the number cannot show about identity or content. - [Endotoxin, sterility and purity: three different tests](https://www.formlaboratories.com/learn/peptide-quality-verification/endotoxin-sterility-and-purity) - What an endotoxin test, a sterility test and a purity test each measure, and which of the three the 14 lab reports on file at Form Laboratories document. - [TB-500 vs thymosin beta-4: is TB-500 the same molecule?](https://www.formlaboratories.com/learn/peptide-quality-verification/tb-500-vs-thymosin-beta-4) - TB-500 and thymosin beta-4 are not the same molecule in the papers that define them: a full-length protein against a short acetylated fragment, compared side by side. - [What does a peptide cleavage predictor measure?](https://www.formlaboratories.com/learn/peptide-quality-verification/peptide-cleavage-prediction) - What peptide cleavage predictors estimate from an amino acid sequence, what cut-site scores mean, and why a computer prediction needs separate lab evidence. - [What is peptide mass fingerprinting, and what can it identify?](https://www.formlaboratories.com/learn/peptide-quality-verification/peptide-mass-and-fingerprinting) - Peptide mass, mass-to-charge ratio and mass fingerprinting explained: what a database match can identify, why sequence matters, and what purity needs. ## [Peptides in Perth: Research, Delivery and WA Law](https://www.formlaboratories.com/learn/peptides-perth) Form Laboratories is a Perth-based supplier of research-use-only peptides that dispatches Australia-wide after payment clears, as its shipping page states. Australian and [Western Australian law](/learn/peptides-perth/peptides-and-wa-law) still apply to each substance; a research-use-only label does not make supply lawful (TGA advisory, 13 April 2026). - [Peptides in Perth: 20 Questions, Answered](https://www.formlaboratories.com/learn/peptides-perth/peptides-perth-questions-answered) - Online-only Perth supplier answers 20 questions on dispatch, delivery, payment, batch reports and Australian regulation of research peptides. - [Ordering Peptides From Perth Instead of Importing](https://www.formlaboratories.com/learn/peptides-perth/why-order-peptides-from-perth-instead-of-importing) - TGA border assessment, labelling rules and Personal Importation Scheme limits, plus what a domestic Perth parcel changes and does not change. - [Peptide Delivery Times From Perth, State by State](https://www.formlaboratories.com/learn/peptides-perth/perth-peptide-delivery-times-by-state) - Delivery windows for research peptides dispatched from Perth, what starts the clock, and why a tracking link beats any published estimate. - [Research Peptides Across Western Australia](https://www.formlaboratories.com/learn/peptides-perth/peptides-across-western-australia) - Delivery from Perth to Bunbury, Geraldton, Albany, Kalgoorlie, Karratha and Broome, and what does not change anywhere in the state. - [Freeze-Dried Peptides and a Perth Summer: What Studies Report on Heat, Light and Water](https://www.formlaboratories.com/learn/peptides-perth/storing-peptides-in-perth-summer) - What published studies, WHO and ICH guidelines and FDA documents report about heat, light and water in freeze-dried peptides, set beside Perth's summer air temperatures. - [Are peptides legal in Western Australia and Perth?](https://www.formlaboratories.com/learn/peptides-perth/peptides-and-wa-law) - How the Poisons Standard reaches Western Australia through the Medicines and Poisons Act 2014, and what the TGA says a research-use label does not do. - [Retatrutide in Perth: Research Records and WA Status](https://www.formlaboratories.com/learn/peptides-perth/retatrutide-perth) - Read retatrutide's dated WA scheduling record, TGA notices and research sources, with clear limits on RTA batch paperwork and Perth dispatch. - [TB-500 in Perth: the Thymosin Beta-4 Fragment](https://www.formlaboratories.com/learn/peptides-perth/tb-500-perth) - TB-500 is a seven-amino-acid fragment of a forty-three-residue protein, not the protein itself. Its sequence, its literature, and what the TGA has said. - [BPC-157 in Perth: Scheduling, Research and Dispatch](https://www.formlaboratories.com/learn/peptides-perth/bpc-157-perth) - BPC-157 research identity, the 2024 scheduling decision, Australian legal status and Perth dispatch facts, with dated sources and evidence limits. - [CJC-1295 in Perth: No DAC, Ipamorelin and TGA Status](https://www.formlaboratories.com/learn/peptides-perth/cjc-1295-perth) - CJC-1295 in Perth: DAC and No DAC names, the separate ipamorelin identity, dated Australian schedule entries, research limits and dispatch records. - [MOTS-c in Perth: a Peptide Written in Mitochondrial DNA](https://www.formlaboratories.com/learn/peptides-perth/mots-c-perth) - MOTS-c is a sixteen-amino-acid peptide encoded in mitochondrial DNA. Its sequence, its 2015 identification, and its prohibited-in-sport listing. - [NAD+ in Perth: What It Is, and Why It Is Not a Peptide](https://www.formlaboratories.com/learn/peptides-perth/nad-plus-perth) - NAD+ is a dinucleotide coenzyme, not a peptide. Its chemistry, the NAD+ and NADH redox pair, and the limits of peptide-advisory example lists. - [How to Read a Peptide Trial on the ANZCTR](https://www.formlaboratories.com/learn/peptides-perth/perth-clinical-trials-on-anzctr) - What an ACTRN number is, what prospective registration means, and how to read an Australian trial registry record before relying on it. ## [Growth Hormone and Growth Hormone-Releasing Peptides](https://www.formlaboratories.com/learn/growth-hormone-peptides) Growth hormone is one molecule. The so-called "HGH peptides" are different molecules. They press other switches on cells, called receptors. They act one step before growth hormone, or alongside it. This hub explains what growth hormone is and how long it stays in the blood. It shows how the two main families of releasing peptides differ from it. It also says what Australian and sport records say, with every answer sourced and dated. - [Are growth hormone peptides legal in Australia? Poisons Standard, TGA and WADA records](https://www.formlaboratories.com/learn/growth-hormone-peptides/are-growth-hormone-releasing-peptides-legal-in-australia) - What the October 2026 Poisons Standard (F2026L01327), the TGA and the WADA 2026 list record about somatropin, CJC-1295, ipamorelin, GHRP-2, GHRP-6, sermorelin and tesamorelin, with the date each record was checked. Records only; this is not legal advice. - [GHRH analogues vs ghrelin-receptor peptides: two inputs to growth hormone release](https://www.formlaboratories.com/learn/growth-hormone-peptides/ghrh-analogues-vs-ghrelin-receptor-peptides) - GHRH analogues such as CJC-1295 and tesamorelin act on the GHRH receptor. Ghrelin-receptor peptides such as GHRP-6 and ipamorelin act on the ghrelin receptor. A comparison from papers, labels and the WADA 2026 list. - [HGH peptides vs HGH: are growth hormone-releasing peptides growth hormone?](https://www.formlaboratories.com/learn/growth-hormone-peptides/hgh-vs-growth-hormone-releasing-peptides) - Growth hormone (HGH, somatropin) and growth hormone-releasing peptides are different molecules on different receptors. A comparison from FDA labels, papers and the WADA 2026 list, with the limits of each record. - [What is the half-life of growth hormone? Minutes in a vein, hours under the skin](https://www.formlaboratories.com/learn/growth-hormone-peptides/somatropin-half-life) - The FDA labels give a half-life of 0.4 hours for intravenous Genotropin and 3.0 to 3.8 hours for somatropin given under the skin. The difference is slow absorption, not a second hormone. - [What is somatropin? Recombinant human growth hormone explained from the label](https://www.formlaboratories.com/learn/growth-hormone-peptides/what-is-somatropin) - What somatropin is: recombinant human growth hormone of 191 amino acids, the receptor it binds, how it leads to IGF-1, and what the FDA labels and the Australian register say about it. ## [ANP and the Natriuretic Peptides: How the Heart's Hormones Work](https://www.formlaboratories.com/learn/natriuretic-peptides) ANP (atrial natriuretic peptide) is a hormone your heart makes. It has two relatives, BNP and CNP, and together they are called the natriuretic peptides. These guides explain in plain words where each hormone comes from, which receptors it uses, how fast the body clears it, what the ASCEND-HF trial measured, and the three related medicines: carperitide, nesiritide and vosoritide. - [ANP half-life: why it lasts minutes and how the body clears it](https://www.formlaboratories.com/learn/natriuretic-peptides/anp-half-life-and-clearance) - ANP half-life as reported in the literature: about 3 minutes in one review and 2 to 4 minutes in another. How the clearance receptor NPR-C and the enzyme neprilysin remove natriuretic peptides. - [ANP vs BNP vs CNP: the three natriuretic peptides compared](https://www.formlaboratories.com/learn/natriuretic-peptides/anp-vs-bnp-vs-cnp) - ANP, BNP and CNP compared: where each natriuretic peptide is made, what releases it, which receptor each paper assigns, the cGMP step, and the clearance receptor NPR-C. - [What did the ASCEND-HF trial measure? Nesiritide in acute heart failure](https://www.formlaboratories.com/learn/natriuretic-peptides/ascend-hf-nesiritide-trial) - ASCEND-HF (NCT00475852) randomised 7,141 patients with acute heart failure to nesiritide or placebo. What the two co-primary endpoints were, the significance bar the dyspnoea result did not meet, and what the trial did not show. - [Carperitide, nesiritide and vosoritide: natriuretic peptide medicines and their status](https://www.formlaboratories.com/learn/natriuretic-peptides/carperitide-nesiritide-and-vosoritide) - Carperitide (ANP), nesiritide (BNP) and vosoritide (a CNP analogue) as regulated medicines: indications, what the trials and meta-analyses measured, and their status in the October 2026 Poisons Standard, with the TGA, FDA and WADA records. - [What is ANP? Atrial natriuretic peptide explained from the research](https://www.formlaboratories.com/learn/natriuretic-peptides/what-is-anp) - What ANP is: a 28-amino-acid hormone made by the heart's upper chambers, what releases it, how it was found, which receptor it uses, and where the human evidence stops. ## [Are peptides legal in Australia? Research peptide schedule status](https://www.formlaboratories.com/learn/peptides-and-australian-law) Peptide legality in Australia depends on the compound, product and activity, including any required prescription, approval or authority. BPC-157, CJC-1295, ipamorelin and TB-500 have named Schedule 4 and Appendix D entries in the October 2026 Poisons Standard (as-made text read 14 October 2026). The TGA says a research-use-only label does not remove regulatory obligations (guidance read 14 October 2026). Research material is not presented here as authorised for personal human use. - [What did the March 2026 PBAC decide on tirzepatide?](https://www.formlaboratories.com/learn/peptides-and-australian-law/tirzepatide-pbac-march-2026-status) - The March 2026 PBAC recommendation for tirzepatide, with the dated official decision linked. A committee recommendation does not establish a listing date. - [What did the November 2025 PBAC decide on semaglutide?](https://www.formlaboratories.com/learn/peptides-and-australian-law/semaglutide-pbac-november-2025-status) - The November 2025 PBAC semaglutide recommendation for a defined cardiovascular disease and obesity population, linked to the official decision and its date. - [What is the status of the retatrutide TRIUMPH-OUTCOMES trial?](https://www.formlaboratories.com/learn/peptides-and-australian-law/retatrutide-triumph-outcomes-status) - NCT06383390: the dated ClinicalTrials.gov status of retatrutide TRIUMPH-OUTCOMES, its estimated completion and whether registry results are posted. - [What Schedule 4 and Appendix D mean for research peptides](https://www.formlaboratories.com/learn/peptides-and-australian-law/what-schedule-4-and-appendix-d-mean) - What Schedule 4 and Appendix D, clause 5 of the October 2026 Poisons Standard mean, set side by side with the exact clause wording, read 1 October 2026. ## [Peptides in Australia: Research, Law and Verification](https://www.formlaboratories.com/learn/peptides-in-australia) Research peptides are amino-acid chains supplied for laboratory investigation, not human or animal use ([Form Laboratories research-material statement](/), checked 15 October 2026). Australian law applies therapeutic-goods requirements and substance-specific scheduling; a research label does not remove regulatory obligations ([TGA, peptide regulation](https://www.tga.gov.au/products/medicines/monitoring-and-compliance/how-we-regulate-therapeutic-peptide-products); [October 2026 Poisons Standard](https://www.legislation.gov.au/F2026L01327/asmade/2026-09-30/text/original/epub/OEBPS/document_1/document_1.html), checked 15 October 2026). ## [Peptide Science](https://www.formlaboratories.com/learn/peptide-science) Peptides are short chains of amino acids, the building blocks of proteins, and some are approved medicines while others are sold as research material with no approval. This hub answers questions about peptides from published studies and regulator records, and each answer names its source and date. Research material is not for human or animal use. - [Is SLU-PP-332 a peptide, and what harm record exists?](https://www.formlaboratories.com/learn/peptide-science/what-is-slu-pp-332) - SLU-PP-332 is a small molecule. Read what its chemistry record and mouse paper show, and why human side effects remain unknown. - [What is SS-31, and did its trial measure weight loss?](https://www.formlaboratories.com/learn/peptide-science/what-is-ss-31-elamipretide) - SS-31 is also called elamipretide. Read what its Barth syndrome trial measured, what the FDA approved, and why those findings cannot show weight loss. - [Which peptides are approved in Australia and by the FDA?](https://www.formlaboratories.com/learn/peptide-science/which-peptides-are-approved-in-australia-and-by-the-fda) - Which peptide medicines the TGA and the FDA have approved, how approval differs from availability, and where research peptides sit, with records checked 14 October 2026. - [What are peptides? Meaning, medicines, safety and legal status in Australia](https://www.formlaboratories.com/learn/peptide-science/what-are-peptides) - What peptides are: short chains of amino acids made by the body, some approved as medicines. Regulator and study evidence, safety records and Australian legal status. Research material is not a medicine. - [What is a peptide bond? Peptide structure, chemistry and synthetic peptides explained](https://www.formlaboratories.com/learn/peptide-science/what-is-a-peptide-bond) - A peptide bond is the amide link that joins two amino acids. How it forms, where it sits, how to count bonds, which foods contain them, and what synthetic peptides and peptide vaccines are. - [Citrullinated peptide antibodies: what anti-CCP is, why the test peptide is cyclic and how it is pronounced](https://www.formlaboratories.com/learn/peptide-science/citrullinated-peptide-antibodies) - Anti-CCP antibodies bind a lab-made cyclic peptide that contains citrulline. How citrullination works, why the test peptide is a ring, what the test measures, how the 2010 ACR/EULAR criteria use it, and how to say the name. - [Peptide vs protein: what is the difference? Peptides compared with proteins, hormones, collagen and approved medicines](https://www.formlaboratories.com/learn/peptide-science/peptide-vs-protein) - Peptide vs protein, hormone, steroid and collagen compared: size conventions, natural vs synthetic, research vs compounded, and what published trials and regulators record. Research material is not a medicine. - [What do peptides do? What published studies found](https://www.formlaboratories.com/learn/peptide-science/what-do-peptides-do) - What peptides do in the body, and what published studies found on weight, skin, growth hormone, joints and inflammation. Research material is not a medicine. - [Peptide side effects: what studies and regulators have recorded](https://www.formlaboratories.com/learn/peptide-science/peptide-side-effects) - Adverse events recorded for peptides in named trials, case reports, FDA and TGA documents, with study type, size and the limits of available human evidence. - [Do peptides show up on drug tests? How peptides are tested and labelled](https://www.formlaboratories.com/learn/peptide-science/do-peptides-show-up-on-drug-tests) - Whether peptides show up on workplace and sport drug tests, how laboratories test peptide material for identity and purity, and what labelling a peptide means. - [What have collagen peptide studies measured about muscle?](https://www.formlaboratories.com/learn/peptide-science/collagen-muscle-study-findings) - What human collagen peptide studies measured about muscle protein building, body composition and strength, with the limits of each measurement explained. - [What is a signal peptide, and how does it direct a protein?](https://www.formlaboratories.com/learn/peptide-science/signal-peptides-and-targeting) - What a signal peptide sequence means, how cells recognise a protein's address, and why protein targeting differs from cosmetic signal-peptide language. - [What is carnosine, and what do studies measure?](https://www.formlaboratories.com/learn/peptide-science/what-is-carnosine) - Carnosine explained: its amino acid parts, acid buffering, chemical reactions, and what enzyme tests and human muscle measurements can establish. - [What is CGRP, and how does its signalling work?](https://www.formlaboratories.com/learn/peptide-science/what-is-cgrp) - CGRP explained: the body's nerve messenger, its CLR and RAMP1 receptor, cell signals, blood-vessel studies and the limits of each kind of evidence. - [What is icotrokinra, and what do receptor studies measure?](https://www.formlaboratories.com/learn/peptide-science/what-is-icotrokinra) - Learn what icotrokinra is, how the IL-23 receptor works, and why binding, cell signals and human biomarkers answer different research questions. - [What is irisin, and how is it studied?](https://www.formlaboratories.com/learn/peptide-science/what-is-irisin) - Irisin explained: its relationship to FNDC5, protein and peptide terminology, cell signalling studies, human blood measurements and the limits of the evidence. - [What is lunasin, and what have studies measured?](https://www.formlaboratories.com/learn/peptide-science/what-is-lunasin) - Lunasin is a soybean peptide studied through chemical analysis, cell experiments and human measurements. Learn what each study measured and what remains unknown. - [What is pramlintide, and how does amylin signalling work?](https://www.formlaboratories.com/learn/peptide-science/what-is-pramlintide) - Pramlintide explained through amylin biology: peptide structure, receptor partners, cell signals, human study measurements and the limits of research material. - [What is peptide YY, and what do studies measure?](https://www.formlaboratories.com/learn/peptide-science/what-is-pyy) - Peptide YY explained: the gut's natural signal, PYY forms and receptors, and what blood tests, animal experiments and human studies can show. - [What does TAT-DATNT refer to in peptide research?](https://www.formlaboratories.com/learn/peptide-science/what-is-tat-datnt) - The meaning of TAT-DATNT, its link to dopamine transporter research, a published sequence mismatch, and the limits of laboratory evidence. ## [Bacteriostatic Water](https://www.formlaboratories.com/learn/bacteriostatic-water) Bacteriostatic water is sterile water that contains benzyl alcohol as a preservative, sold in multiple-dose vials and labelled in the US only for diluting or dissolving drugs. This hub answers questions about it from US drug labels, CDC and TGA records and published studies, with each answer dated. Research material is not for human or animal use. - [Bacteriostatic water vs sterile water: what is the difference?](https://www.formlaboratories.com/learn/bacteriostatic-water/bacteriostatic-water-vs-sterile-water) - Bacteriostatic water holds a preservative and sterile water does not. How both differ from WFI, saline and irrigation water, read from US drug labels. - [What is bacteriostatic water (BAC water)?](https://www.formlaboratories.com/learn/bacteriostatic-water/what-is-bacteriostatic-water) - Bacteriostatic water is sterile water with benzyl alcohol added as a preservative. What the US labels say it contains, its pH, and what studies found about spoilage and stinging. - [Bacteriostatic water storage: what labels say about the fridge, freezing and expiry](https://www.formlaboratories.com/learn/bacteriostatic-water/bacteriostatic-water-storage) - What US labels, CDC, the TGA and federal rules record about bacteriostatic water storage: label storage statements, refrigeration, freezing, opened vials and expiry dates. - [Bacteriostatic water: US labels, marketing status and Australian rules](https://www.formlaboratories.com/learn/bacteriostatic-water/bacteriostatic-water-regulatory-status) - What US drug labels on DailyMed state about bacteriostatic water, its marketing applications, benzyl alcohol and opened-vial time limits, with the Australian Poisons Standard and TGA records. - [Is bacteriostatic water just sterile water? Label specifications and tests compared](https://www.formlaboratories.com/learn/bacteriostatic-water/bacteriostatic-water-quality-testing) - Bacteriostatic water is not just sterile water. The specification lines on US labels, how preservatives are tested, and what a label cannot show about one vial. - [How long does bacteriostatic water last? Unopened, opened and in the fridge](https://www.formlaboratories.com/learn/bacteriostatic-water/how-long-does-bacteriostatic-water-last) - How long bacteriostatic water lasts: what the printed expiry date records for an unopened vial, how manufacturer stability evidence differs from healthcare handling standards for opened vials, and what the sources say about fridge storage and the body's handling of benzyl alcohol. - [What is bacteriostatic water used for? What labels and studies report](https://www.formlaboratories.com/learn/bacteriostatic-water/what-is-bacteriostatic-water-used-for) - What the US label records as the category of bacteriostatic water, what sources say about the preservative, and what three nursing studies of bacteriostatic saline found, with their limits. - [Bacteriostatic water side effects: what labels, regulators and studies record](https://www.formlaboratories.com/learn/bacteriostatic-water/bacteriostatic-water-side-effects) - Reactions and warnings recorded for bacteriostatic water in US labels, a CDC report, an EMA document and published studies, with the study type and size, and where no data exist. ## [Weight loss: what the research says](https://www.formlaboratories.com/learn/weight-loss) Weight-loss research on the quiz items is uneven. Human clinical trials of the molecules behind the two GLP research peptides, RTA and TRZ, recorded group-average falls in body weight against placebo in trials of 48 to 80 weeks. Those trials were mostly developer-funded, enrolled screened adults and tested trial drug product, not research material. For BPC-157, searches on 14 October 2026 found animal tendon studies and no weight-loss study in people. ## [Muscle gain: what the research says](https://www.formlaboratories.com/learn/muscle-gain) The research on muscle gain for the two quiz items is indirect. CJC-1295 and ipamorelin have small human studies in healthy adults that measured growth hormone levels, not muscle. BPC-157 has rat studies of injured muscle and tendon and a few human reports with no control group. No human study found for these guides measured muscle mass after any of the three peptides. ## [Injury recovery: what the research says](https://www.formlaboratories.com/learn/injury-recovery) Research on injury recovery for BPC-157 and TB-500 is mainly animal research. Rat studies of BPC-157 after a cut tendon or muscle reported better healing measures than in untreated rats, and the three published human pilot reports had no control group (FDA, July 2026). The FDA's May 2026 briefing identified no human study of TB-500; the closest evidence is a mouse wound study of its parent protein. Animal results do not show what happens in people. ## [Anti-ageing skin: what the research says](https://www.formlaboratories.com/learn/anti-ageing-skin) Skin research on GHK-Cu and TB-500 comes mainly from cell and animal studies. In a laboratory cell study, GHK-Cu increased collagen production; one small human study after laser resurfacing found no clear measured difference between groups. The FDA’s May 2026 briefing document identified no human study of TB-500, and the closest skin result is a 2003 study in aged mice of its parent protein. Neither record establishes how ageing human skin changes. ## [Focus: what the research says](https://www.formlaboratories.com/learn/focus) Published research on the two Focus quiz items comes from cells, animals and small human studies. Semax studies measured BDNF, a brain protein, in cells and rats, and the human studies are small, with no placebo-controlled trial in patients. CJC-1295 + Ipamorelin studies in small groups of healthy people measured growth hormone. None of these studies measured focus in people. ## Compounds - [Retatrutide](https://www.formlaboratories.com/learn/retatrutide) - 21 articles - [LL-37](https://www.formlaboratories.com/learn/ll-37) - 5 articles - [Melanotan II](https://www.formlaboratories.com/learn/melanotan-2) - 5 articles - [GHRP-2 and GHRP-6](https://www.formlaboratories.com/learn/ghrp-2-and-ghrp-6) - 5 articles - [IGF-1 LR3](https://www.formlaboratories.com/learn/igf-1-lr3) - 5 articles - [PT-141](https://www.formlaboratories.com/learn/pt-141) - 5 articles - [AOD-9604](https://www.formlaboratories.com/learn/aod-9604) - 5 articles - [NAD+](https://www.formlaboratories.com/learn/nad-plus) - 6 articles - [Tirzepatide](https://www.formlaboratories.com/learn/tirzepatide) - 6 articles - [BPC-157](https://www.formlaboratories.com/learn/bpc-157) - 5 articles - [CJC-1295](https://www.formlaboratories.com/learn/cjc-1295) - 6 articles - [GHK-Cu](https://www.formlaboratories.com/learn/ghk-cu) - 6 articles - [MOTS-c](https://www.formlaboratories.com/learn/mots-c) - 6 articles - [TB-500](https://www.formlaboratories.com/learn/tb-500) - 6 articles - [Selank](https://www.formlaboratories.com/learn/selank) - 5 articles - [Semax](https://www.formlaboratories.com/learn/semax) - 5 articles - [Tesamorelin](https://www.formlaboratories.com/learn/tesamorelin) - 7 articles - [Ipamorelin](https://www.formlaboratories.com/learn/ipamorelin) - 5 articles --- Canonical page: https://www.formlaboratories.com/learn Form Laboratories - Perth-based research-use-only peptide supplier, shipping Australia-wide. - Site guide for agents: https://www.formlaboratories.com/llms.txt - Sitemap: https://www.formlaboratories.com/sitemap.xml - Full catalogue: https://www.formlaboratories.com/shop - Contact: hello@formlaboratories.com All materials are supplied for laboratory research use only - not for human or veterinary use, and nothing on this site is medical advice.