Search by name. Full reviews explain the studies, results, and limits. Entries without a full review link to one source while review is pending.
See the VIP peptide review for an example of how a study result and product records are checked.
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How strong is the evidence?Established means an official review or strong studies in people support one defined use. Emerging means studies in people are still growing. Insufficient means reliable studies in people are missing or limited.
Review statusFull review means the evidence and its limits were checked. Indexed means a name and source are listed, but a full review is not ready yet.
Showing 1–20 of 54 peptides
Metabolic peptide medicines
Semaglutide
EstablishedAn official agency review or strong, repeated studies in people support one clear use. That evidence applies only to the product, people, and use in the reviewed sources. It does not mean the product is safe or effective for everyone.
This review covers Ozempic, Rybelsus, Wegovy, and the Wegovy HD strength. Their forms, approved uses, and labels differ.
EstablishedAn official agency review or strong, repeated studies in people support one clear use. That evidence applies only to the product, people, and use in the reviewed sources. It does not mean the product is safe or effective for everyone.
Insulin is a family of diabetes medicines. Different products can have different timing, risks, and instructions.
EstablishedAn official agency review or strong, repeated studies in people support one clear use. That evidence applies only to the product, people, and use in the reviewed sources. It does not mean the product is safe or effective for everyone.
Tirzepatide is the active ingredient in Mounjaro and Zepbound. Each approved product has its own uses and safety information. An approval for one product does not automatically apply to the other.
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
Cell and animal studies, plus small early studies in people, do not prove that BPC-157 heals injuries in people.
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
Short studies in healthy adults found that CJC-1295 raised growth hormone (GH) and insulin-like growth factor 1 (IGF-1). These hormone measurements do not prove better recovery, muscle gain, or fat loss.
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
A short human study measured growth-hormone release, but it did not prove health benefits. A different phase 2 study did not show benefit on its main or other measured outcomes.
EstablishedAn official agency review or strong, repeated studies in people support one clear use. That evidence applies only to the product, people, and use in the reviewed sources. It does not mean the product is safe or effective for everyone.
An established prescription medicine. Its evidence applies to specific products, uses, groups of people, and current labels.
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
Still being studied. Late-stage study reports show meaningful results in people, but no product is approved and no regulatory review is complete.
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
An investigational peptide made to act like the body's amylin signal. Human weight-loss studies exist, but no FDA-approved product exists.
EstablishedAn official agency review or strong, repeated studies in people support one clear use. That evidence applies only to the product, people, and use in the reviewed sources. It does not mean the product is safe or effective for everyone.
SS-31 is elamipretide. FDA approved Forzinity for one narrow use, not for anti-aging.
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
An Austrian-authorized finished product made from a pig-brain peptide mixture, not one peptide. Human trials exist, but no FDA-approved U.S. product was identified.
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
A research peptide that changed reproductive hormones for short periods in small human studies. This does not prove fertility, testosterone, or other treatment benefits.
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
A 28-amino-acid peptide studied in people. A large sepsis trial did not show fewer deaths, and no FDA-approved U.S. product was identified.
EstablishedAn official agency review or strong, repeated studies in people support one clear use. That evidence applies only to the product, people, and use in the reviewed sources. It does not mean the product is safe or effective for everyone.
An approved medicine for one specific HIV-related body-composition outcome. It is not a general weight-loss or anti-aging medicine.
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
Studies in people show a growth-hormone response. They do not prove broad anti-aging or muscle-building benefits. Former Geref products are no longer sold.
EstablishedAn official agency review or strong, repeated studies in people support one clear use. That evidence applies only to the product, people, and use in the reviewed sources. It does not mean the product is safe or effective for everyone.
FDA-approved human products are discontinued. Animal products are not approved for people.
Past human approval; current animal products · Last checked 2026-08-30
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
A six-amino-acid research peptide. Small human studies show short-term growth-hormone changes, not proven muscle, fat-loss, or other lasting health benefits.
InsufficientReliable studies in people are missing, too limited, or do not support the claim. This does not prove that the substance has no effect on the body.
A seven-amino-acid piece of thymosin beta-4 promoted for repair, without reliable human healing evidence and with major product and anti-doping limits.
Unapproved or compounded · Last checked 2026-08-01
EmergingSome studies in people exist. Important questions remain about benefit, safety, who it helps, or how long the effects last. This is not an approval or recommendation.
A three-amino-acid copper complex with topical and laboratory research. That research does not validate injectable, whole-body, or longevity claims.
Several or unclear types · Last checked 2026-07-23
InsufficientReliable studies in people are missing, too limited, or do not support the claim. This does not prove that the substance has no effect on the body.
A peptide first studied in cells and animals. It has no established outcomes from giving a MOTS-c drug product to people or adequate clinical safety record.
Unapproved or compounded · Last checked 2026-07-23
An entry can appear before its full review is ready. It links to a source, but it does not prove a benefit or safety claim. We publish a full review after checking the main sources, important limits, date, and each claim.