Peptides navigator — 10 references

Peptides, from A to Z

Explore evidence-graded monographs with mechanisms, studied outcomes, safety context and human research.

BPC-157

Peptides

A lab-made peptide that is extremely popular online for healing tendons and joints - but it has NEVER been tested in a completed human study.

Not an approved medicationEvidence: None in humansDo not buy online

Not authorized as a food supplement; prohibited in and out of competition (WADA, S0 category)Details →

CJC-1295

Peptides

A lab-made peptide marketed for anti-aging and muscle growth by raising growth hormone.

Not an approved medicationEvidence: Some human data exists but only on hormone blood levels, not on realDo not buy online

Not FDA/EMA approved; sold as a research chemical; prohibited in sport (WADA)Details →

GHK-Cu (Copper Peptide)

Peptides

A skin-care ingredient (copper peptides) shown to help with collagen and skin appearance when applied as a cream or serum.

Not an approved medicationEvidence: Moderate for skin use

Cosmetic ingredient (topical); not approved as an injectable drug or supplementDetails →

Ipamorelin

Peptides

Another lab-made growth hormone peptide, often sold alongside CJC-1295.

Not an approved medicationEvidence: Some human data exists but only on hormone blood levels, not on realDo not buy online

Not FDA/EMA approved; sold as a research chemical; prohibited in sport (WADA)Details →

PT-141 (Bremelanotide)

Peptides

An injectable medication (brand name Vyleesi) approved specifically to treat low sexual desire in premenopausal women.

Approved medicationEvidence: Strong for its approved useDo not buy online

FDA-approved (Vyleesi) for the approved indication only; off-label use not regulatedDetails →

Retatrutide

Peptides

A newer, more powerful weight-loss peptide, similar in concept to semaglutide/tirzepatide but not yet on the market.

Not an approved medicationEvidence: Promising early human data, but the full picture is not in yetDo not buy online

Not yet approved - Phase 3 trials ongoing as of 2026 (verify current status)Details →

Semaglutide

Peptides

The active ingredient in Ozempic and Wegovy. Reduces appetite and helps with significant weight loss and blood sugar control.

Approved medicationEvidence: Very strong

FDA/EMA approved (Ozempic, Wegovy) for type 2 diabetes and chronic weight managementDetails →

Sermorelin

Peptides

An older growth-hormone peptide. It USED to be an approved medicine for children with growth hormone deficiency, but that approval was withdrawn years ago.

Approval withdrawnEvidence: Solid old evidence for its original medical useDo not buy online

Previously FDA-approved (Geref, discontinued); now compounded/research use in many marketsDetails →

TB-500 (Thymosin Beta-4)

Peptides

A peptide marketed online for healing injuries - but this is based on a different, related molecule that was studied, not the actual product being sold.

Not an approved medicationEvidence: None in humans for the product actually sold onlineDo not buy online

Not approved as a dietary supplement or drug; sold as a research chemical; prohibited in sport (WADA)Details →

Tirzepatide

Peptides

The active ingredient in Mounjaro and Zepbound. Similar to semaglutide but often produces even more weight loss.

Approved medicationEvidence: Very strong

FDA/EMA approved (Mounjaro, Zepbound) for type 2 diabetes and chronic weight managementDetails →