Topic
What studies show about each peptide: healing, growth hormone and fat-loss claims, side effects and legal status, and which results come only from animal studies. 53 guides, each with its sources.
Best for
Ranked by human evidence: tesamorelin (FDA-approved for HIV belly fat), MK-677 (17 trials, oral), CJC-1295 and sermorelin (small studies), ipamorelin (very little). None is…
Fact sheet
GHK-Cu is a copper-binding tripeptide found naturally in blood, widely used in skin care. Human trials are few and small, and injectable GHK-Cu has…
Guide
Glutathione is the body's main antioxidant. Injectable forms are popular for skin brightening, but a 2018 dermatology review found the evidence for IV glutathione…
Comparison
Tesamorelin is an FDA-approved GHRH analog that cut deep belly fat about 15% in HIV trials. Ipamorelin is an unapproved ghrelin-receptor peptide with no…
Comparison
MK-677 and ipamorelin both act on the ghrelin receptor. MK-677 is taken by mouth and has 17 human trials (including 12-month studies); ipamorelin is…
Comparison
GHK-Cu is a natural copper peptide used mainly in skin care, with small topical trials. BPC-157 is a synthetic healing peptide with five small…
Comparison
BPC-157 has five small human reports; TB-500 has none. Both are unapproved "healing" peptides banned in sport, and both were narrowly backed for compounding…
Best for
Ranked by human evidence: tesamorelin (FDA-approved for HIV belly fat), MK-677 (17 trials, oral), CJC-1295 and sermorelin (small studies), ipamorelin (very little). None is…
Guide
Peptide therapy cost in 2026 depends mostly on where you buy. NAD+, glutathione and sermorelin injections run roughly $100 to $500 a month. Through…
Vendor review
Sermorelin is one of the most talked-about growth hormone secretagogues on the market right now! People are using it for fat loss, better sleep,…
Vendor review
Where to buy TB-500 online, what is and isn't known about it in people, what to check in a seller, and our current pick.
Guide
Peptides have exploded in popularity across the fitness and wellness world and for good reason! It used to be reserved for elite athletes and…
Question
Here’s something most people in the training community get wrong about recovery: they track their calories, log their lifts, manage their stress, and still…
Guide
The research peptide market in 2026 looks very different from what it was eighteen months ago. Peptide Sciences, for years one of the most…
Fact sheet
GHK-Cu is a copper-binding tripeptide found naturally in blood, widely used in skin care. Human trials are few and small, and injectable GHK-Cu has…