Peptide database

A synthetic fragment of a protein found in gastric juice, widely used in the recovery community for tendon, gut and soft-tissue complaints.

A synthetic version of the active region of thymosin beta-4, a naturally occurring wound-healing protein present in nearly all human cells.

A growth-hormone-releasing hormone analogue that raises the baseline of natural GH output rather than replacing it.

The most selective of the growth-hormone secretagogues, valued because it lifts GH without meaningfully raising cortisol or prolactin.

The one GH-axis peptide with full FDA approval, indicated for reducing excess visceral abdominal fat in HIV-associated lipodystrophy.

A long-acting GLP-1 receptor agonist with the strongest clinical weight-loss evidence of any peptide on the market.

A dual incretin agonist that has produced the largest weight reductions yet seen in obesity pharmacotherapy trials.

A once-weekly 'triple G' agonist that produced the largest weight reductions of any incretin-class molecule in phase 2 obesity trials.

A mitochondrial-encoded peptide that acts as a metabolic regulator, studied for insulin sensitivity, fat oxidation and exercise-mimetic effects.

A GH fragment marketed for fat loss without the blood-sugar effects of full growth hormone — though human trials have been underwhelming.

An orally active NNMT inhibitor grouped with metabolic peptides, studied for fat-cell metabolism and NAD+ preservation.

A synthetic pineal peptide from Russian gerontology research, studied for telomerase activation and circadian regulation.

A mitochondria-targeting peptide in late-stage clinical trials for primary mitochondrial myopathy and rare eye disease.

A central metabolic coenzyme injected or infused in longevity clinics; declining NAD+ is a hallmark of biological ageing.

A Russian nootropic peptide used clinically there for stroke recovery and cognitive impairment, popular as an intranasal focus aid.

An anxiolytic peptide developed alongside Semax, used for anxiety and stress without sedation or dependence.

A naturally occurring copper-binding tripeptide with the best-supported cosmetic profile of any peptide, plus hair and wound-healing uses.

A melanocortin agonist that stimulates tanning and libido — and the peptide most associated with real, documented harms.

An FDA-approved melanocortin agonist for hypoactive sexual desire disorder that works through the central nervous system rather than the vascular system.

An upstream regulator of the reproductive axis studied for libido, fertility and hormone signalling.