A quiet, careful reference for peptides and related compounds.

Used for appetite control, weight management, and blood-sugar regulation.

Used for appetite control, weight management, and blood-sugar regulation through GIP and GLP-1 signaling.

Claimed to reduce appetite and body fat and improve metabolic control through three hormone-receptor pathways.

Claimed to increase fullness and reduce food intake through amylin-like signaling.

Combines cagrilintide and semaglutide; claimed to strengthen appetite suppression and weight loss.

Used to reduce excess visceral abdominal fat in HIV-associated lipodystrophy; also promoted for body composition.

Promoted for fat breakdown and weight management.

Promoted for fat breakdown and body-composition changes.

Promoted for insulin sensitivity, metabolic health, and exercise performance.

Promoted for fat loss and metabolic support through NNMT inhibition; a small molecule, not a peptide.

Promoted as an exercise-mimetic compound for energy expenditure and endurance; a small molecule, not a peptide.

Promoted for tendon, ligament, muscle, and gut recovery.

Promoted for soft-tissue recovery, mobility, and wound repair. Products sold under this name may not be identical to full-length thymosin beta-4 studied in research.

A BPC-157/TB-500 blend promoted for combined soft-tissue and injury recovery.

Promoted for skin appearance, collagen support, hair growth, and tissue repair.

Promoted for calming inflammation, particularly in the gut and skin.

Promoted for antimicrobial activity, immune support, and wound repair.

Promoted for modulation of immune responses and support during infections.

A blend name commonly used for GHK-Cu, BPC-157, and TB-500 combinations, promoted for skin and tissue recovery. Ingredients and ratios depend on the product.

A blend name commonly used for a GLOW-style combination plus KPV, promoted for tissue recovery and inflammation support. Ingredients and ratios depend on the product.

Bremelanotide is used for certain low-sexual-desire disorders; also promoted for libido and arousal.

Promoted for increased skin pigmentation and tanning; also discussed for libido.

Promoted for bonding, social connection, and sexual response; these wellness claims are distinct from its established obstetric uses.

A cosmetic peptide promoted for reducing the appearance of expression lines and wrinkles.

A combination promoted for stimulating growth-hormone release, sleep, recovery, and body composition.

A long-acting growth-hormone-releasing-hormone analogue promoted for sustained GH/IGF-1 signaling and recovery.

Promoted for growth-hormone release, recovery, sleep, and body composition.

Promoted for stimulating the body's growth-hormone release, recovery, and sleep.

Promoted for stimulating growth-hormone release and supporting recovery and body composition.

Promoted for growth-hormone release, increased appetite, and recovery.

A modified IGF-1 analogue promoted for muscle growth and recovery.

Promoted for muscle repair and adaptation after training; distinct from unmodified endogenous growth-factor signals.

Promoted for muscle growth through inhibition of myostatin-related signaling.

Promoted for focus, memory, mental clarity, and neuroprotection.

Promoted for reduced anxiety, calmness, and mental clarity.

Marketed as a modified Semax-related compound for focus, motivation, and cognitive performance.

Promoted for memory, learning, and synapse-related signaling.

Promoted for reproductive-hormone signaling, libido, and fertility support.

A mixture of peptides and amino acids promoted for cognitive support and neurological recovery.

Marketed for memory, learning, and neuroplasticity. A vendor's P21 product should not automatically be identified with the P021 used in published studies.

A spadin-related research peptide promoted for mood support through TREK-1-channel signaling.

Promoted for healthy aging, sleep rhythms, and telomere-related effects.

A cellular coenzyme promoted for energy, recovery, and healthy aging; not a peptide.

A mitochondria-targeting peptide promoted for cellular energy and muscle function; general longevity claims differ from disease-specific use.

Promoted for cognitive support, stress resilience, and healthy brain aging.

Promoted for vascular function, circulation, and healthy aging.