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BPC-157
Body Protection Compound
Moderate Synthetic gastric peptide studied for tendon, ligament and gut-lining repair.
TB-500
Thymosin β-4 fragment
Low Actin-regulating peptide explored for soft-tissue and muscle recovery.
Copper-binding peptide with skin-remodeling and regenerative signaling.
Semaglutide
GLP-1 receptor agonist
High GLP-1 agonist with large-trial weight-loss and glycemic-control data.
Tirzepatide
GIP / GLP-1 agonist
High Dual GIP/GLP-1 agonist; among the most effective pharmacologic weight-loss agents.
GHRH analog FDA-approved to reduce visceral adipose tissue.
AOD-9604
GH fragment 176-191
Low Modified GH fragment marketed for fat metabolism.
Long-acting GHRH analog used to raise GH/IGF-1, often paired with a GHRP.
Ipamorelin
GH secretagogue
Moderate Selective GH secretagogue valued for a clean side-effect profile.
GHRH analog historically used to assess and support GH secretion.
Anxiolytic peptide studied for stress resilience and focus.
Nootropic peptide explored for cognition and neuroprotection.
Dihexa
Angiotensin-IV analog
Low Peptide investigated for synaptogenesis and memory.
Larazotide
Zonulin antagonist
Moderate Tight-junction regulator trialed for celiac disease.
Tripeptide with anti-inflammatory action in gut and skin.
Epitalon
Pineal tetrapeptide
Low Peptide studied for telomere and circadian effects.
NAD+
Nicotinamide adenine dinucleotide
Moderate Coenzyme central to cellular energy and sirtuin-mediated repair.
MOTS-c
Mitochondrial-derived peptide
Low Peptide linked to metabolic and exercise-mimetic effects.
Cardiolipin-targeting peptide investigated for mitochondrial disease.
Immune-modulating peptide approved in many countries for infection support.
Human antimicrobial peptide explored for innate immune defense.
GHRP-2
GH-releasing peptide 2
Moderate Growth-hormone-releasing peptide used to amplify GH/IGF-1 pulses.
GHRP-6
GH-releasing peptide 6
Low Early GH secretagogue notable for a strong appetite and gut-motility effect.
Potent GH secretagogue also studied for cardioprotective signaling.
Orally active GH secretagogue that raises GH and IGF-1 without injection.
Long-acting insulin-like growth factor analog explored for muscle growth.
Peptide investigated for myostatin inhibition and muscle hypertrophy.
Daily GLP-1 agonist approved for weight management and type-2 diabetes.
Retatrutide
GGG triple agonist
Moderate Investigational triple GIP/GLP-1/glucagon agonist with large weight-loss signals.
Cagrilintide
Long-acting amylin analog
Moderate Amylin analog studied alone and with semaglutide for weight loss.
DSIP
Delta sleep-inducing peptide
Low Neuromodulatory peptide explored for sleep quality and stress resilience.
Cerebrolysin
Neuropeptide preparation
Moderate Neurotrophic peptide preparation studied for stroke and cognitive recovery.
Humanin
Mitochondrial-derived peptide
Low Mitochondrial-derived peptide linked to cytoprotection and metabolic health.
Thymic peptide preparation used abroad to support immune function.
VIP
Vasoactive intestinal peptide
Low Signaling peptide investigated for gut and immune inflammation.
EPO-receptor peptide studied for neuropathic pain and small-nerve-fiber regeneration without raising red blood cell count.
FDA-approved melanocortin agonist that increases sexual desire via a central brain mechanism, not vascular.
Upstream hypothalamic peptide that stimulates GnRH release, driving natural LH/FSH and testosterone production.
HCG
Human Chorionic Gonadotropin
High LH-mimicking hormone used to maintain testicular function and fertility during testosterone therapy.
Glutathione
Master antioxidant
Moderate The body's primary endogenous antioxidant, used IV/SC for systemic oxidative-stress support — oral forms are largely inactive.
Gonadorelin
Synthetic GnRH
Moderate Synthetic GnRH that signals the pituitary directly, preserving testicular function during TRT via a more physiological route than HCG.
FOXO4-DRI
Senolytic peptide
Low Cell-penetrating peptide studied for selectively clearing senescent ("zombie") cells.
Broad melanocortin-receptor agonist studied for tanning, libido, and appetite/metabolic effects.
IGF-1 splice variant released by muscle in response to mechanical stress, studied for muscle repair and hypertrophy.
PNC-27
p53-derived peptide
Low Anti-cancer research peptide that selectively targets HDM-2-overexpressing cancer cells.
Thymulin
Zinc-dependent thymic hormone
Moderate Zinc-dependent thymic nonapeptide that supports T-cell maturation — distinct from Thymalin, a different thymic peptide preparation.
Pineal-derived tripeptide studied for neuroprotection and cognitive support.
PTD-DBM
Hair-regrowth research peptide
Low Experimental peptide studied for stimulating hair regrowth via Wnt-pathway activation — animal data only.
Enclomiphene
trans-Clomiphene (not a peptide)
Moderate Oral SERM that raises testosterone while preserving fertility — a small molecule, not a peptide, included for its TRT-adjunct role.
SNAP-8
Acetyl Octapeptide-3
Low Topical cosmetic peptide marketed as a longer-acting successor to Argireline for expression-wrinkle reduction.
Argireline
Acetyl Hexapeptide-3
Moderate The original topical "Botox alternative" peptide for expression-wrinkle reduction.
OGF
Met-Enkephalin (Opioid Growth Factor)
Low Endogenous opioid-pathway peptide studied in oncology research — distinct from Low Dose Naltrexone.
PE 22-28
Spadin-derived peptide
Low Experimental peptide studied for rapid antidepressant and pro-cognitive effects via TREK-1 channel blockade.
Adipotide
Prohibitin-targeted peptide
Low Experimental peptide that selectively targets the blood supply of white fat tissue — development was halted after a kidney-function safety signal.
ACE-031
Myostatin inhibitor
Low Myostatin-pathway decoy receptor studied for muscle growth — development was discontinued over a vascular safety signal.
FDA-approved oral GH secretagogue — but only as a one-time diagnostic test, not a repeated-dose therapeutic peptide.
Thymogen
Glu-Trp dipeptide
Low A minimal two-amino-acid thymic peptide from the same research tradition as Epitalon — limited independent Western evidence.
Oxytocin
The "bonding hormone"
Moderate Endogenous bonding hormone, FDA-approved only for obstetric use — used off-label for sexual function and social/anxiety effects.
