Peptide compounds
A peptide is a short chain of amino acids, and in the body most of them work as messengers: one tissue sends a signal, another receives it and changes what it’s doing. Insulin is a peptide. So is GLP-1, the gut hormone behind medications like Ozempic.
Different peptides carry different signals, which is why research tends to cluster around a particular question — tissue repair, metabolism, sleep timing. The goals below are those research clusters. Filtering by one shows you the compounds studied in research on that goal — not a ranking, and not a claim that any of them work.
Educational reference, not medical advice.
76 compounds
5-Amino-1MQMetabolic
A small molecule studied in fat-loss and metabolism research; taken as capsules.
AdamaxCognitive
A lab-made cousin of Semax studied in focus, memory, and brain-protection research.
AdipotideMetabolic
A synthetic peptide studied in preclinical fat-mass research; human work was stopped.
AICARMetabolic
A research compound studied as an 'exercise mimic' acting on the AMPK energy pathway.
AOD-9604Metabolic
A growth-hormone fragment studied in fat-loss research, with little effect on IGF-1.
ARA-290Recovery
An EPO-derived peptide studied in nerve-damage and neuropathy research.
BPC-157Recovery
A lab-made peptide from a stomach protein, studied in tissue-repair and gut research.
Bremelanotide (Vyleesi)Sexual Health
FDA-approved (2019) melanocortin agonist for premenopausal hypoactive sexual desire disorder. Same molecule as PT-141.
CagrilintideMetabolic
A long-acting form of the hormone amylin, studied for weekly weight management.
CartalaxAnti-aging
A synthetic 3-part peptide studied in cell-aging and connective-tissue research.
CerebrolysinCognitive
A mix of small nerve-signal peptides studied in brain-protection research.
ChonlutenLongevity
A short 3-part peptide studied in cell models of lung tissue and inflammation.
CJC-1295 (no DAC)Growth Hormone
A short-acting GHRH peptide studied for its brief growth-hormone pulse.
CJC-1295 with DACGrowth Hormone
A long-acting GHRH peptide studied for sustained growth-hormone and IGF-1 levels.
CortagenCognitive
A synthetic 4-part brain-derived peptide studied in nerve-protection research.
DihexaCognitive
Angiotensin IV-derived oligopeptide studied as a potent procognitive/synaptogenic agent via the HGF/c-Met system. Evidence is preclinical only; no human trials or established safety profile.
DSIPCognitive
A sleep-linked peptide studied for sleep patterns, stress, and pain research.
EpitalonLongevity
A small 4-part peptide studied in cellular-aging and body-clock research.
Follistatin-344Growth Factor
A myostatin-blocking peptide studied in gene-therapy trials for muscle mass.
FOXO4-DRIResearch
A peptide studied in aging research for clearing worn-out (senescent) cells.
GHK-CuAnti-aging
A copper-binding 3-part peptide studied in skin, wound-healing, and gene research.
GHRP-2Growth Hormone
A peptide studied for a strong growth-hormone pulse via the ghrelin receptor.
GHRP-6Growth Hormone
A peptide studied for growth-hormone release and marked appetite response.
GlutathioneLongevity
The body's main antioxidant peptide, studied in detox and oxidative-stress research.
GonadorelinSexual Health
A GnRH peptide studied for pituitary testing and low-testosterone signaling.
HexarelinGrowth Hormone
Methylated GHRP-6 analog with higher potency; investigated for GH release and direct cardioprotective effects.
HGH 191AAGrowth Hormone
Lab-made human growth hormone, studied for body-composition and tissue research.
HGH Fragment 176-191Metabolic
C-terminal fragment of human growth hormone; the active region that AOD-9604 was designed to mimic.
HMGSexual Health
A gonadotropin prep (FSH + LH) studied for sperm production alongside hCG.
HumaninLongevity
Mitochondrial-derived 24-amino-acid peptide encoded in the 16S rRNA; cytoprotective against Alzheimer-related toxicity and metabolic stress.
IGF-1 LR3Growth Hormone
A long-acting IGF-1 analog studied in muscle-growth and recovery research.
IpamorelinGrowth Hormone
A selective ghrelin-receptor peptide studied for a clean growth-hormone pulse.
KisspeptinSexual Health
A family of related brain peptides studied in fertility and testosterone research.
Kisspeptin-10Sexual Health
The 10-part core of kisspeptin, studied for its role in the reproductive axis.
KPV (Lysine-Proline-Valine)Recovery
A 3-part fragment of alpha-MSH studied in gut- and skin-inflammation research.
L-CarnitineMetabolic
An amino-acid derivative studied in fat-metabolism and energy research.
LivagenLongevity
A synthetic 4-part peptide studied in aging-tissue and gene-activity research.
LL-37Recovery
A natural human peptide studied in antimicrobial, immune, and wound-healing research.
MazdutideMetabolic
A dual GLP-1/glucagon peptide studied for weight management and blood sugar.
Melanotan I (Afamelanotide)Tanning
An alpha-MSH analog studied for gradual tanning and UV research.
Melanotan IISexual Health
A synthetic alpha-MSH analog studied for tanning response and arousal research.
MGF (Mechano Growth Factor)Growth Hormone
An IGF-1 splice form from stressed muscle, studied in muscle-repair research.
MK-677 (Ibutamoren)Growth Hormone
An oral ghrelin-mimic studied for 24-hour growth-hormone and IGF-1 levels.
MOTS-cMetabolic
A peptide the body makes in its mitochondria, studied in metabolism research.
NAD+ (Nicotinamide Adenine Dinucleotide)Longevity
An injectable coenzyme (NAD+) studied in cell-energy and DNA repair research.
OvagenLongevity
A synthetic 3-part peptide studied in preclinical gut- and liver-tissue research.
OxytocinCognitive
A hypothalamic peptide hormone studied in bonding, stress, and pain research.
PE-22-28Cognitive
A spadin-derived peptide studied preclinically as a fast-acting antidepressant.
PEG-MGFGrowth Hormone
A PEGylated MGF studied for a longer half-life in muscle-repair research.
PinealonCognitive
A short 3-part peptide studied in nerve-protection, body-clock, and sleep research.
PNC-27Research
A chimeric p53-derived peptide studied only preclinically against cancer cells.
ProstamaxAnti-aging
A Khavinson-family peptide studied (often as capsules) in prostate-tissue research.
PT-141Sexual Health
A melanocortin peptide (bremelanotide) studied for arousal and libido research.
PTD-DBMHair Growth
A topical cell-penetrating peptide that inhibits CXXC5 to reactivate Wnt/beta-catenin signaling in hair follicles, often paired with microneedling for androgenetic alopecia and hair thinning; evidence is currently limited to mouse studies.
RetatrutideMetabolic
A triple GIP/GLP-1/glucagon peptide studied for weight loss in trials.
SelankCognitive
A tuftsin-derived 7-part peptide studied for calm and focus research.
SemaglutideMetabolic
A GLP-1 peptide (Wegovy/Ozempic) studied for weight loss in the STEP-1 trial.
SemaxCognitive
An ACTH-derived peptide studied for focus, nerve-protection, and stroke recovery.
SermorelinGrowth Hormone
A GHRH (1-29) peptide studied for growth-hormone release; short-acting.
SLU-PP-332Metabolic
A synthetic 'exercise mimic' studied in preclinical fat-oxidation research.
SNAP-8Anti-aging
A topical cosmetic peptide studied for softening expression lines.
SS-31 (Elamipretide)Longevity
A peptide that gathers in mitochondria, studied in cellular-energy research.
SurvodutideMetabolic
A dual GLP-1/glucagon peptide studied for obesity and liver-disease research.
TA1 (Thymosin Alpha-1)Anti-aging
Thymosin Alpha-1, an immune-signaling peptide studied and approved for hepatitis B.
TB-500Recovery
A lab-made Thymosin Beta-4 fragment studied in tissue-repair research.
TesamorelinMetabolic
A GHRH analog studied for visceral-fat and body-composition research.
TesofensineMetabolic
An oral triple-monoamine reuptake blocker studied for weight loss in trials.
TestagenLongevity
A synthetic 4-part peptide studied in pituitary-gonadal endocrine research.
ThymalinAnti-aging
A thymus-derived preparation studied for immune-aging and resilience research.
Thymosin Alpha-1Anti-aging
An immune-signaling 28-part peptide studied and approved for hepatitis B and C.
Thymosin Beta-4Recovery
A natural actin-binding peptide studied in tissue-repair research; TB-500's parent.
ThymulinImmune
A zinc-dependent thymic peptide studied in immune-aging and hair-cycle research.
TirzepatideMetabolic
A dual GIP/GLP-1 peptide (Mounjaro/Zepbound) studied for weight loss in trials.
VesugenLongevity
A synthetic 3-part peptide studied in preclinical blood-vessel-cell research.
VilonLongevity
A synthetic 2-part peptide studied in preclinical immune-cell research.
VIP (Vasoactive Intestinal Peptide)Research
28-amino-acid neuropeptide with vasodilatory, anti-inflammatory, and circadian-regulating roles.