Desire
PT-141
Melanocortin agonist studied for low sexual desire; the active ingredient in the FDA-approved Vyleesi.
Nasal spray
Peptides,
explained.
Look up a peptide’s structure, research, and evidence.
The research behind the catalogue
All productsLove Chemistry
Oxytocin
Hormone used in childbirth care; early findings that nasal oxytocin boosts trust and social behavior were not confirmed in larger trials.
Nasal spray
Calm
Selank
Peptide studied in small Russian trials for anxiety; registered in Russia as nasal drops.
Nasal spray
Focus
Semax
Peptide researched in Russia for stroke recovery and as a nootropic; FDA's 2026 review found little evidence in people.
Nasal spray
Calm Focus
Selank · Semax
Peptide studied in small Russian trials for anxiety; registered in Russia as nasal drops.
Nasal spray or Dissolving strips
Brain Power
Adamax
Marketed as a Semax-like peptide for focus and memory; its chemical identity and effects are not established in published research.
Nasal spray
Sold by USA Standard Research, the team behind PeptidesGenie, for research use only. Not for human or veterinary use.
Peptide reference
View allSemaglutide
Metabolism & appetite
C187H291N45O59
Large randomized human trials
BPC-157
Tissue repair
C62H98N16O22
Mainly animal and laboratory evidence
Selank
Anxiety research
C33H57N11O9
Small human studies and animal research
Semax
Brain-injury research
C37H51N9O10S
Animal research; limited clinical evidence
PT-141 (bremelanotide)
Sexual-desire disorders
C50H68N14O10
Human trials for a specific indication
Oxytocin
Childbirth physiology
C43H66N12O12S2
Established prescription obstetric uses
Tirzepatide
Weight & blood sugar
C225H348N48O68
Large randomized human trials
Vitamin B12 (cobalamin)
Vitamin deficiency
Not verified
Human trials, mainly in deficiency
NAD+ (nicotinamide adenine dinucleotide)
Cell energy & aging
C21H27N7O14P2
Limited human data; mostly precursor studies
MOTS-c
Metabolism & exercise
C101H152N28O22S2
Mainly animal and laboratory evidence
5-Amino-1MQ (5-amino-1-methylquinolinium)
Obesity & muscle aging
C10H11N2+
Animal and cell studies only
TB-500 (thymosin beta-4 fragment)
Tissue repair
C38H68N10O14
Animal and cell studies; no human studies
CJC-1295
Growth hormone
Not verified
Small human studies of the DAC form
Ipamorelin
Growth hormone
C38H49N9O5
Small human trials; animal research
Glutathione
Antioxidant research
C10H17N3O6S
Small human trials with mixed results
Melatonin
Sleep and body clock
C13H16N2O2
Randomized human trials; modest effects
DSIP (delta sleep-inducing peptide)
Sleep research
C35H48N10O15
Small, older human trials; mixed results
GABA (gamma-aminobutyric acid)
Stress and sleep
C4H9NO2
Small human trials; limited evidence
Pinealon
Brain-aging research
C15H26N6O8
Mainly cell and animal studies
Adamax
Unstudied cognitive claims
Not verified
No peer-reviewed research found
What is a peptide?
A peptide is a chain of amino acids linked by peptide bonds. Changing the sequence or structure can change how it behaves.
Read the explanationRead the evidence.
A result in cells or animals is different from a result in people. Each profile names the kind of research behind the claim.
How to read a study