Sexual health peptides

Kisspeptin vs PT-141

Comparing Kisspeptin and PT-141 across evidence, dosing, mechanisms, and research areas.

vs
Category
hormone
sexualhealth
Molecular weight
5863 g/mol
1025.21 g/mol
Half-life
KP-54: ~28 minutes (IV); KP-10: ~4 minutes (IV)
~2.7 hours
Admin routes
intravenoussubcutaneous
subcutaneousintranasal
Research areas
Reproductive endocrinologyIVF/fertility treatmentHypothalamic amenorrheaPuberty initiationHypogonadismDiabetes/metabolic regulation
Hypoactive sexual desire disorder (HSDD)Female sexual dysfunctionErectile dysfunctionMale sexual arousal disordersMelanocortin system pharmacology
Typical dosing
1–12800 mcg · Variable — single bolus or pulsatile infusion depending on indication · Acute (single dose for IVF trigger) or short-term (days to weeks)
500–2000 mcg · As needed (45 min before activity, max 1 dose/24 hrs) · As needed, max 8 doses/month per FDA labeling
FDA status
Not FDA-approved. Investigational — multiple Phase 2 trials for IVF oocyte maturation and reproductive disorders. Kisspeptin-10 is on FDA's interim Category 2 list — substances FDA has identified as raising significant safety risks and intends to act against in compounding. No lawful compounding route.
FDA-approved as Vyleesi (bremelanotide, 2019) for premenopausal HSDD in women
WADA status
Not currently listed
Not explicitly listed as prohibited
PubMed studies
3,749
114

This comparison is for educational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before using any peptide or supplement.

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