PT-141

Metabolic Peptides

Also known as: Bremelanotide, Vyleesi

A synthetic peptide derived from Melanotan II, researched for its effects on sexual function through central nervous system pathways.

Dose in studies
1-2 mg as needed (30-60 min before activity)
Frequency
As needed, at least 24h between doses
Cycle length
As needed, no cycling required
Half-life
~2-4 hours
Research level
4/5 – Well researched

PT-141 dosage chart

Frequently asked questions about PT-141

What is PT-141?

A synthetic peptide derived from Melanotan II, researched for its effects on sexual function through central nervous system pathways.

What is the half-life of PT-141?

The half-life of PT-141 is ~2-4 hours.

What dosage of PT-141 has been studied?

Described in research: 1-2 mg as needed (30-60 min before activity), frequency: As needed, at least 24h between doses. This is not a medical recommendation.

How long is a PT-141 cycle?

Typical cycle length in studies: As needed, no cycling required.

What are the side effects of PT-141?

Nausea: The most common side effect, affecting 30-40% of users. Usually mild and transient (30-60 minutes). Anti-nausea medication (ondansetron) before dosing can help. Severity decreases with repeated use. · Facial flushing: Warmth and redness of the face lasting 1-3 hours. Harmless but cosmetically noticeable. More pronounced with higher doses. · Headache: Moderate headache in ~15% of users.…

How well researched is PT-141?

Well researched (4/5). Large phase 3 trials or regulatory approval; long-term data still limited.

Comparisons