A powerful neuropeptide that sits at the very top of the reproductive hormone axis. It signals the brain to release GnRH, which then triggers LH and FSH. Emerging as a modern alternative to HCG for men on TRT trying to maintain fertility.
What is this used for?
What dose is typical for your goal?
- Typical dose
- 100–200 mcg
- How it's taken
- Injection under the skin
- How often
- Daily or as needed
- Most common starting point
- 100 mcg daily
Based on published studies and what providers typically prescribe.
These are typical doses from research and real prescriptions — not a recommendation for you specifically. Your provider will adjust based on your body, your goals, and your health history.
Want your exact dose? A provider will personalize this for you.
Find a ProviderHow do you take it?
These are typical doses from research and real prescriptions — not a recommendation for you specifically. Your provider will adjust based on your body, your goals, and your health history.
Can this be combined with other peptides?
How well researched is this?
Strong Animal & Lab Research
Strong clinical data in human fertility studies and behavioral neuroscience. Extensively studied at institutions like Imperial College London.
Legal status
Currently restricted by the FDA and cannot be legally compounded. This status may change — we'll update this page when it does.
2026 reclassification status updates coming soon.
Purity
Purity measures how clean and accurate the compound is. Higher purity means fewer contaminants and more reliable dosing.
HPLC Purity Tested
Always require a Certificate of Analysis (CoA) from a US-based compounding pharmacy.
Common questions
Ready to start?
Consult with a licensed provider to determine the right protocol for your goals.