Sexual health / hormones
Kisspeptin
A hypothalamic neuropeptide (product of the KISS1 gene) that sits at the top of the reproductive axis, stimulating GnRH release and downstream LH/FSH. Has the best human research base of the newer 'libido' peptides, including controlled studies on reproductive hormones and sexual brain processing.
Common doses
| Indication | Route | Dose | Duration | Evidence |
|---|---|---|---|---|
| Reproductive-axis stimulation / sexual function (clinical research) | SC injection / infusion | Used in controlled research settings; no consumer-standard dose | Experimental | Tier 3 |
What the community reports — Kisspeptin
distilled from 2 Reddit postsReddit users report kisspeptin-10 via intranasal or SubQ routes; one user reported testosterone increases over one year.
- Route
- intranasal spray,subcutaneous injection
Limitations · Who should NOT use this
Although kisspeptin has stronger human research than most 'libido' peptides — including randomized studies on hormone response and sexual brain processing — that research is largely mechanistic and short-term, not approval-grade efficacy/safety for self-directed use. Self-dosing gray-market kisspeptin for libido is not the same as the controlled clinical contexts studied. Effects on the reproductive axis warrant caution; not for use in pregnancy or with hormone-sensitive conditions without medical guidance.
Regulatory notes
Not FDA-approved, but unusually well-studied in human clinical research (Imperial College London and others) for reproductive endocrinology and sexual function. Investigational; available through research-chemical channels for non-clinical use. No approved consumer product.
Verify what's actually in your Kisspeptin vial
Gray-market peptide vials vary widely on identity, purity, and labeled concentration. Finnrick is an independent testing platform that ships consumer-submitted samples to commercial labs and publishes every result in a free public database. Vendors cannot pay for placement or to suppress a result. We don't operate Finnrick — we link to it because post-purchase verification is the right complement to pre-purchase clinical evidence.
Finnrick is independent; we receive no compensation for this link. US-resident free testing as of May 2026.
Sources
- Dhillo WS, et al. Kisspeptin-54 stimulates the hypothalamic-pituitary-gonadal axis in human males. J Clin Endocrinol Metab 2005;90(12):6609-6615.
- Comninos AN, et al. Kisspeptin modulates sexual and emotional brain processing in humans. J Clin Invest 2017;127(2):709-719.
- George JT, et al. Kisspeptin-10 stimulates the hypothalamic-pituitary-gonadal axis. J Clin Endocrinol Metab 2011.
What Reddit users report — Kisspeptin
Best-rated real posts mentioning Kisspeptin, summarized with a short quote in the poster’s own words. Of these: 2 worked. Anecdotal community signal — not evidence, not medical advice, and not endorsement.
- ✓ Workedr/Peptides
51-year-old male reports total testosterone increased 59% and free testosterone 35% after one month of kisspeptin-10, with most other markers relatively stable.
“I've been taking kisspeptin-10 for the last month. I think it could actually be higher, but I still need to work on improving sleep quality and lowering my fasting glucose.”
— u/Phow-Ji · read on Reddit ↗ - ✓ Workedr/Peptides
Poster is recruiting 5-10 subjects for a kisspeptin-10 study comparing intranasal spray and subcutaneous routes, targeting males with ED or infertility.
— u/Altruistic-Wait2611 · read on Reddit ↗
Posts are pulled from public Reddit threads and summarized for context. Individual experiences vary widely and don’t predict your own results. Always consult a qualified clinician.
Community signal — Kisspeptin
Recent posts and videos mentioning Kisspeptin from the cron-ingested Reddit + X pipelines and the curated /experts directory. Not endorsement — directional context only.
- X· Peptide Confessions@pepfessions♥ 7 · 21h ago
I am a 44yr old man, i have been taking Kisspeptin every night for a few weeks now and I can categorically say that i di
- X· CryptoDaddi@TheCryptoDaddi♥ 171 ↻ 8 · 3d ago
My peptide tier list: S TIER : Retatrutide - this goes without saying Reta at the top. Arguably the most effective pe
- X· CryptoDaddi@TheCryptoDaddi♥ 296 ↻ 32 · 4d ago
Here’s a quick reference guide to almost all of the popular peptides within the researcher/biohacking sphere: REPAIR, R
No curated experts have Kisspeptin tagged in their peptideAreas yet.
No YouTube videos mentioning Kisspeptin in our index yet. The YouTube RSS cron pulls every 6 hours.
Community experiences
0 approved · moderatedFirst-hand accounts from readers who've used Kisspeptin. These are personal anecdotes, not clinical evidence or medical advice — every post is reviewed before it appears.
Community Notes
0 approved · moderated
Structured notes from readers — context, citations, corrections, and first-hand experience. Every note is moderated before it appears. Notes do not replace medical review; they supplement it.
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