Comparison · Updated
Kisspeptin-10 VS Oxytocin
Short answer
Oxytocin has stronger published evidence than Kisspeptin-10: tier S (Approved) vs tier A (Controlled human trials).
Kisspeptin-10 is not FDA-approved; Oxytocin is FDA-approved (Pitocin).
Kisspeptin-10 is prohibited in sport by WADA under section S2 (males); Oxytocin is not on the WADA Prohibited List.
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Side by side
| Field | Kisspeptin-10 | Oxytocin |
|---|---|---|
| Evidence tier | A Tier A · Controlled human trials | S Tier S · Approved |
| Tier rationale | A small randomized, single-blind, placebo-controlled study in healthy men (2026) plus several controlled physiology studies showing it raises LH. Not approved for any use. | FDA-approved injectable drug (Pitocin and generics) used in obstetrics. Intranasal use for social or psychiatric effects is investigational. |
| FDA status | Not approved | Approved PitocinApproved to induce or strengthen uterine contractions and to control bleeding after delivery. |
| Other approvals | None listed | None listed |
| WADA | Prohibited · S2 (males)Peptide hormones, growth factors, related substances and mimetics | Not on the Prohibited List |
| Family | Hormones & Drive | Hormones & Drive |
| Residues | 10amino acids | 9amino acids |
| Molecular weight | 1,302.4 Da | 1,007.2 Da |
| Formula | C63H83N17O14 | C43H66N12O12S2 |
| Discovered | Not on file | 1953Vincent du Vigneaud determined its structure and synthesized it, the first polypeptide hormone ever synthesized (Nobel Prize in Chemistry, 1955). |
| Routes studied | Subcutaneous, Intravenous | Intranasal, Subcutaneous, Intravenous |
| Mechanism | Kisspeptin-10 is the minimal active fragment of the kisspeptin family that binds the KISS1R (GPR54) receptor on hypothalamic GnRH neurons. This activation triggers GnRH pulse release into the portal circulation, which subsequently stimulates pituitary gonadotrophs to secrete LH and FSH, making kisspeptin the master upstream regulator of the reproductive axis. | Oxytocin is a nine-amino-acid neuropeptide synthesized in hypothalamic paraventricular and supraoptic nuclei that binds the oxytocin receptor (OXTR), a Gq-coupled GPCR. In the brain, it modulates amygdala reactivity and promotes social approach behavior. |
| Safety notes | Studied only in small controlled research settings. | FDA-approved (Pitocin) for labor induction with well-established safety profile. |
| Cited studies | 2 studies | 1 study |
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Questions
- Which has stronger evidence, Kisspeptin-10 or Oxytocin?
- Oxytocin has stronger published evidence than Kisspeptin-10: tier S (Approved) vs tier A (Controlled human trials). Kisspeptin-10: A small randomized, single-blind, placebo-controlled study in healthy men (2026) plus several controlled physiology studies showing it raises LH. Not approved for any use. Oxytocin: FDA-approved injectable drug (Pitocin and generics) used in obstetrics. Intranasal use for social or psychiatric effects is investigational. Tiers rate the strength of published evidence, not effectiveness.
- Is Kisspeptin-10 FDA-approved?
- Kisspeptin-10 is not FDA-approved.
- Is Oxytocin FDA-approved?
- Oxytocin is FDA-approved (Pitocin). Approved to induce or strengthen uterine contractions and to control bleeding after delivery.
- Are Kisspeptin-10 and Oxytocin banned in sport?
- Kisspeptin-10 is prohibited in sport by WADA under section S2 (males); Oxytocin is not on the WADA Prohibited List.
- How do Kisspeptin-10 and Oxytocin work?
- Kisspeptin-10 is the minimal active fragment of the kisspeptin family that binds the KISS1R (GPR54) receptor on hypothalamic GnRH neurons. Oxytocin is a nine-amino-acid neuropeptide synthesized in hypothalamic paraventricular and supraoptic nuclei that binds the oxytocin receptor (OXTR), a Gq-coupled GPCR.