Sexual HealthEarly research

Kisspeptin-10

Kisspeptin-10 (Metastin 45-54)

AI explanation

Kisspeptin-10 is a tiny but powerful peptide that acts like your body's natural fertility switch. People are studying it as a potential treatment for reproductive problems, low testosterone, and infertility because it works with your body's existing hormone system rather than replacing it entirely.

Think of your reproductive hormones like a chain reaction that starts in your brain. Kisspeptin-10 is essentially the first domino that kicks off this entire cascade. When you take it, the peptide travels to a specific area in your brain called the hypothalamus, where it finds special receptors designed just for it - like a key finding its perfect lock.

Once kisspeptin-10 connects with these receptors, it tells your brain to release another hormone called GnRH, which then travels down to your pituitary gland. Your pituitary responds by pumping out two more hormones that signal your reproductive organs to start producing testosterone or estrogen. It's like sending a message down a telephone line where each station passes the signal along until it reaches the final destination.

What makes kisspeptin-10 special is that it's the shortest version that still packs the full punch - imagine having all the power of a longer molecule compressed into just ten building blocks. This natural approach essentially jump-starts your own hormone production rather than flooding your system with artificial replacements.

Dosage Information

Typical Dose

0.3-10 nmol/kg IV in clinical studies. Research protocols vary widely.

Frequency

Pulsatile dosing required to maintain HPG axis sensitivity

Morning

Administration

Intravenous (clinical trials) or subcutaneous/intranasal (research)

Half-Life

4 minutes

Notes

Continuous administration causes receptor desensitization — pulsatile dosing is essential. Clinical trial data primarily from IV administration. Subcutaneous research protocols are less well characterized.

Why this matters

Shortest kisspeptin fragment; used in research for pulsatile GnRH stimulation.

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Concentration: 2,500 mcg/mL

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Where does Kisspeptin-10 sit?

See how this peptide compares across all 150 peptides in our database.

Evidence Score

0.11

Clinical trials
0.0035%
Literature
0.0030%
Community
0.0020%
Completeness
0.7515%

Compound Data

Kisspeptin-10 structure

Molecular Formula

C63H83N17O14

Molecular Weight

1302.40 g/mol

IUPAC Name

(2S)-N-[(2S)-1-[[(2S)-4-amino-1-[[(2S)-1-[[(2S)-1-[[2-[[(2S)-1-[[(2S)-1-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-5-(diaminomethylideneamino)-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-2-oxoethyl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-1,4-dioxobutan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]butanediamide

PubChem CID

25240297

Potential Side Effects

Flushing (common with IV administration)Nausea (uncommon)Headache (uncommon)Potential for desensitization with continuous use
Pep Talk

Kisspeptin-10 discussions

Quick Facts

Administration
Intravenous (clinical trials) or subcutaneous/intranasal (research)
Typical Dose
0.3-10 nmol/kg IV in clinical studies. Research protocols vary widely.
Frequency
Pulsatile dosing required to maintain HPG axis sensitivity
References
0 curated + 0 from PubMed
Evidence Score
0.1 / 100

Frequently Asked Questions about Kisspeptin-10

What is Kisspeptin-10?

Kisspeptin-10 is the shortest bioactive fragment of the kisspeptin family — a 10-amino-acid peptide that retains the full receptor-activating potency of longer kisspeptin forms. As the master regulator of the hypothalamic-pituitary-gonadal axis kisspeptin-10 stimulates GnRH release triggering LH and FSH secretion and downstream sex hormone production. It has been studied in clinical trials for hypogonadism infertility and as a potential treatment for reproductive disorders offering a physiologically targeted approach to hormonal restoration.

How does Kisspeptin-10 work?

Kisspeptin-10 acts on kisspeptin receptors (KISS1R also called GPR54) in GnRH neurons of the hypothalamus triggering pulsatile GnRH release. GnRH then stimulates pituitary LH and FSH secretion which drives gonadal testosterone and estrogen production. Kisspeptin signaling is the essential upstream trigger for puberty and reproductive function — mice lacking kisspeptin or KISS1R are infertile. The 10-amino acid fragment Kp-10 retains full KISS1R binding affinity and is the minimum sequence required for receptor activation. In clinical studies intranasal Kisspeptin-10 has stimulated LH pulses and testosterone secretion in men with hypogonadotropic hypogonadism offering a potential alternative to exogenous hormone administration that preserves the physiological HPG axis.

What is the recommended dosage for Kisspeptin-10?

The typical dose is 0.3-10 nmol/kg IV in clinical studies. Research protocols vary widely.. Pulsatile dosing required to maintain HPG axis sensitivity. Administration: Intravenous (clinical trials) or subcutaneous/intranasal (research). Continuous administration causes receptor desensitization — pulsatile dosing is essential. Clinical trial data primarily from IV administration. Subcutaneous research protocols are less well characterized.

What are the side effects of Kisspeptin-10?

Flushing (common with IV administration). Nausea (uncommon). Headache (uncommon). Potential for desensitization with continuous use

Questions reflect common community inquiries. This is not medical advice.