Kisspeptin: Dosage, Protocol, Benefits & Side Effects

Kisspeptin quick reference

TypeBrain hormone; KISS1R agonist

Studied forIVF egg trigger, missed periods, low desire

EvidenceSmall human studies; not approved

RouteVein, under the skin, nasal (trials)

Half-lifeKP-54 about 28 min in men; KP-10 about 4 min in mice

What is Kisspeptin?

Natural brain signal that switches on the sex-hormone chain.

People use it to lift LH, FSH and testosterone signals.

Tested in people by drip, shot and nasal spray; not approved.

How Kisspeptin works

KISS1R

Binds receptors on GnRH-releasing brain cells.

GnRH release

The brain then signals the pituitary.

LH and FSH

The pituitary releases both; testes or ovaries respond.

Desensitizes

Twice-daily shots for 2 weeks weakened the LH response.

What Kisspeptin is studied for

PeopleIVF egg trigger

One shot matured eggs in 95% of 60 women.

PeopleMissed periods

LH rose after the first shot and faded by day 14.

PeopleMen's hormones

A KP-54 drip raised LH, FSH and testosterone in 6 men.

PeopleLow desire in men

A KP-54 drip changed sexual brain activity and tumescence.

PeopleNasal spray

Raised LH fast in healthy adults (2025).

AnimalsKP-10 vs KP-54

KP-54 sustained LH in mice far longer than KP-10.

Kisspeptin dosing protocol

Study	Amount of kisspeptin-54
Human dose for general use	Not established
IVF egg-maturation trigger, one shot under the skin (60 women, 2015)	3.2 to 12.8 nmol per kg; later trials used 9.6 nmol per kg
Women with missed periods, under the skin twice a day for 2 weeks	6.4 nmol per kg
Nasal spray, healthy adults and women with missed periods (2025)	12.8 nmol per kg
Test dose into a vein, men with and without a hormone-gene disorder (2021)	6.4 nmol per kg

Sources: Abbara 2015 (PMID 26192876), Jayasena 2009 (PMID 19820030), 2025 nasal study (PMID 40215751), Jayasena 2013 (PMID 24030945), 2021 men study (PMID 33227799). Kisspeptin-10 (a shorter form) was given into a vein as 0.3 mcg per kg in one dose, or 4 mcg per kg per hour as an 11-hour drip, in men with type 2 diabetes (PMID 23153270).

IVF TRIGGER (KP-54)9.6 nmol/kg once, under the skinTrial

MISSED PERIODS (KP-54)6.4 nmol/kg twice daily, 2 weeksTrial

NASAL SPRAY (2025)12.8 nmol/kgTrial

MALE DRIP (KP-54)1 nmol/kg/h for 75 minTrial

COMMUNITY RANGE100-200 mcg every other dayCommunity

Label and trial amounts come from the sources below. Community amounts are what people report; they have not been tested.

Mixing

Vial10 mg

BAC water3 mL

Strength3.33 mg per mL

Example only. Trials used KP-54; community vials are often KP-10.

Open the peptide calculator

What the research found

Two human studies of kisspeptin-54 under the skin. IVF trigger, 60 women at high risk of overstimulation (Abbara 2015), and 10 women with missed periods given twice-daily shots (Jayasena 2009):

95%Women whose eggs matured after one kisspeptin shot

45%Live birth per embryo transfer (all doses)

24.0 IU/LPeak LH rise after the first shot (women with missed periods)

2.5 IU/LSame measure on day 14 - the response faded

Abbara A et al. J Clin Endocrinol Metab 2015 (PMID 26192876); Jayasena CN et al. J Clin Endocrinol Metab 2009 (PMID 19820030). The women with missed periods still responded to GnRH, so the pituitary gland still worked.

Kisspeptin community experience

What users report. Not tested in trials.

Positive reports

Libido and mood Some report small lifts in libido, energy or mood.
Upstream appeal It does not replace testosterone itself.
Bloodwork check Labs can show if LH and testosterone moved.

Negative & mixed

Subtle or none Many notice little despite a clear mechanism.
Side effects Headache, flushing, fatigue or nausea reported.
Fades with repeats The response may not hold with repeated dosing.

Kisspeptin stacking

Kisspeptin + enclomiphene

Both lift gonadotropins by different routes. Not studied together.

Kisspeptin + hCG

Brain signal plus testicular signal. Not studied together.

Kisspeptin + PT-141

Hormone axis plus desire pathway. Not studied together.

Kisspeptin side effects & safety

Common

2025 nasal-spray study: no side effects reported.
Response faded with twice-daily shots over 2 weeks.
Healthy women: cycles shortened to 26.8 from 28.6 days.
Headache, flushing, nausea (community).

Less common

FDA: compounded kisspeptin-10 carries immunogenicity risk.
Long-term safety is not established.
No safety data for repeated home use.

Precautions

Not approved; FDA lists kisspeptin-10 on its compounding risk list.
Needs a working pituitary and gonads to respond.
Baseline and follow-up LH, FSH, testosterone and estradiol show if it works.
Repeated dosing weakens the response; long plans are untested.

Our verdict on Kisspeptin

The LH signal is real in specialist-run studies. Home schedules and lasting benefit are untested.

Kisspeptin FAQ

Is kisspeptin approved?

No. It is a research peptide in small human studies.

Kisspeptin-10 or kisspeptin-54?

Most human trials used KP-54. KP-10 clears much faster in mice.

Does it raise testosterone?

A KP-54 drip did in 6 men. Lasting effects are not shown.

Why does the effect fade?

Twice-daily shots for 2 weeks desensitized the response in women.

Sources

Abbara A et al. J Clin Endocrinol Metab 2015, PMID 26192876
Abbara A et al. Hum Reprod 2017 (second dose, 62 women), PMID 28854728
Jayasena CN et al. J Clin Endocrinol Metab 2009, PMID 19820030
Jayasena CN et al. J Clin Endocrinol Metab 2013, PMID 24030945
Intranasal kisspeptin administration rapidly stimulates gonadotropin release in humans, EBioMedicine 2025, PMID 40215751
Kisspeptin-54 in men with congenital hypogonadotropic hypogonadism, Neuroendocrinology 2021, PMID 33227799
George JT et al. / kisspeptin-10 in men with type 2 diabetes, Clin Endocrinol 2013, PMID 23153270
Dhillo WS et al. J Clin Endocrinol Metab 2005 (kisspeptin-54 in men), PMID 16174713
Mills EG et al. JAMA Netw Open 2023 (kisspeptin in men with low desire), PMID 36735255
KP-54 vs KP-10 in vivo (mice), PLoS One 2017, PMID 28464043
FDA, Certain bulk drug substances for use in compounding that may present significant safety risks (content current 04/22/2026)