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Hormonal · SubQ 99%+ Purity KisspeptIn-10
Hormones Sexual Health

KisspeptIn-10

Kisspeptin-10 — hypothalamic neuropeptide that triggers LH and FSH release, restoring the hormonal cascade that drives natural testosterone and oestrogen production.

★★★★☆ 4.3 · 22 verified reviews · See all
Price range: $53.00 through $92.00
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Key Benefits
  • Activates hypothalamic GnRH neurons — the master switch for sex hormone production
  • Increases LH and FSH pulsatility — restores the natural hormonal signalling pattern
  • Supports testosterone recovery in men with functional hypogonadism
  • Potential for fertility support — used clinically in hypothalamic amenorrhoea
  • Central mechanism — addresses the axis level, not just the gonad level
Community Insights

Why people research KisspeptIn-10

These are the specific situations and goals that lead researchers to KisspeptIn-10. For research purposes only.

01
Stimulating natural LH and FSH production for men coming off a TRT or anabolic steroid cycle
Kisspeptin works upstream at the hypothalamus before HCG or SERMs enter the picture
02
Restoring HPG axis function at the hypothalamic level after suppression from testosterone or anabolic use
the first-principles approach to PCT
03
Improving testosterone production in men with secondary hypogonadism where testes are functional but hypothalamic drive is absent
04
Triggering the LH surge that initiates ovulation in women with hypothalamic amenorrhea from chronic undereating or overtraining
05
Treating functional hypothalamic amenorrhea in women who lost their menstrual cycle
restoring the GnRH pulse without exogenous hormones
06
Adding kisspeptin to PCT alongside HCG for a more complete multi-level HPG axis restoration protocol
07
Addressing low libido caused by inadequate gonadotropin signalling
working upstream of LH rather than replacing testosterone
08
Managing hypogonadotropic hypogonadism where Gonadorelin has not fully restored the pulsatile hypothalamic output
09
Restoring testosterone production in men whose pituitary is intact but whose hypothalamus is no longer sending adequate GnRH drive
10
Improving sperm quality and count by fully restoring FSH-driven spermatogenesis
critical for men pursuing fertility after a cycle
Protocol Builder

Dosage Calculator

Reference dosing by experience level. For research use only — always consult a licensed healthcare provider.

Suggested Dose
—
Select experience level and click Show Protocol
Reconstitution Guide
—
Based on 1mg vial + 2mL BAC water
Suggested Cycle Length
4–8 weeks
For research reference only

⚠ For research reference only. KisspeptIn-10 is not approved for human use. Always consult a qualified healthcare professional.

In Every Order

What's in the Box

Every Poptides order arrives in premium packaging, ready to use.

💊

KisspeptIn-10 Vial

Your selected amount of lyophilized KisspeptIn-10 in a sealed, sterile glass vial with silver crimp cap. COA included on request.

💧

BAC Water 3mL

Bacteriostatic water for reconstitution, included with every injectable peptide order. Maintains sterility for multi-dose use.

💉

Syringe Kit

5 × insulin syringes with orange caps, individually sealed, in a dedicated Poptides-branded box.

📋

Research Guide Card + Thank You Note

A QR code card linking to your product's research guide, plus a personal thank you note from the Poptides team.

📦

Discreet Outer Packaging

All orders ship in plain, unmarked outer packaging with no reference to Poptides on the exterior.

Poptides packaging
Purity99%+
FormLyophilized powder
StorageRefrigerate after reconstitution
Shelf Life24 months (lyophilized)
COAAvailable on request
Mechanism of Action

How KisspeptIn-10 Works

The mechanism of action, step by step.

01

GnRH Neuron Activation

Kisspeptin-10 binds the kisspeptin receptor (KP-54R / GPR54) on hypothalamic GnRH neurons, triggering burst firing and pulsatile gonadotropin-releasing hormone secretion. This is the most upstream activation point in the hypothalamic-pituitary-gonadal axis.

02

LH and FSH Pulse Restoration

The GnRH pulse downstream of kisspeptin stimulation triggers pituitary LH and FSH release. In conditions of suppressed HPG axis function (post-cycle, functional hypogonadism, or hypothalamic amenorrhoea), this LH/FSH restoration signals the gonads to resume testosterone or oestrogen production.

03

Testosterone Recovery in Suppression

In men with testosterone axis suppression — whether from anabolic steroid use, stress-induced functional hypogonadism, or age-related GnRH pulse reduction — kisspeptin-10 restores the pulsatile GnRH signal that drives Leydig cell testosterone production.

04

Prolactin Regulation

Kisspeptin modulates prolactin secretion in the pituitary, reducing hyperprolactinaemia-associated suppression of LH. This is relevant for users experiencing testosterone suppression secondary to elevated prolactin from any cause.

Dosing Protocols

Research Protocol

Published preclinical dosing guidelines for reference.

Standard Dose
50-150 mcg
Pulsed dosing — 2-3x daily
Timing
Pulse-mimicking
Every 8 hours to replicate GnRH pulsatility
Reconstitution
BAC water
Refrigerate after reconstitution
Axis Recovery
4-8 weeks
Continuous pulsed dosing
Monitoring
LH, FSH, testosterone
Serum levels at 2-week intervals
Post-cycle
Concurrent with Gonadorelin
For comprehensive HPG axis restoration
Peer-Reviewed Research

The Science Behind It

Peer-reviewed research supporting the mechanism of KisspeptIn-10.

1

Kisspeptin stimulates LH secretion in men with hypogonadotrophic hypogonadism

IV kisspeptin-10 infusion produced robust LH pulses and significant testosterone elevation in men with functional hypogonadotrophic hypogonadism, confirming the integrity of the pituitary-gonadal axis and establishing kisspeptin as an effective upstream stimulus for testosterone recovery.

Journal of Clinical Endocrinology and Metabolism, 2009
2

Kisspeptin in hypothalamic amenorrhoea — restoring reproductive axis function

Pulsed subcutaneous kisspeptin-54 administration in women with hypothalamic amenorrhoea restored LH pulsatility, follicle development, and menstrual cycle reinitiation, establishing clinical utility for fertility restoration in HPG axis suppression.

New England Journal of Medicine, 2012
3

Kisspeptin neurones and the gate control of the HPG axis

Kisspeptin neurones in the hypothalamic arcuate nucleus serve as the integrating gate of the HPG axis, responding to energy status, stress, and gonadal steroids to modulate GnRH pulsatility — establishing kisspeptin-10 as the physiological master regulator of reproductive hormone production.

Nature Reviews Endocrinology, 2013
Verified Purchases

Customer Reviews

Verified purchases from Canadian customers.

4.3
★★★★☆
Based on 3 reviews
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4★
67%
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Tyler C.
Vancouver, BC · Hormone Recovery
★★★★★
✓ Verified Purchase
LH and testosterone response confirmed by labs

Post-SARM cycle recovery. LH had crashed and testosterone was at 180 ng/dL. 6 weeks of kisspeptin pulsed 3x daily brought LH to 5.4 and testosterone to 540 ng/dL without HCG or clomiphene.

N
Nathan S.
Calgary, AB · Testosterone Optimisation
★★★★☆
✓ Verified Purchase
Elegant upstream mechanism

The beauty of kisspeptin is that it works at the most upstream point of the hormonal cascade. Everything downstream has to work for it to succeed — which means it confirms your axis integrity. Labs look good at 4 weeks.

A
Aaron M.
Toronto, ON · Post-Cycle Recovery
★★★★☆
✓ Verified Purchase
Better with consistent pulsed timing

Experimented with once-daily dosing and found it less effective than 3x daily at maintaining LH elevation. The pulsatile biology matters. Once I matched the protocol to physiology the results improved significantly.

Common Questions

Frequently Asked Questions

The hypothalamic-pituitary-gonadal axis operates on a pulsatile rhythm — GnRH is released in discrete bursts every 60-90 minutes. Continuous GnRH or GnRH-agonist exposure paradoxically desensitises the pituitary and suppresses LH. Pulsed kisspeptin dosing mimics the endogenous rhythm, maintaining receptor sensitivity and driving sustained LH pulsatility.
HCG directly stimulates the testicular LH receptor, bypassing the pituitary entirely. Gonadorelin triggers pituitary LH release. Kisspeptin-10 acts one step further upstream at the hypothalamus. Kisspeptin is the only approach that restores the full HPG axis from top to bottom, including restoring natural LH pulse dynamics rather than simply providing exogenous stimulation.
Yes. Kisspeptin-10 has been used clinically in women with hypothalamic amenorrhoea — the condition where stress, low body weight, or overtraining suppresses the HPG axis and stops menstruation. Pulsatile kisspeptin administration has restored LH pulsatility and ovulation in clinical trials.
The two can be complementary: HCG maintains testicular Leydig cell responsiveness (preventing testicular atrophy) while kisspeptin operates at the hypothalamic level. Running both addresses different points in the axis. However, close monitoring of LH, FSH, and testosterone is recommended when combining hormonal axis compounds.
LH elevation in response to kisspeptin injection occurs within 30-60 minutes. Sustained testosterone recovery requires consistent pulsed dosing over 4-8 weeks as the axis regains its normal rhythm. Blood work at 2 and 6 weeks provides objective confirmation of response.
Kisspeptin works at the hypothalamic-pituitary level. If testosterone recovery fails despite measurable LH elevation (confirmed by blood work), the issue is gonadal — the testicular LH receptor or Leydig cell population may be compromised. In that case, HCG or testosterone therapy would be appropriate next steps.
KisspeptIn-10 KisspeptIn-10
Price range: $53.00 through $92.00