Kisspeptin-10 vs Alpha-GPC
Side-by-side comparison of key properties, dosing, and research.
Sexual Health & LibidoAnti-Aging & Longevity
Kisspeptin-10Cognitive Enhancement
Alpha-GPC- Summary
- Kisspeptin-10 is the biologically active C-terminal decapeptide of kisspeptin, an endogenous regulator of the reproductive axis. It acts upstream of GnRH to potently stimulate LH and testosterone release, and plays a key role in sexual arousal and libido.
- Alpha-GPC is the most bioavailable form of choline, readily crossing the blood-brain barrier to rapidly increase acetylcholine levels. It enhances cognitive performance, supports GH secretion, and is used as an essential complement to many nootropic peptides (especially those that increase acetylcholine demand like Noopept and Dihexa).
- Half-Life
- ~4 minutes (rapidly degraded); longer-acting analogs like TAK-448 are in development
- ~4–6 hours
- Admin Route
- SubQ, IV
- Oral, SubQ
- Research
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- Typical Dose
- 50–500 mcg
- 300–600 mg
- Frequency
- Once daily to every other day
- 1–2x daily
- Key Benefits
- Potently stimulates LH and testosterone
- Enhances sexual arousal and libido
- Activates HPG axis — upstream of GnRH
- May improve fertility in hypogonadotropic hypogonadism
- Increases brain activation in sexual attraction circuits
- May restore LH pulsatility in suppressed HPG axis
- Rapidly raises brain acetylcholine levels
- Enhances memory formation and recall
- Prevents headaches from nootropic peptides (choline donor)
- Stimulates growth hormone secretion (modest)
- Improves attention and processing speed
- Neuroprotective in Alzheimer's and cognitive decline
- Approved in Europe for Alzheimer's therapy
- Enhances power output in athletes (pre-workout)
- Side Effects
- Injection site reactions
- Temporary nausea
- Flushing
- Elevated LH/testosterone (intended effect)
- +1 more
- Headache (paradoxically, from excess acetylcholine at very high doses)
- Nausea at doses > 1200 mg
- Dizziness
- Fatigue at high doses
- +1 more
- Stacks With
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