GHK-Cu vs SNAP-8

Name: GHK-Cu vs SNAP-8
Published: 2026-10-24

Updated Oct 24, 20268 sources

Key differences

1SNAP-8 targets expression lines from muscle movement. GHK-Cu targets collagen, firmness and repair.
2Guides rate GHK-Cu's skin-repair evidence as stronger. SNAP-8 only appears in multi-ingredient patch and serum studies.

Facts from each record, in the same words as their own pages.

GHK-Cu and SNAP-8 side by side
	GHK-Cu	SNAP-8
Category	Skin & hair, Healing & recovery	Skin & hair
Evidence	Limited human data	Limited human data
FDA status	Not FDA approvedRegulatory	Not FDA approvedRegulatory
WADA	Not confirmed	Not confirmed
Half-life	Not measured in humans. Rat IV work shows fast breakdown to His-Lys, within minutes to a couple of hours. The 30-minute to 4-hour figures online have no source.Competitor guide	Not established. It is used mainly on the skin, and no study has measured it in blood.Competitor guide
Routes	Subcutaneous injection	Topical, Subcutaneous injection
Forms	Vial (powder), Topical	Topical, Vial (powder)
Reported doses	0.5 to 3 mg (subcutaneous injection) 15 to 30 mcg/kg (subcutaneous injection) 200 to 500 mcg (subcutaneous injection)	0.0015 to 10% (topical) 200 to 300 mcg (topical) 50 to 1,000 mcg (subcutaneous injection)
Most cited frequency	Once daily	Twice daily
Vial sizes	50 mg, 100 mgCompetitor guide	10 mgCompetitor guide
Mixed vial keeps	Fridge at 2 to 8 C, dark, not frozen.Competitor guide	Fridge at 2 to 8 C.Competitor guide
Protocols on file	11	7

Doses shown are what sources report, labelled by origin. Not medical advice.

8 sources, each checked by date. Record updated Oct 24, 2026. Numbers are restated in our own words and labelled by where they came from.