KGF-2 / FGF-7
Keratinocyte Growth Factor
The scalp-specific growth factor for shaft thickness
Overview
Keratinocyte Growth Factor 2 (also known as FGF-7) acts selectively on epithelial cells, making it one of the more targeted peptides for hair. It stimulates keratinocyte proliferation in the outer root sheath, thickens the hair shaft, and has been shown to reduce shedding during the telogen-to-anagen transition.
Mechanism of Action
Binds FGFR2b (a keratinocyte-specific receptor) and activates ERK1/2 and STAT3 signaling. Uniquely, KGF-2 does not stimulate fibroblasts or dermal cells — its action is purely epithelial, making it precise for follicle targeting.
FGFR2b → ERK1/2 + STAT3 in keratinocytes
Key Benefits
Protocol
Dose
1–2 mg
Frequency
Every other day
Duration
12 weeks
Method
Topical solution or subcutaneous scalp injection
Research Evidence
Published Studies
20+
Key Finding
Reduced hair shedding in telogen effluvium model
Source KGF-2 / FGF-7
$52
per vial · research grade
Shop KGF-2 / FGF-7≥98% purity · COA available · Research use only
KGF-2 / FGF-7 is in:
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