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Best Peptides for Female Hair Thinning: Compound Comparison
GHK-Cu Copper chelation, MMP modulation, collagen remodeling Topical 2–3mg/mL twice daily 12% increase in follicle density, 18% increase in shaft diameter (24 weeks, Dermatologic Therapy 2023) Best for localized androgenetic alopecia with visible miniaturizati
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- GHK-Cu
- Copper chelation, MMP modulation, collagen remodeling
- Topical
- 2–3mg/mL twice daily
- 12% increase in follicle density, 18% increase in shaft diameter (24 weeks, Dermatologic Therapy 2023)
- Best for localized androgenetic alopecia with visible miniaturization. Direct follicle-level action without systemic exposure
- Thymosin Beta-4
- VEGF upregulation, angiogenesis, dermal papilla activation
- Subcutaneous
- 2–5mg twice weekly
- 25% faster regrowth post-depilation in rodent models; increased capillary density in treated dermis
- Most effective for diffuse thinning related to poor scalp circulation or chronic telogen effluvium
- MK-677 (Ibutamoren)
- GH secretagogue, systemic IGF-1 elevation, anagen prolongation
- Oral or subcutaneous
- 10–25mg daily
- 60–90% increase in serum IGF-1; subjective hair thickness improvement in metabolic syndrome cohort
- Systemic approach. Ideal for research models where multiple tissues benefit from elevated IGF-1 (hair, skin, muscle)
- GHRP-2
- GH pulse stimulation, IGF-1 elevation
- 100–300mcg twice daily
- Limited human hair-specific data; rodent models show anagen extension correlated with IGF-1 receptor density
- Alternative to MK-677 for injectable protocols; shorter half-life requires twice-daily dosing