Ingredient or product comparison
Best Peptides to Grow Hair Back Ranked: Mechanism Comparison
GHK-Cu TGF-beta inhibition, follicle stem cell activation Topical (1–2mg/ml) 22% anagen phase extension in organ culture 12–16 weeks for measurable density change First-line for pattern hair loss with viable miniaturised follicles. Works only if stem cells rem
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- GHK-Cu
- TGF-beta inhibition, follicle stem cell activation
- Topical (1–2mg/ml)
- 22% anagen phase extension in organ culture
- 12–16 weeks for measurable density change
- First-line for pattern hair loss with viable miniaturised follicles. Works only if stem cells remain active
- TB-500
- Angiogenesis, capillary density increase in dermal papilla
- Subcutaneous (2–5mg twice weekly)
- 32% increase in dermal capillary density over 8 weeks
- 16–20 weeks for structural improvement
- Best for improving follicle diameter and vascular support. Requires injection, not topical
- BPC-157
- Cytokine modulation, accelerated anagen re-entry post-telogen effluvium
- Subcutaneous (250–500mcg daily)
- 40% reduction in telogen effluvium duration in case series
- 6–10 weeks for shedding to slow
- Most effective for acute stress-related shedding. Not for chronic pattern loss