Ingredient or product comparison
Best GHK-Cu Dosage Hair Growth 2026: Protocol Comparison
Standard Topical 2–3mg Once daily Liposomal serum Optional, monthly at 0.5mm 16–20 weeks Effective for mild thinning; requires consistent twice-daily application for sustained results Split-Dose Topical 1.5mg per application Twice daily (morning/evening) DMSO
This source-based comparison does not add ratings or recommend a winner.
- Standard Topical
- 2–3mg
- Once daily
- Liposomal serum
- Optional, monthly at 0.5mm
- 16–20 weeks
- Effective for mild thinning; requires consistent twice-daily application for sustained results
- Split-Dose Topical
- 1.5mg per application
- Twice daily (morning/evening)
- DMSO 5% + hyaluronic acid gel
- Weekly at 1.0mm depth
- 12–16 weeks
- Superior receptor engagement; best for moderate androgenic thinning
- Microneedling-Enhanced
- 2mg
- Immediately post-needling, 1x weekly
- Hyaluronic acid 1% gel
- Weekly at 1.0–1.5mm depth
- 10–14 weeks
- Fastest visible response; requires protocol discipline and sterile technique
- Maintenance Protocol
- 3x weekly
- Biweekly at 0.5mm
- N/A (post-plateau only)
- Sustains 70–80% of peak gains; appropriate only after 24+ weeks of daily protocol