Dutasteride vs GHK-Cu Topical
A side-by-side research comparison of Dutasteride and GHK-Cu Topical across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | Dutasteride | GHK-Cu Topical |
|---|---|---|
| Full name | Dutasteride (Avodart) | GHK-Cu Copper Peptide (Topical/Scalp) |
| Category | Hair Growth | Hair Growth |
| Status | FDA Approved (BPH) / Off-label hair loss | Cosmetic / Research compound |
| Mechanism | Inhibits both type I and type II 5-alpha reductase isoenzymes, reducing serum DHT by ~90% and scalp DHT by ~50%. Prevents miniaturization of androgen-sensitive hair follicles in the vertex and frontal scalp. | Activates genes for hair growth including VEGF, FGF, and nerve growth factor at the follicular level. Stimulates dermal papilla cell proliferation. Extends anagen phase via Wnt/β-catenin pathway activation. Delivers copper for lysyl oxidase (collagen cross-linking). |
| Molecular weight | 528.53 Da | 403.92 Da (with Cu) |
| Half-life | ~5 weeks (extremely long) | ~2-4 hours (topical depot at scalp) |
| Bioavailability | ~60% oral | Topical penetration to dermal papilla |
| Typical dose | 0.5 mg | 1-2 mg/mL in scalp solution or serum |
| Frequency | Daily | Daily application |
| Route | Oral capsule | Topical scalp serum or mesotherapy injection |
Dutasteride reported benefits
- Superior DHT suppression vs finasteride
- Hair regrowth and thickening
- Reduced hair miniaturization
- Prostate volume reduction
- Effective for diffuse thinning
GHK-Cu Topical reported benefits
- Follicle stem cell activation
- Increased hair follicle size
- Scalp angiogenesis
- Collagen remodeling in scalp
- Compatible with all other treatments
- Anti-inflammatory for scalp
Related comparisons
Research and educational reference only. Not medical advice.