Ingredient or product comparison
GHK-Cu Anti-Aging Results: Delivery Method Comparison
Topical (serum, cream) 12–18% (up to 30% with microneedling) 10–12 weeks 5–6 months No Best for users prioritizing convenience over speed. Results take longer but require no injection skill Subcutaneous injection 95–98% 6–8 weeks 4–5 months Yes Fastest timelin
This source-based comparison does not add ratings or recommend a winner.
- Topical (serum, cream)
- 12–18% (up to 30% with microneedling)
- 10–12 weeks
- 5–6 months
- No
- Best for users prioritizing convenience over speed. Results take longer but require no injection skill
- Subcutaneous injection
- 95–98%
- 6–8 weeks
- 4–5 months
- Yes
- Fastest timeline and highest efficacy, but demands sterile prep and injection competence
- Transdermal patch (liposomal)
- 20–25%
- 9–11 weeks
- Moderate bioavailability with sustained release. Middle ground between topical and injectable
- Oral supplementation
- <5%
- No measurable effect
- Not applicable
- Pharmacokinetically non-viable. Gastric degradation prevents dermal delivery