Ingredient comparison
GHK-Cu vs Vitamin C (LAA): which one is right for your skin?
Short answer: Both earn their place. GHK-Cu is the kinder pick if your skin reacts easily, otherwise it comes down to preference. And if you are pregnant, GHK-Cu is the safer one to reach for.
| Compared | GHK-Cu | Vitamin C (LAA) |
|---|---|---|
| Potency | Lower | Higher |
| Evidence | moderate evidence | strong evidence |
| Irritation risk | Low | Moderate |
| Clogs pores | Low | Low |
| In pregnancy | Considered safe | Ask your doctor |
| pH-dependent | No | Needs the right pH |
| On a label | usually effective at 0.01-0.1% | Not usually disclosed |
So which should you pick?
Choose GHK-Cu if
- your skin is sensitive or reacts easily
- you would rather it just work, without depending on the product being at the right pH
- you are pregnant and want the clearly safe choice, since Vitamin C (LAA) is one to clear with your doctor first
Choose Vitamin C (LAA) if
- dark spots, dullness or an uneven tone are what you want to work on
- you want the pick with the most research behind it
The honest bottom line: Both earn their place. GHK-Cu is the kinder pick if your skin reacts easily, otherwise it comes down to preference. And if you are pregnant, GHK-Cu is the safer one to reach for.
Pregnancy: GHK-Cu is considered pregnancy-safe, while Vitamin C (LAA) is one to clear with your doctor first.
Better for your concern
- Dark spots and uneven toneVitamin C (LAA)
- Fine lines and firmnessEither
- Sensitive, reactive skinGHK-Cu
Based on their scores in the knowledge base. "Either" means both hold their own for that goal.
GHK-Cu vs Vitamin C (LAA), answered
Which is stronger, GHK-Cu or Vitamin C (LAA)?
Vitamin C (LAA) is the more potent of the two, with the higher efficacy score. GHK-Cu is the lighter option.
Is GHK-Cu or Vitamin C (LAA) better for sensitive skin?
GHK-Cu is the gentler choice for sensitive, reactive skin (low irritation risk, versus moderate for Vitamin C (LAA)).
Can you use GHK-Cu and Vitamin C (LAA) together?
They have a known interaction. See our can-you-mix page for the verdict and how to use them.
General guidance, not medical advice. Read the full pages on GHK-Cu and Vitamin C (LAA).