What it is
Healthy skin naturally stores high levels of vitamin C. It is an antioxidant that helps neutralise free radicals created by UV light and pollution, and it is an essential helper for the enzymes that build collagen. Levels tend to be lower in aged and sun-damaged skin.
What it does for skin
- Helps protect against environmental stress when worn under sunscreen (it does not replace sunscreen).
- Supports the skin's own collagen production.
- Brightens and helps fade uneven pigmentation over time.
How to use it
Pure L-ascorbic acid is the most studied form but it is fragile and needs a carefully made formula to reach the skin. Derivatives are more stable but usually gentler. Use in the morning, before sunscreen. Keep the bottle closed, cool and away from light.
Pairs well with
Good to know
Can tingle, especially on sensitive skin. A serum that has turned dark orange or brown has oxidised and is less effective.
Sources
- Pullar JM, Carr AC, Vissers MCM. The Roles of Vitamin C in Skin Health. Nutrients, 2017.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5579659/
This guide is for general education and is not medical advice. If you have a skin condition, are pregnant, or are unsure whether an ingredient is right for you, please talk to a dermatologist or doctor.