- Usual strength
- 10–20% (L-ascorbic acid); derivatives vary
- Use
- Usually in the morning
- Good with
- Sunscreen, vitamin E, ferulic acid
- Pregnancy
- Generally considered safe
Vitamin C is an antioxidant that helps neutralise some of the damage caused by sunlight and pollution. Used with sunscreen, it adds an extra layer of daily protection.
Benefits
- Antioxidant protection that works alongside sunscreen
- Can brighten dull skin and soften the look of dark spots over time
- Supports the skin's own collagen production
How to use vitamin c
- Apply a few drops to clean skin in the morning, then moisturiser and sunscreen
- Store the bottle closed, away from heat and light
- If the serum turns dark orange or brown, it has oxidised and should be replaced
Precautions
- Pure L-ascorbic acid can sting, especially on sensitive skin; derivatives are gentler
- Do not apply on broken or freshly treated skin unless your doctor advises it
- It does not replace sunscreen
Who is it suitable for?
Suits most skin types. Sensitive skin may prefer a lower strength or a derivative such as sodium ascorbyl phosphate or ascorbyl glucoside.
Patch test first. Apply a small amount behind the ear or on the inner arm once a day for a few days. If you notice redness, burning, itching or swelling, do not use the product, and see a dermatologist if the reaction does not settle.
Common questions
Will vitamin C remove pigmentation?
It can help mild unevenness. Conditions such as melasma or deep pigmentation usually need a dermatologist's treatment plan along with strict sun protection.
This guide is for general education and is not medical advice. If you are pregnant, breastfeeding, using prescription treatment or have a skin condition, ask your dermatologist before starting a new active ingredient.