Vitamin C serum is a popular skincare product. Used well, it can support brighter-looking skin as part of a simple routine. It is not suitable for absolutely everyone, and it will not suit every skin type equally.
How to use it
- Apply to clean, dry skin, following the product’s own instructions.
- Start slowly — for example, a few times a week — and build up only if your skin tolerates it.
- Follow with moisturiser, and use sunscreen during the day.
- It can be used on oily skin; choose a light serum texture that does not feel heavy.
Side effects of vitamin C serum
Vitamin C serum is generally well tolerated, but side effects are possible. Mild stinging, redness or irritation can occur, especially at higher strengths or on sensitive skin. No product can be promised to cause no harm for everyone.
- Patch-test first: apply a small amount to a small area and wait to see how your skin reacts before using it on your whole face.
- If stinging or redness persists, use it less often, try a lower strength, or stop using it.
- Stop and seek advice if you develop a rash, swelling or severe irritation.
Storage: watch for oxidation
Vitamin C serum oxidises with air and light. Over time an oxidised serum turns dark yellow or orange and becomes less effective. Store the bottle tightly closed, away from light and heat, and replace it if it changes colour or smell noticeably.
If you have a skin condition, very sensitive skin, or ongoing acne or pigmentation problems, a dermatologist can advise whether a vitamin C serum is right for you.
This article is general information only and is not medical advice. Please consult a healthcare professional for personal advice.