Vitamin C in Skincare
Vitamin C in Skincare — a potent antioxidant that protects skin from free-radical damage, supports collagen synthesis and brightens uneven tone. L-ascorbic acid is the most researched form, though gentler derivatives exist for sensitive skin.
Key points
- Used in the morning, it complements sunscreen by neutralising UV-generated free radicals.
- It helps fade hyperpigmentation and boosts collagen for firmer, more radiant skin.
- L-ascorbic acid is effective but unstable — look for opaque, air-tight packaging and store away from light and heat.
- Derivatives such as sodium ascorbyl phosphate or magnesium ascorbyl phosphate are milder and more stable but generally less potent.
Frequently asked
When should I apply vitamin C?
Most people use it in the morning under sunscreen for antioxidant protection, though it also works at night; consistency matters more than the exact time.
Can you use vitamin C and retinol together?
Yes, though many prefer vitamin C in the morning and retinol at night to minimise irritation and keep each ingredient in its ideal environment.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
