How to Introduce Vitamin C
How to Introduce Vitamin C — a step-by-step approach to adding a vitamin C antioxidant serum to a routine for its role in brightening, supporting collagen, and defending against environmental stress, while minimizing the tingling or irritation some formulas can cause. It usually involves starting at a lower concentration, using it in the morning, and pairing it with sunscreen.
Key points
- Vitamin C is an antioxidant that can help brighten the appearance of skin, support collagen, and provide added defense against free radical damage.
- Starting with a lower concentration and building up can reduce the risk of tingling or irritation, especially with potent forms like L-ascorbic acid.
- It is commonly applied in the morning under sunscreen, where its antioxidant activity can complement UV protection.
- Vitamin C formulas can be sensitive to air and light and may oxidize over time, so airtight or opaque packaging and proper storage help preserve potency.
Frequently asked
Should I use vitamin C in the morning or at night?
Many people apply vitamin C in the morning to pair its antioxidant benefits with daytime sunscreen, though it can also be used at night; consistency matters more than the exact time.
Can I use vitamin C with retinol?
They can be used together in a routine, but some people find the combination irritating and choose to use vitamin C in the morning and retinol at night to minimize sensitivity.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
