Can you use Vitamin C with Sunscreen?
Yes. Vitamin C under sunscreen is one of the best-supported morning combinations.
Why
Sunscreen blocks most UV, and vitamin C helps neutralize the free radicals that still form. They do different jobs, which is why dermatologists often recommend a vitamin C serum under daily SPF. Vitamin C does not replace sunscreen.
How to use them together
- Apply Vitamin C as directed (if it is a night-time active, use it in the PM).
- In the morning, finish your routine with a broad-spectrum SPF 30 or higher as the last skincare step.
- Reapply every two hours when outdoors.
Who should be careful
Anyone using retinoids or acids should treat daily sunscreen as non-negotiable. If a sunscreen stings over freshly applied actives, wait a few minutes or switch to a mineral formula.
About the ingredients
Vitamin C: An antioxidant (L-ascorbic acid and derivatives) used for brightening and protection against UV-related oxidative stress. Pure L-ascorbic acid serums are acidic and can sting.
Sunscreen: Broad-spectrum SPF 30+ protects against UV damage. It is the essential partner for retinoids, acids and brightening ingredients.
FAQ
Can I use Vitamin C and Sunscreen together?
Yes. Vitamin C under sunscreen is one of the best-supported morning combinations.
Should I use Vitamin C or Sunscreen in the morning or at night?
Apply Vitamin C as directed (if it is a night-time active, use it in the PM). In the morning, finish your routine with a broad-spectrum SPF 30 or higher as the last skincare step.
Who should be careful combining Vitamin C and Sunscreen?
Anyone using retinoids or acids should treat daily sunscreen as non-negotiable. If a sunscreen stings over freshly applied actives, wait a few minutes or switch to a mineral formula.
Do I need sunscreen with Vitamin C and Sunscreen?
Yes. Daily broad-spectrum SPF 30+ is recommended with any active skincare routine.
Sources
Studies and reviews on these ingredients and, where available, on this specific combination.
- Pullar JM, Carr AC, Vissers MCM. The roles of vitamin C in skin health. Nutrients. 2017;9(8):866.
- Al-Niaimi F, Chiam NYZ. Topical vitamin C and the skin: mechanisms of action and clinical applications. J Clin Aesthet Dermatol. 2017;10(7):14-17.
- Sunscreens part 1: Mechanisms and efficacy. J Am Acad Dermatol. 2025.
Related combinations
- Can you use Retinol with Vitamin C?
- Can you use Vitamin C with Niacinamide?
- Can you use Tretinoin with Vitamin C?
- Can you use Vitamin C with Salicylic Acid?
- Can you use Vitamin C with Hyaluronic Acid?
- Can you use Retinol with Sunscreen?
- Can you use Vitamin C with Glycolic Acid?
- Can you use Vitamin C with Benzoyl Peroxide?