No, you shouldn't mix vitamin C and sunscreen directly. Instead, apply your vitamin C serum before your sunscreen.
Understanding the Application Order
Applying vitamin C serum before sunscreen is crucial for optimal absorption and effectiveness. Dr. Gerald Imber, a plastic surgeon, emphasizes that vitamin C needs to be applied before moisturizer or SPF for proper absorption; otherwise, it's rendered largely ineffective. [Source: Dr. Imber, various articles]. This is because sunscreen often contains ingredients that can interfere with vitamin C absorption. Applying the vitamin C first allows it to penetrate the skin and perform its antioxidant and skin-protecting functions before the sunscreen creates a barrier.
Multiple sources confirm this layering approach. While some sources state that vitamin C can be used with sunscreen, they emphasize the importance of applying vitamin C first to maximize benefits [Source: Reddit, Juice Beauty, various articles]. Applying them simultaneously may reduce the effectiveness of the vitamin C.
Benefits of Using Both Vitamin C and Sunscreen
Vitamin C is a powerful antioxidant that protects against free radical damage caused by UV rays, pollution, and other environmental stressors. Sunscreen, on the other hand, acts as a physical barrier against UV radiation, the primary cause of sunburns and premature aging. Using both products together provides a comprehensive approach to skin protection. Studies show that the combination of vitamin C and UVA sunscreen can enhance photoprotection. [Source: Acta Dermato-Venereologica study].
Layering Your Skincare Routine:
Here's a suggested order:
- Cleanse: Start with a gentle cleanser to remove dirt and impurities.
- Vitamin C Serum: Apply your vitamin C serum to allow for optimal absorption.
- Moisturizer (Optional): If using a moisturizer, apply it after the vitamin C serum.
- Sunscreen: Finally, apply your sunscreen for broad-spectrum UV protection.
