The Synergistic Shield – Why Vitamin C and SPF are Better Together

A common skincare myth is that Vitamin C should only be used at night. From a photobiological perspective, Vitamin C is most critical during the day.

The Science of Synergy: Even the best broad-spectrum sunscreens (SPF 50) allow about 2% of UV rays to reach the skin. These rays trigger the formation of Free Radicals (Reactive Oxygen Species), which break down collagen and cause hyperpigmentation.

• The Second Line of Defense: Vitamin C neutralizes these free radicals on the spot.

• Photoprotection Boost: Studies have shown that the combination of Vitamin C and Vitamin E under sunscreen significantly increases the skin's "minimal erythema dose" (the amount of UV it takes to burn).

Pro Tip: Apply your Vitamin C serum as the first layer after cleansing in the morning to "recharge" your skin's antioxidant reservoir.