Pairing an Astaxanthin serum underneath your SPF moisturizer creates a powerful skincare synergy that provides advanced dual-layer protection against sun damage, environmental aging, and hyperpigmentation. While sunscreen acts as an upstream shield to block or absorb harmful ultraviolet (UV) photons, Astaxanthin (much more powerful than Vitamin C) operates as a downstream safety net. It deeply penetrates the skin to neutralize the free radicals that manage to slip past your sunscreen barrier. Clear Choice Supercharged SPF 45 UV Protection 4 oz. : filters protect the skin from damaging free radicals, UVA UVB rays, smog,pollution Nova Oil 1 oz. Fades and Prevents Dark Spots: Sun exposure triggers melanin overproduction, leading to dark patches and uneven skin tone. Astaxanthin works on a cellular level to inhibit tyrosinase—the enzyme responsible for melanin production. While your SPF prevents new spots from forming, the serum works underneath to fade existing discoloration. Prevents Sunscreen Degradation: Sunlight can break down Astaxanthin and vitamin C if it is left unprotected. Applying your SPF moisturizer directly over the top shields the vitamin C from immediate solar breakdown, allowing the active ingredients to safely absorb and maximize their potency.