Blu Essential’s Vitamin C Serum works wonders for uneven skin tone, rough texture, fine lines, acne scars, general dullness. This serum has the highest concentration as it is activated fresh at the time of application. Vitamin C is essential for many cellular and skin functions, maintaining skin strength and integrity, wound healing and free radical and UV protection. It boosts collagen production and reverses cell damage, which helps keep the skin firmer and even helps fade and prevent brown spots and pigmentation.