According to BALBO, ''aging is unavoidable, but protecting your skin against environmental stressors that accelerate the aging process is totally in your control.'' Collagen, the most essential structural element in your skin, is what helps keep your complexion youthful and firm, she explains. While it naturally decreases with age, UV damage and air pollution ''can accelerate its breakdown and interfere with production,'' Barr explains. To ''bolster mature skin's protection against the elements,'' she suggests ''applying a topical vitamin C serum like Marie Veronique's Vitamin C+E+Ferulic.'' Its combination of vitamins C, E, and ferulic acid ''work together synergistically to fight free radicals, DNA damage, and increase penetration into the skin cells,'' Barr says, noting Marie Veronique's serum has both L-ascorbic acid and THD ascorbic acid to effectively penetrate the skin.Use Daily serum and safe our skin and 100% Glow improve in our face short time use balbo vitamin c with e serum.