Vita-Peptide C-Quence Serum 1 is the introductory serum in the premium Environ Vitamin A step-up system and contains the lowest concentration of vitamin A and C in the Youth EssentiA range. The technologically advanced serums in this Vitamin A step-up system range contain a powerful combination of ingredients that work in synergy to assist in: combating the visible signs of aging; creating the appearance of even, smoother and healthier looking skin; supporting and maintaining a radiantly youthful appearance.