AVST or Advanced Vitamin Skin Therapy is a range of products from Environ. AVST is produced in five varying strengths of vitamins A and C. All of the products contain antioxidants, flavonoids and penetrant enhancers while AVST 3 and up also contain peptides to promote collagen and elastin formation.
No fragrance or sunscreen is included in this range therefore a sunscreen is necessary.
This is a "step-up" approach to Vitamin A. Vitamin A can be very irritating to the skin so easing into it is the best approach. By the time you get to AVST 4 and 5 you are using Vitamin A that is perscription stength.
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