CB Expert Advice: This is the first in the AVST ‘Step Up’ System. A moisturiser containing Vitamin A & C enriched with antioxidants. It is to be used morning & night along with any other serum that has been recommended to you during your Environ consultation. We advise that you always wear a sunscreen daily and you can choose between RAD original or RAD Shield Mineral Sunscreen. We recommend that you use three AVST 1 Moisturisers before you ‘Step Up’ to AVST 2.