Quick view 2B Bio Sérum O2 30ml Retail By 2B Bio Beauty Please log in for pricing. Please log in for pricing. The Purpose Formulated with of highly concentrated and qualitative ingredients, 2B Bio Serum, combined with 2B Bio Cocoon, allows your skin to breathe in a optimal way and to better auto-regulate itself in polluted environments. Also acts as detoxifying... Add to Wish List