Bi-phase serum for redness prone skin. Sensibio AR+ Bi-serum is a dual-action concentrate: it provides comprehensive, specific care for reactive skin with redness while targeting the signs of aging. Biphasic texture. Non-sticky, non-greasy. Unfragranced. Dermatologically tested. 1. Rosactiv™ 2.0: this exclusive technology, inspired by our unique NAOS ECOBIOLOGY approach, targets at the source the biological mechanisms involved in different types of redness and discomfort and visibly reduces these effects with long-lasting results. 2. Bakuchiol: this retinol-like anti-aging active ingredient adapted to sensitive skin helps restore skin firmness and smoothes fine lines and wrinkles.