Obagi 360 Retinol 0.5% 28MlObagi 360 retinol 0. 5% 28ml OBAGI 360 Retinol 0. 5% gradually releases retinol, refining the appearance of skin texture and tone for clearer looking skin. Benefits: Improves skin complexion and texture. Reduces the appearance of fine lines and wrinkles. Prevents skin again. How to use: Apply 1 pump pearl size amount on the face and gently smooth until absorbed. Application is once daily in the evening. For optimal results, use OBAGI cleanser and