REGEN RETINOL MAX MOIST 1.7OZ. : Benefits: Olay has packed this fragrance-free formula with Retinol 24's maximum concentration of hydrators to leave you feeling hydrated and replenished.. Penetrates the surface of your skin at night to deliver skin transformation.. Research Results: The retinoid complex has been clinically shown to provide the following results: 57% of subjects had improvement in under-eye wrinkles after 2 weeks*. The retinoid complex has been clinically shown to provide the following results: Reduction in appearance of fine lines and wrinkles around the eye, 4 weeks -7.4%. *Average Clinical results on 20 subjects in a round-robin, randomized, controlled test, compared to baseline..