The study found that wrinkles, roughness and overall aging were significantly reduced on the arms that received the retinol lotion compared with the arms that received the control lotion.

• 研究发现给予视黄醇润肤乳的手臂与施加对照润肤乳的手臂相比而言，手臂上的皱纹，糙度和整体衰老水平显著降低。