- Transform dry skin with deep, lasting moisture. Philosophy's intensely hydrating gel-oil formula leaves depleted skin feeling nourished and comfortable, with a smoothed texture that appears naturally radiant and refreshed. 83% of women agreed skin felt supple, velvety soft and looked naturally luminous in a 2-week self-assessment study with 48 women ages 35-60, used once daily. Apply to clean, dry skin. massage in thoroughly. Leave on for 10 minutes, allowing mask to absorb into skin. Tissue off any excess. Do not rinse. May be left on overnight.