| abstract |
A cosmetic that maintains water retention even under low humidity conditions, does not feel sticky even under high humidity conditions, has little or no viscosity, and does not affect the feel or sensuality of other ingredients. Alternatively, a water-soluble polymer for external preparation for skin is provided. The following equation (1) A 50% by weight aqueous solution of the polymer at a temperature of 30 ° C. and a relative humidity of 60%, having a weight average molecular weight (Mw) of 5,000 to 150,000. A water-soluble (meth) acrylamide polymer for cosmetics or topical skin preparations, wherein the weight loss after standing for 6 hours is 25% by weight or less. [Selection figure] None |