The present invention provides a method for skin care by orally administering
a skin care agent comprising an ingestible carrier and natural-type N-acetylglucosamine
obtainable by hydrolysis of chitin with an acid, an enzyme, or an acid and an enzyme,
wherein the natural-type N-acetylglucosamine is contained in an amount of from
0.1 to 99.9% by weight, by which the moisture and tension of skin can be improved
and the rough skin and fine wrinkles can be prevented or ameliorated. The skin
care agent may be a skin care agent containing chitinoligosaccharide in an amount
of from 0.1 to 20% by weight and natural-type N-acetylglucosamine in an amount
of from 0.1 to 99.9% by weight; or a skin care agent containing collagen peptide
in an amount of from 0.1 to 99.9% by weight and natural-type N-acetylglucosamine
in an amount of from 0.1 to 99.9% by weight.
