Skin Beautifying Agent
The present invention aims to provide a skin-beautifying agent, food, beverage, or feed for skin-beautification which has cosmetic effects such as moisturizing and beautifying the skin as well as preventing skin roughness and wrinkles by oral intake. The present invention further aims to provide a skin-beautifying agent containing a milk-derived phospholipid as an effective ingredient, and to provide food, beverage, or feed for skin-beautification containing the skin-beautifying agent. The milk-derived phospholipid is preferably a composition prepared from milk or milk material containing 40 to 70% by weight of lipid in a total solid content and containing 30% or more by weight of milk-derived phospholipid.
1 . A skin-beautifying agent comprising a milk-derived phospholipid as an effective ingredient.
2 . The skin-beautifying agent according to claim 1 , wherein a composition comprising a milk-derived phospholipid prepared from milk or milk material is used as the milk-derived phospholipid, wherein the composition comprises 40 to 70% by weight of lipid in a total solid content and 30% or more by weight of milk-derived phospholipid in the total solid content.
3 . The skin-beautifying agent according to claim 2 , wherein the composition comprising the milk-derived phospholipid is obtained by treating milk or milk material through a membrane having a pore size of 0.1 to 2.0 μm or a membrane having a molecular weight cut-off of 5 to 500 kDa.
4 . The skin-beautifying agent according to claim 2 , wherein the composition comprising the milk-derived phospholipid is obtained by adding an acid to milk or milk material to adjust pH to 4.0 to 5.0 and removing casein protein as a precipitate, followed by treatment with a membrane having a pore size of 0.1 to 2.0 μm or a membrane having a molecular weight cut-off of 5 to 500 kDa.
5 . The skin-beautifying agent according to claim 2 , wherein the milk or the milk material is butter serum or butter milk.
6 . A food or beverage for skin-beautification comprising the skin-beautifying agent according to claim 1 .
7 . A feed for skin-beautification comprising the skin-beautifying agent according to claim 1 .
8 . The skin-beautifying agent according to claim 3 , wherein the milk or the milk material is butter serum or butter milk.
9 . The skin-beautifying agent according to claim 4 , wherein the milk or the milk material is butter serum or butter milk.
10 . A food or beverage for skin-beautification comprising the skin-beautifying agent according to claim 2 .
11 . A food or beverage for skin-beautification comprising the skin-beautifying agent according to claim 3 .
12 . A food or beverage for skin-beautification comprising the skin-beautifying agent according to claim 4 .
13 . A food or beverage for skin-beautification comprising the skin-beautifying agent according to claim 5 .
14 . A feed for skin-beautification comprising the skin-beautifying agent according to claim 2 .
15 . A feed for skin-beautification comprising the skin-beautifying agent according to claim 3 .
16 . A feed for skin-beautification comprising the skin-beautifying agent according to claim 4 .
17 . A feed for skin-beautification comprising the skin-beautifying agent according to claim 5 .