Provided are: a core-corona polymer particle excellent in emulsion stability and feeling of use, and a raw material for a cosmetic and an oil-in-water emulsion cosmetic comprising the particle. The present invention provides a core-corona polymer particle obtained by radical-polymerizing a polyethylene oxide macromonomer represented by the formula (1) and one or two or more of hydrophobic monomers represented by the formulas (2) and (3) under the following conditions (A) to (D).

The present disclosure relates to a nanoemulsion composition for tooth whitening and method for preparing the same, and the present disclosure provides a composition for tooth whitening and method for preparing the same, including a water phase part containing water; and an oil phase part dispersed in the water phase part and made of nanoparticle containing a perfluorocarbon compound, wherein the oil phase part includes oxygen gas. According to the present disclosure, there is an advantage of replacing peroxide and at the same time exhibit excellent tooth whitening effect.

The present disclosure relates to a nanoemulsion composition of oxygen gas sustained release and method for preparing the same, and provides a nanoemulsion composition of oxygen gas sustained release and method for preparing the same, including a water phase part containing water, and an oil phase part dispersed in the water phase part and made of nanoparticle containing a perfluorocarbon compound, wherein the oil phase part contains oxygen gas, and the oxygen gas is released in sustained release. According to the present disclosure, there are advantages of preventing hair loss or promoting hair growth by increasing the amount of oxygen gas supplied to the hair bulb and the oxygen release time from the hair bulb.

The present invention relates to a nanoemulsion comprising at least one aqueous component and a carrier, wherein the carrier comprises at least one lipophilic component, at least one surfactant and at least one alcohol. The present invention further relates to a composition comprising said nanoemulsion and an active agent. In particular, the composition is present as a gel and the active agent is 5-aminolevulinic acid, a derivative, precursor and/or metabolite thereof. The invention further relates to the preparation of said nanoemulsion and/or composition and to their use for the treatment of dermatological diseases, virus-associated diseases as well as diseases associated with cell proliferation, in particular, tumor diseases and/or psoriasis. The present invention is further directed to the use of said nanoemulsion in cosmetics.

Nanoemulsions and a method for making the same are described. The nanoemulsions comprise a skin benefit agent in the water phase and they are made from two macroemulsions that have non-identical pH values.

The present invention is in the field of antiperspirant compositions, in particular, compositions comprising antiperspirant actives. Disclosed is an antiperspirant composition free from aluminium and/or zirconium salt comprising an oil in water emulsion comprises oil phase and a nonionic emulsifier, has an HLB value of 10 or lower and a melting point higher than 37° C.; wherein said composition comprises at least 4 wt % of said nonionic emulsifier; wherein said oil phase comprises a lipophilic material having a melting point greater than 37° C.

A peptide having the general Formula (1)
X-(Xaa).sub.nK*TFK*-(Xaa).sub.m-Z  (1)
is described, where the peptide helps preserve or improve the condition of the epidermis and wherein X, (Xaa).sub.n, (Xaa).sub.m, n, m, K* and Z are as defined.

The present invention relates to a hair cosmetic composition, especially for washing and/or conditioning hair, comprising surfactants and an oil-in-water emulsion that comprises: a silicone mixture comprising a trialkylsilyl terminated dialkylpolysiloxane and an amino silicone; a mixture of emulsifiers comprising one or more nonionic emulsifier, wherein the mixture of emulsifiers has a HLB value from 10 to 16; and water. The invention also relates to a process for the cosmetic treatment of hair, preferably for washing and/or conditioning hair, using this composition.

Disclosed herein are nanoemulsions, the nanoemulsions comprising biologically active ingredients. Further disclosed are processes for preparing the nanoemulsions and methods of their use.

The present invention relates to a self-emulsifiable composition including a monoacyl phospholipid, a diacyl phospholipid, oils and fats, and a polyhydric alcohol, in which the content ratio between the monoacyl phospholipid and the diacyl phospholipid is in the range of monoacyl phospholipid:diacyl phospholipid=1:9 to 9:1 as a mass ratio.