A dye-free nail varnish that is used alone or with a stamp to generate a colored coating under incident white light is presented. The nail varnish includes photonic particles and/or block copolymers that can self-assemble to provide a structurally colored coating. The stamp presents a pattern of repeating nanostructures that can be transferred by imprinting the stamp on a coating of a dye-free nail varnish, thereby providing a structurally colored nail varnish coating. Thus, the nail varnish and stamp, independently or together, provide structurally colored coatings without the use of dyes or pigments.

This invention is directed to an effect pigment dispersion comprising a PVD-aluminum pigment, a leafing additive and an oil suitable for cosmetic skin care or color cosmetic applications, wherein a) the amount of the PVD-aluminum pigment is in a range of 8 to 30 wt.-%, b) the amount of the oil is in a range of 70 to 90 wt.-%, each based on the total weight of the effect pigment dispersion and c) the leafing additive is partly adsorbed on the surface of the PVD-aluminum pigment and partly an excess additive dissolved in the oil, wherein the amount of excess leafing additive is in a range of 0 to 25 wt.-%, based on the weight of PVD aluminum pigment. Further cosmetic skin care of color cosmetic formulations containing this effect pigment dispersion are described.

Disclosed herein is a flaky diffractive effect pigment having a diffractive structure and comprising a flake of a highly reflective material having a first major interface and opposed to this first interface a second major interface, and at least one side surface and directly adjacent on one or of both of these major interfaces a layer of a semiconducting material having a bandgap of 0.7 to 2.5 eV. The diffractive effect pigment may be further coated with a coating which is optically non-active in the visible wavelength region.

A method of instantly reducing the appearance of wrinkles and skin imperfections while smoothing the skin, which comprises applying a cosmetic composition comprising a fractal particle based gel.

Surface-modified zinc oxide particles are surface-modified zinc oxide particles where particle surfaces of zinc oxide particles are treated with a hydrolyzable surface treatment agent, in which a color difference E before and after irradiation with simulated sunlight is 4.0 or lower, and an oil absorption amount of cyclopentasiloxane is 20 mL/100 g or less.

The purpose of the present invention is to provide a novel transparent oil-based cosmetic product which, when decorating the transparent oil-based cosmetic product, enables decoration with a variety of designs using a cosmetic ingredient, and which also enables decoration in a simplified method using a printing technique or the like. The present invention pertains to an oil-based solid cosmetic product which has a transparent oil-based base (A) and at least one decorative layer (B), and which is characterized in that: the transparent oil-based base (A) contains a thickener (a1) and a liquid oil (a2); the decorative layer (B) contains a powder component (b1); and the powder component (b1) contains at least one type of powder that has a higher refractive index than that of the liquid oil (a2).