The present invention relates to isopropylparabene free topical compositions comprising a specific polyester and at least one inorganic UV-filter. Furthermore, the present invention relates to the use of the combination of such polyesters and inorganic UV-filters to reduce the stickiness of compositions comprising either the polyester or the inorganic UV-filter.

Composite particles that are biodegradable and easy to handle while maintaining the characteristics of cellulose nanofibers, a method of producing composite particles, a dry powder containing the composite particles, and a skin application composition and a method of producing the skin application composition. A composite particle contains at least one type of particle and fine cellulose with which at least part of a surface of the particle is coated, wherein the particle and the fine cellulose are inseparable.

A powder cosmetic containing: an inorganic powder; and a polyaspartic acid alkali metal salt that coats a part or all of a surface of the inorganic powder, in which a weight average molecular weight x of the polyaspartic acid alkali metal salt is from 1,000 to 150,000, and the weight average molecular weight x of the polyaspartic acid alkali metal salt and a mass ratio y of the polyaspartic acid alkali metal salt to a total amount of the inorganic powder and the polyaspartic acid alkali metal salt satisfy the following relationships: y≤1.6×10.sup.7x.sup.−2.275 and y≥1.3×10.sup.5x.sup.−2.232.

A cellulosic particle contains cellulose as its base constituent, and the 5-day and 60-day percentage biodegradations of the cellulosic particle measured as per JIS K6950:2000 are lower than 20% and 60% or higher, respectively.

Disclosed herein is a micro particle with a diameter of 10-100 microns, wherein the micro particle is coated with silver nanoparticles; and wherein the nanoparticles are coated with a polysaccharide; and wherein the polysaccharide coating is digestible by bacteria. Also, disclosed is a method of making silver nanoparticles using an ascorbic acid derivative or an alpha-hydroxyl carboxylic acid derivative as a reducing agent. The silver nanoparticles may be coated onto micro particles, embedded in hydrogel particles or coated with polysaccharide. The silver nanoparticles may be used in a wound dressing, a bandage, a fungal treatment product, a deodorant, a floss product, a toothpick, a dietary supplement, dental X-ray, a mouthwash, a toothpaste, acne or wound treatment product, skin scrub, and skin defoliate agent.

A method for producing microcapsules with core material and shell material includes following steps: a) providing an aqueous two-phase system comprising at least one salt, which is at least partially not dissolved in this two-phase system and a core material, which is one phase of the two-phase system, and b) adding two solutions i) and ii) in the presence of at least one polymer soluble in solution i) and/or ii), wherein solution i) contains at least one salt of a cation of the salt from step a) and solution ii) contains at least one salt of an anion of the salt from step a). Microcapsules can be obtained or obtainable by the above method, and the microcapsules can be used in products and compositions.

Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.

Treatment of skin tissue with photoactive materials and light, such as nanoparticles and formulations which are useful for cosmetic, diagnostic and therapeutic applications to mammals such as humans. In particular, embodiments of thermal treatment of the skin surface with metal nanoparticles in surfactant containing solutions are disclosed.

Methods for making a personal care product and a personal care product are provided. In one example, the method includes forming a first layer by an additive process. The first layer has a first composition that includes at least one filler component selected from the group of starch, bulking agent salt, granular acid, clay mineral, sorbitol, silica, titanium dioxide, and zinc oxide. A binder is applied to the first layer. A second layer is formed by the additive process overlying the binder. The second layer has a second composition that includes at least one filler component selected from the group of starch, bulking agent slat, granular acid, clay mineral, sorbitol, silica, titanium dioxide, and zinc oxide. At least one of the first composition and the second composition further includes at least one surfactant.

Core-shell particles and methods of making and using thereof are described herein. The core is formed of or contains one or more hydrophobic materials or more hydrophobic materials. The shell is formed of or contains hyperbranched polyglycerol (HPG). The HPG coating can be modified to adjust the properties of the particles. Unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption and increase circulation in the blood. The hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups and adhere the particles to tissue, cells, or extracellular materials, such as proteins.