The subject invention relates to novel soluble forms of planar ring structured organic compounds including flavonoids, and their production. The invention also includes the use of these novel formulations of planar ring structured organic compounds in the preparation of formulations and products. The invention also relates to a wide variety of applications of the formulations of the invention. The subject invention includes novel soluble forms and various formulations of flavonoids. Further, the invention includes novel methods of manufacturing the flavonoid formulations. The invention also relates to a wide variety of applications of the flavonoid formulations.

There is provided a core-shell particle comprising a polymer conjugate encapsulating an active agent, wherein the polymer conjugate comprises a biocompatible polymer and a polyacidic polymer. There is also provided a process for forming the core-shell particle, a delivery vehicle comprising the core-shell particle and a method for delivering an active agent to a desired site.

Provided are compositions and methods that are useful for hair care compositions. The compositions comprise polyurethane microparticles coated with zinc salt particles, wherein the ratio of zinc salt to polyurethane is in a range of from 1:99 to 3:7, and the polyurethane microparticles have an average particle size of less than 100 microns. Also provided are methods of preparation of such compositions.

Ultrastable silver nanoparticles, methods of making the same, and methods of using the same, are disclosed.

It relates to a food-grade coated particle comprising: a) a core that comprises a (C.sub.4-C.sub.12)polycarboxylic acid; and b) a coating that comprises: (i) an alkali metal salt of a (C.sub.4-C.sub.12)polycarboxylic acid wherein at least one carboxylic group of the (C.sub.4-C.sub.12)polycarboxylic acid is in the acid form, and at least one carboxylic group of the (C.sub.4-C.sub.12)polycarboxylic acid is in the salt form, and (ii) a film-forming agent; wherein the weight ratio between (i) and (ii) is from 20:80 to 40:60. It also relates to processes for the preparation of these food-grade coated particles, to their use as food additives, as well as to foodstuffs comprising them.

The present invention relates to a core-shell network structure formed using a biocompatible biopolymer and to a composition comprising same. Said structure can be used as an alternative to synthetic chemical materials, such as polyethylene glycol (PEG), to effectively disperse an insoluble effective substance within a composition, thus addressing safety issues, and formulations can be preserved stably for a long time through said network structure. Furthermore, said structure and the composition comprising same may provide useful benefits for the skin in terms of skin barrier enhancement, skin moisturization, skin regeneration, or the like.

The present invention relates to a core-shell capsule comprising: a core comprising an oil, a solvent satisfying relational expression 1 below, and a water-insoluble polymer compound dissolved in the solvent; and a water-insoluble polymer shell enclosing the core.
0.01≤C.sub.A/C.sub.B≤100  [Relational expression 1]
(in relational expression 1, C.sub.A/C.sub.B is the distribution coefficient of solvent, and when the solvent is dissolved in oil and water to reach equilibrium, C.sub.A is the concentration of the solvent dissolved in the oil and C.sub.B is the concentration of the solvent dissolved in water).

The subject invention relates to novel micoparticulate and soluble forms of flavonoids, and their synthesis. The invention also includes novel formulations of such flavonoids. Further, the invention includes novel methods of manufacturing the flavonoid formulations. The invention also relates to a wide variety of applications of the flavonoid formulations.

The present invention relates to a technology for producing a black pearlescent pigment for cosmetics which is a human-friendly and nature-friendly by using a pigment including natural charcoal powder. The production method of the pearlescent pigment using natural charcoal according to the present invention includes (a) milling natural charcoal to produce a pigment including natural charcoal powder; and (b) coating a flake substrate with the produced pigment including the natural charcoal powder, wherein the milling is performed at 20 to 40 Hz for 24 to 72 hours, and an average particle size of the pigment including the natural charcoal powder is 100 to 300 nm.

[Problem] An objective of the present invention is to provide an emulsion cosmetic for self-tanning, which has an excellent texture to the touch, which exhibits strong resistance to contact (rubbing) with water, clothes, fingers and the like, and which does not tend to result in uneven coloring. [Solution] The self-tanning emulsion cosmetic according to the present invention comprises (A) core-corona microparticles in which hydrophilic groups are partially provided on surfaces of hydrophobic fine particles; and (B) a self-tanning agent.