This invention relates to a hair care composition more particularly to a wash-off composition, especially preferred being a shampoo or a conditioner, which provides the desired anti-dandruff efficacy with enhanced stability of the active materials on hair/scalp during use. Disclosed is a hair care composition comprising: (i) 0.01 to 3% by weight zinc pyrithione; (ii) 1 to 5% by weight amino acid; and (iii) 0.1 to 5% by weight additional zinc compound.

A method of repairing oxidatively-treated hair, the methods comprising the sequential steps of: (i) soaking hair in an aqueous treatment composition, (ii) rinsing the hair of step (i); characterised in that the aqueous treatment composition comprises 0.1 to 6 wt % N-acetyl amino acid, based on the total weight of the composition, wherein the N-acetyl amino acid is selected from the group consisting of N-acetyl glycine, N-acetyl alanine, N-acetyl proline, N-acetyl leucine, N-acetyl isoleucine, N-acetyl valine, N-acetyl tyrosine, N-acetyl phenylalanine, N-acetyl tryptophan, N-acetyl serine, N-acetyl glutamine, N-acetyl threonine, N-acetyl asparagine, N-acetyl methionine, N-acetyl lysine, N-acetyl histidine and mixtures thereof, gives damage repair benefits.

A method is described for the treatment and/or prevention of damaged keratin in a keratin-containing tissue, comprising the steps of: applying on the keratin-containing tissue a cosmetic composition comprising molecules carrying at least one light reactive functional group, and at least one photoinitiator; and leaving to process with exposure of the keratin-containing tissue to light, the light being of a wavelength suitable for activating said at least one photoinitiator. A cosmetic composition is also described comprising molecules carrying at least one light reactive functional group and at least one photoinitiator; and its use.

Skin lightening additives and personal care compositions containing amino acids and nicotinamide compounds. The compositions are useful for attaining even skin color and reducing pigmentation, age spots and discoloration.

An anti-wrinkle cosmetic composition comprises a Kava extract, one or more penetration and other anti-wrinkle agents. The Kava extract is extracted from Piper Methysticum root, leaf, stem, or their combinations.

A dermatological preparation comprises an optimized, modified human embryonic fertility culture media with biguanides and/or functional equivalents and the use of said preparation for skin care, hair care, or body care, or dental procedures, or for regenerative medicine such as promoting wound or bone healing. The preparation is formulated to target the hypoxic microenvironment niches of the skin tissue in combination with optimal concentration of nutrients, ions and minerals; to stimulate existing stem cells to trigger the capacity of stem cells to divide and renew and differentiate into specialized cells; and to stimulate molecular and physiological processes, e.g., autophagy, to replenish the substrate pool through the recycling of organelles and the recycling of old damaged proteins and countering free-radical damage to promote anti-aging.

The present disclosure relates to γ-diketone compounds, such as those having the structures: ##STR00001##
The disclosure also relates to cosmetic or dermopharmaceutical compositions comprising the same, and methods for using the compounds or compositions for improving the aesthetic appearance of a subject's skin, for example, improving one or more of skin tone, radiance, clarity, tautness, skin firmness, plumpness, suppleness, softness, skin texture, skin texturization and moisturization, appearance of skin contours, appearance of hollow cheeks, appearance of sunken, baggy, or dark circles under eyes, skin luster, brightness, skin thickness, and skin elasticity and/or resiliency comprising application of the compounds or compositions disclosed.

Topical formulations comprising soft glycopyrrolates are useful for treating excessive sweating conditions in subjects, such as humans suffering from hyperhidrosis. Preferably, at least one soft anticholinergic agent is provided in an effective amount or concentration in an anhydrous formulation that can inhibit excessive perspiration resulting from a condition such as hyperhidrosis.

Topical formulations comprising soft glycopyrrolates are useful for treating excessive sweating conditions in subjects, such as humans suffering from hyperhidrosis. Preferably, at least one soft anticholinergic agent is provided in an effective amount or concentration in an anhydrous formulation that can inhibit excessive perspiration resulting from a condition such as hyperhidrosis.

A topical cosmetic composition is described for restructuring and protecting hair and scalp, as well as products for hair and scalp care involving the same.