Provided is at least one peptide of formula (I) and its use, where formula (I) is as follows: X-(Xaa.sub.1).sub.n-Pro*-(Xaa.sub.2).sub.m-Y (I). In formula (I), n=0 and m=1. At the N terminal end of the peptide, X is selected from H, —CO—R.sub.1 and —SO.sub.2—R.sub.1. At the C terminal end of the peptide, Y is selected from OH, OR.sub.1, NH.sub.2, NHR.sub.1 or NR.sub.1R.sub.2, R.sub.1 and R.sub.2 being independently selected from an alkyle, aryle, aralkyle, alkylaryl, alkoxy and aryloxy group, that can be linear, branched, cyclic, poly-cyclic, non-saturated, hydroxylated, carbonylated, phosphorylated and/or sulphured, with the possibility to have in said group skeleton a O, S and/or N heteroatom. Pro* corresponds to a Proline, an analogue or derivative thereof.

A complex formed by a zinc oxide molecule and a molecule comprising an acidic hydrogen is disclosed. The oxygen atom of the zinc oxide molecule is covalently bound to the acidic hydrogen.

The present disclosure relates method of tanning a person including applying a moisturizer to an applicator and applying a tanning solution to the applicator. The moisturizer and the tanning solution are applied to the applicator in separate steps. The applicator is then contacted onto the skin of a person to apply the moisturizer and tanning solution.

The present disclosure relates method of tanning a person including applying a moisturizer to an applicator and applying a tanning solution to the applicator. The moisturizer and the tanning solution are applied to the applicator in separate steps. The applicator is then contacted onto the skin of a person to apply the moisturizer and tanning solution.

The present invention employs the use of nano carbon black particles to a tanning composition. The tanning composition so produced will have all the solar spectrum absorbing qualities as the black particles used.

The present invention relates to a composition for stimulating melanogenesis, comprising Cirsium japonicum extract as an effective ingredient. The composition has no skin irritation and cytotoxicity and is excellent in human stability and very effective in stimulating melanogenesis. Therefore, the composition can be safely used in cosmetic or pharmaceutical composition for preventing, improving or treating vitiligo, white hair or hypopigmentation.

The present invention relates to a composition for stimulating melanogenesis, comprising Cirsium japonicum extract as an effective ingredient. The composition has no skin irritation and cytotoxicity and is excellent in human stability and very effective in stimulating melanogenesis. Therefore, the composition can be safely used in cosmetic or pharmaceutical composition for preventing, improving or treating vitiligo, white hair or hypopigmentation.

Disclosed are certified natural skin compositions and related methods of use. Certified natural compositions include diaper rash compositions, antioxidant sunscreen compositions, with or without natural sparkle or shimmer ingredient(s), and after-sun, tan-enhancing bronzer, skin toner or moisturizer composition with natural sparkle or shimmer. The inventive natural skin compositions are specifically formulated with natural ingredients, such that the products are suitable for certification as “natural” and/or “organic” products, and more particularly formulated with a variety of high-quality ingredients that care for and protect skin.

A method for treating a skin disorder, e.g., acne, e.g. acne vulgaris, in a subject is provided. The method comprises administering, e.g., applying, e.g., topically administering, ammonia oxidizing bacteria, e.g., a preparation comprising ammonia oxidizing bacteria, to a surface of the subject. Preparations comprising ammonia oxidizing bacteria for treating such skin disorder, e.g., acne, e.g. acne vulgaris in a subject are also provided.

The present disclosure provides a method of inducing or promoting darkening of the skin and/or melanogenesis, a method of treating a skin condition or disorder, in particular hypopigmentation, comprising administration of a polycationic aliphatic amine, wherein said polycationic aliphatic amine preferably is putrescine, spermidine and spermine. The invention further includes corresponding methods of reducing or preventing darkening of skin and/or melanogenesis, or related methods of treating a skin condition or disorder, comprising administration of at least an inhibitor of polycationic aliphatic amine transport or synthesis, wherein said inhibitor is preferably trimer44NMe or difluoromethylornithine (DFMO) respectively.