Compounds, compositions, and methods comprising a polyamine compound are described, which may be used to kill, disperse, treat, or reduce biofilms, or to inhibit or substantially prevent biofilm formation. In certain aspects, the present invention relates to compounds, compositions, and methods comprising polyamine compounds that have antimicrobial or dispersing activity against a variety of bacterial strains capable of forming biofilms.

A cosmetic or dermatological composition comprising: a) at least one merocyanine of formula (1) or (2) ##STR00001## b) at least one oily phase comprising at least one alkyl or alkylene carbonate is provided. Also provided is a non-therapeutic cosmetic process for caring for and/or making up a keratin material, comprising applying to the surface of the keratin material, of at least one of the above compositions. Also provided is a non-therapeutic cosmetic process for limiting the darkening of the skin and/or improving the colour and/or uniformity of the complexion, comprising applying to the surface of the keratin material, of at least one of the above compositions. In addition, provided is a non-therapeutic cosmetic process for preventing and/or treating the signs of ageing of a keratin material, comprising applying to the surface of the keratin material, of at least one of the above compositions.

Described herein is a hair treatment composition for the hair. The hair treatment composition includes one or more fluorescent compounds and one or more additional ingredients. The one or more fluorescent compounds each include a fluorophore, one or two permanent cations, and one to four incipient cations. The one to four incipient cations are pendant to the core structure and are neutral. The one or more fluorescent compounds enter the hair shaft after the hair treatment composition is applied to the hair. The hair treatment composition has a pH of from about 7 to about 11.

Topical personal care compositions containing amino acids and 4-substituted resorcinols for potentiating glutathione synthesis within skin cells. The compositions can be used to improve skin appearance of chronological aging or photoaging, resulting from exposure to UV light/sunlight, or environmental pollutants. The compositions are also useful for attaining even skin color and reducing pigmentation, age spots and discoloration.

A compound may improve and/or ameliorate hair volume or quality, and such compounds may be contained in a composition. Specifically, a composition may contain pioglitazone for use in improving hair volume or quality. Such compositions may be configured for use in improving hair volume or quality, and increasing anagen-stage hairs. Such compositions may be as oral administration compositions or topical skin administration compositions. Such compositions may be configured for use in inducing a juvenile adipocyte, or inducing histogenesis of a skin accompanying induction of a juvenile adipocyte. The juvenile adipocyte may include a CD34-positive and PPARy-positive adipocyte.

Skin care formulations that function via a multi-modal approach are provided in some embodiments in which select ingredients work together to protect skin from ultraviolet light, hydrates the skin and provides antioxidant properties.

The present invention relates to the use of one or more particular pyridinium salts for the treatment of keratin substances, particularly human keratin fibres such as hair. The invention also relates to a method for the treatment of keratin substances using said salts and optionally one or more chemical oxidizing agents. The invention also relates to a composition for lightening keratin substances comprising one or more pyridinium salts as defined hereinafter and one or more chemical oxidizing agents. The present invention also relates to one or more particular pyridinium salts and also to compositions containing them, especially compositions comprising a physiologically acceptable medium.

A hair care composition is disclosed comprising a cationically modified guar polymer having a cationic degree of substitution of from 0.35 to 0.70, an ethoxylated alkyl sulfate anionic surfactant having a formula RO(CH.sub.2CH.sub.2O).sub.nSO.sub.3M, wherein R is an alkyl or alkenyl group having from 8 to 18 carbon atoms; M is a solubilising cation comprising sodium, potassium, 5 ammonium, substituted ammonium or mixtures thereof; n is the degree of ethoxylation of from 0.5 to 3 and from 0.01 to 10% by weight of an anti-dandruff agent selected from azole based anti-fungal agents, piroctone olamine, metal pyrithione salts, selenium sulfide or mixtures thereof; wherein the degree of substitution is measured using .sup.1H NMR and the spectrum is recorded at 25° C.

A hair conditioner composition with a gel network, a soluble anti-dandruff active, and a preservation system. The preservation system can include an ingredient selected from the group consisting of glycol, glyceryl ester, glyceryl ethers and combinations thereof. There may be no visible crystals of the soluble anti-dandruff active in the condition composition.

The present invention provides a novel substance that promotes expression of filaggrin gene involved in improvement of the moisture retention function of skin. The inventors of the present invention found that expression of filaggrin gene fluctuates rhythmically over a roughly 24 hour cycle, screened candidate substances based on the time at which expression reaches a maximum following addition of the candidate substance, and identified zanthoxylum extract, 3-(1′-piperidine)propionic acid, geranium oil, cypress oil, rose oil, galvanum oil, pepper oil, basil oil, methyl-o-toluate, methyl anthranilate and dimethyl anthranilate as filaggrin gene expression promoting agents.