Abstract: A solid soap composition which comprises as essential ingredients a soap ingredient (a), a specific polyoxyalkylene-modified polysiloxane Co), and a tetrakis(2-hydroxyalkyl)ethylenediamine(c). It is a detergent with which makeup removal and ordinary face washing can be simultaneously conducted at a time. It lathers well and gives a fresh use feeling after washing. It can sufficiently remove not only foundations but acid pigments.

Abstract: The present invention provides a transparent sheet-like cleansing agent obtained by preparing a composition that contains: (a) a water-soluble high molecular weight compound having a film forming ability; (b) an alkali salt of a fatty acid; and (c) a compound expressed by General Formula (I) below, General Formula (I) (where R is a C4-C34 alkyl group or C4-C34 alkenyl group, at least one of X1 and X2 is —CH2COOM and the other is a hydrogen atom, where M is an alkali metal, an alkaline-earth metal, ammonium, a lower alkanolamine cation, a lower alkylamine cation, or a basic amino acid cation), and uniformly mixing and dissolving (a), (b), and (c) to prepare an undiluted solution in which a ratio of expansion (volume after mixing and dissolution/volume before mixing and dissolution) caused by bubbles generated during the mixing and dissolution is not greater than 1.6, and performing film-formation from the undiluted solution.

Abstract: The present invention provides a solid soap composition comprising: a soap component (a); polyoxyalkylene-modified polysiloxane (b) that is expressed by formula (1) below, (where, R1 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, m represents an integer of 1 to 60, n represents an integer of 1 to 60, a represents an integer of 1 to 10, b represents an integer of 1 to 30, and c represents an integer of 0 to 30); and tetrakis (2-hydroxyalkyl) ethylene diamine (c) that is expressed by formula (2) below, (where, R2 to R5 are the same or different and each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms), as essential components.

Abstract: The invention relates to a novel surfactant which is obtained by blending an N—C8-24 acylamino acid and an alkali salt of an amino acid, and also relates to a detergent composition comprising this surfactant as a cleansing component and an emulsion composition comprising this surfactant as an emulsifying component. In the alkali salt of an amino acid, a suitable amino acid is an acidic or neutral ?-amino acid, and a suitable alkali is sodium, potassium, triethanolamine, or N-methyltaurine sodium. In the N—C8-24 acylamino acid, a suitable amino acid is acidic or neutral, and a suitable C8-24 acyl is a C12-18 acyl. This surfactant can provide a detergent composition which ensures good lathering ability and foam quality and which does not cause stiff hair or taut skin after use. The surfactant can also provide an emulsion composition which ensures a good emulsion state.

Abstract: The present invention relates to a transparent bar soap composition comprising a sodium salt of a fatty acid or a mixed sodium/potassium salt of a fatty acid, at least one amphoteric surfactant selected from the group consisting of compounds represented by formulas (A) to (C), a nonionic surfactant, and at least one glycerin derivative.

Abstract: The present invention relates to a transparent bar soap composition comprising a sodium salt of a fatty acid or a mixed sodium/potassium salt of a fatty acid, at least one amphoteric surfactant selected from the group consisting of compounds represented by formulas (A) to (C), a nonionic surfactant, and at least one glycerin derivative.