Abstract: A method for evaluating an odor generated when using a self-tanning agent, wherein at least one compound selected from pyrazine compounds represented by the following general formula (1) is used as an indicator substance: wherein R1 represents a methyl group, an ethyl group or an acetyl group, and R2, R3 and R4 independently represent a hydrogen atom or a methyl group.

Abstract: A self-tanning cosmetic comprising components (A), (B) and (C), and a self-tanning method reducing an odor derived from a compound represented by the following formula (1), comprising a step of application of the cosmetic to the skin for a browning reaction, wherein the cosmetic comprises: (A) dihydroxyacetone; (B) at least one or more compounds selected from the group consisting of 4-methyl-3-decen-5-ol, 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol, 2-hexyl-3-phenyl-2-propenal and 2-methyl-3-(4-iso-propylphenyl)propanal; and (C) at least one or more compounds selected from the group consisting of 3,7-dimethyl-1,6-nonadien-3-ol, 1-(2,2,6-trimethyl-2-cyclohexenyl)-2-buten-1-one, 1-(5,5-dimethyl-1-cyclohexen-1-yl)-4-penten-1-one, 1-(3,3-dimethyl-6-cyclohexen-1-yl)-4-penten-1-one, benzaldehyde and gamma-nonalactone; wherein R1 represents a methyl group, an ethyl group or an acetyl group, and R2, R3 and R4 represent a hydrogen atom or a methyl group.

Abstract: A method for evaluating an odor generated when using a self-tanning agent, wherein at least one compound selected from pyrazine compounds represented by the following general formula (1) is used as an indicator substance: wherein R1 represents a methyl group, an ethyl group or an acetyl group, and R2, R3 and R4 independently represent a hydrogen atom or a methyl group.

Abstract: A method of assessing body odor using as an index an indicator material comprising an alcohol compound having a mercapto group at the 3-position represented by the following formula (2) and/or a substance that is a derivative of an alcohol compound having a mercapto group at the 3-position, wherein an atom(s) or an atom group(s) is introduced to a mercapto group and/or a hydroxyl group of an alcohol compound having a mercapto group at the 3-position represented by the formula (2):

Abstract: A method for determining potential for body odor and a method for determining the effectiveness of a deodorant carried out by detecting a substance represented by the following formula (1) or a derivative thereof: wherein R1 is a hydrogen atom or a methyl group, R2 is an alkyl group containing 1 to 5 carbon atoms, and R3 is a hydrogen atom or a methyl group.

Abstract: A method of assessing body odor using as an index an indicator material comprising an alcohol compound having a mercapto group at the 3-position represented by the following formula (2) and/or a substance that is a derivative of an alcohol compound having a mercapto group at the 3-position, wherein an atom(s) or an atom group(s) is introduced to a mercapto group and/or a hydroxyl group of an alcohol compound having a mercapto group at the 3-position represented by the formula (2):

Abstract: A method for determining potential for body odor and a method for determining the effectiveness of a deodorant carried out by detecting a substance represented by the following formula (1) or a derivative thereof: wherein R1 is a hydrogen atom or a methyl group, R2 is an alkyl group containing 1 to 5 carbon atoms, and R3 is a hydrogen atom or a methyl group.

Abstract: A method for determining potential for body odor and a method for determining the effectiveness of a deodorant carried out by detecting a substance represented by the following formula (1) or a derivative thereof: wherein R1 is a hydrogen atom or a methyl group, R2 is an alkyl group containing 1 to 5 carbon atoms, and R3 is a hydrogen atom or a methyl group.

Abstract: A method for determining potential for body odor and a method for determining the effectiveness of a deodorant carried out by detecting a substance represented by the following formula (1) or a derivative thereof: wherein R1 is a hydrogen atom or a methyl group, R2 is an alkyl group containing 1 to 5 carbon atoms, and R3 is a hydrogen atom or a methyl group.