Compositions and methods for reducing post perm odors, via reaction with hair aldehydes, by contacting the hair with a polyhydric phenol, particularly resorcinol or its derivatives, before, during, or after application of a reducing agent-containing waving lotion. The polyhydric phenol should have the following formula (I): ##STR1## wherein R'=H or OH, R=H or C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 alcohol, C.sub.1 -C.sub.12 aldehyde, or a ketone having formula (II) ##STR2## wherein n=0-12, R"=C.sub.1 -C.sub.12 alkyl, and wherein n+number of carbons in R"=1-12.
A method and composition are disclosed with which it becomes possible to reduce the perception of ammonia odor in ammonia-containing compositions such as hair bleaches and colorants. A perfume composition containing at least one perfume material which is olfactively stable in the ammonia base and satisfies one of the following criteria is added to the ammonia-containing composition: (1) contains a phenyl ring moiety and has an air diffusion coefficient of >5.7, (2) contains a C-5 ring moiety, which also contains at least 1 carbon which is sp2 hybridized, and has an air diffusion coefficient of >4.4.
This invention provides compositions and methods for reducing odors associated with permanent hair waving by contacting the hair with a disulfide before, during, or after application of a sulfur-based reducing agent.
