scissor over comb work narrow sections but no wider than the comb An Acid- balance rinse may be used to preserve the color in tinted hair After a permanent wave what advise should the cosmetologist give to the client for at home maintenance to help ensure the perm does not quick relax : *Use an alkaline shampoo followed by alkaline rinse . *Brush the hair frequently during the first three days to even out the curl. *Use a moisturizing conditioner *Use an acid balance shampoo followed by an acid rinse After applying permanent wave solution , if the cotton turns purple or the hair gets excessively hot , most likely the client has previous used Metallic - based hair color After a toner has been rinsed out and the hair gently shampooed and rinsed apply an acid conditioner to close the cuticle , lower the ph, and help prevent fading Although somewhat less irritating to the scalp , this type of relaxer is actually harsher to the hair to than hydroxide relaxers. Guanidine Always store hydrogen peroxide in: An opaque conta