Down the side of the audiogram, there is a measure of loudness. At the top of the graph are the very. quiet sounds, going down to moderate, and then very loud sounds. The points (red circles and blue. crosses) marked on the graph represent the quietest sound which can be just heard.
Steps. 1  1. Wait at least 3 days to wash newly permed hair, or your perm would not last as long. 2  2. Use hair care products that are safe for permed hair 3  . 3. Wash your hair gently (don't scrub too hard or your hair will tangle up)(your hair is very porous and fragile). 4  4. Gently rinse your hair.
After your perm, shampoo with ammonium-based shampoos. Some simple guidelines to keep your hair perm looking beautiful and your hair in the best possible condition: Do not wash your hair for 48 hours after you have a perm. When washing your hair, only use professionally recommended products to maintain the curl and condition of your hair. Products that are not specifically designed for permed hair may dry out or over stress your wave.