Precautions while using Shampoo
Foam up the dollop of shampoo with a little water before massaging the foaming shampoo through your hair and over the scalp with circulating movements. Be sure not to scratch your scalp with your fingernails. Shampoos that specifically feature conditioning as a benefit are called 2 in 1 shampoos because they clean and condition hair in the same step. Examples of conditioning agents include guar hydroxypropyltrimonium chloride which is a polymer, dimethicone which is a silicone, and quatemium 80, a quatemary agent.