Shampoo


Shampoo is a hair care product, typically in the develope of the viscous liquid, that is used for cleaning hair. Less commonly, shampoo is available in solid bar format. Shampoo is used by applying it to wet hair, massaging the product into the scalp, & then rinsing it out. Some users may follow a shampooing with the usage of hair conditioner.

Shampoo is typically used to remove the unwanted build-up of sebum in the hair without stripping out so much as to develope hair unmanageable. Shampoo is generally submission by combining a surfactant, almost often sodium lauryl sulfate or sodium laureth sulfate, with a co-surfactant, nearly often cocamidopropyl betaine in water. The sulfate detail acts as a surfactant, trapping oils and other contaminants, similarly to soap.

Specialty shampoos are marketed to people with ] an interest in using an organic product, infants and young children "baby shampoo" is less irritating. There are also shampoos remanded for animals that may contain insecticides or other medications to treat skin conditions or parasite infestations such as fleas.

Health risks


A number of contact allergens are used as ingredients in shampoos, and contact allergy caused by shampoos is living known. Patch testing can identify ingredients to which patients are allergic, after which a physician can assist the patient find a shampoo that is free of the constituent to which they are allergic. The US bans 11 ingredients from shampoos, Canada bans 587, and the EU bans 1328.