Keratin treatment
Also known as: Brazilian blowout, smoothing treatment
A keratin treatment is a salon smoothing service that coats the hair to reduce frizz and make styling easier for a period of weeks to months.
What it is
A product containing keratin or similar smoothing agents is applied to the hair and sealed with heat. The effect is temporary and gradually fades with washing.
What to expect
Appointments often take two to four hours. Salons give aftercare instructions, such as waiting before washing.
What to ask before booking
Ask about the ingredients, including whether the product contains formaldehyde or releases it when heated, ventilation in the salon, and how it suits coloured or damaged hair.