Stylist rinsing acidic treatment from client’s hair
Stylist assessing damaged color-treated hair
Stylist sectioning damp hair for smoothing
Stylist assessing damaged hair before treatment
Color-treated hair exposed to bright sunlight
Smooth for months: glyoxylic acid hair treatment risks and repair
Stylist comparing damaged hair sections
Stylist applying repair treatment to damp hair
Stylist smoothing conditioned hair strands
Stylist performing hair porosity water float test
Stylist applying hair treatment in salon
Stylist applying hair repair treatment in salon
Person applying hair mask at home bathroom
Hands stretching wet hair strand in salon
Stylist stretching hair strand to test elasticity
Stylist applying polypeptide treatment to hair strand
Close-up of hair strand being sprayed with water
Flat iron smoothing keratin treated hair in salon