Osmo Straighten Up Keratin Smoothing Complex (250ml) is a revolutionary keratin-straightening complex that works with styling irons to transform curly, frizz-prone, unruly locks into sleek, smooth, visibly straighter styles whilst retaining the hair's natural moisture.

It is a heat-activated formula and will lock in straightness without adding weight to your hair. It protects the hair against heat damage for up to three days, or until the next shampoo wash.

Directions of use:

• Apply evenly over damp or wet hair and comb through.
• Blow dry hair with a radial brush.
• Finish using your straightening irons in sections.