Long-lasting smoothing anti-frizz in humid weather without added formaldehyde calm frizzy, unruly hair with a professional smoothing treatment that leaves lengths soft, smooth and shiny without making hair flat and lifeless. This keratin and amino acid-based formula works deep into the hair fiber to reduce volume, seal the cuticle and protect against humidity, keeping frizz at bay for weeks. Benefits reduces frizz and volume for more manageable hair. Smoothes and gives a mirror-like finish with slight natural movement. Helps shorten styling time and makes hair easier to shape. The effect lasts for up to approximately 3 months depending on hair type and maintenance. Enriched with keratin and amino acids that strengthen and smooth the hair shaft. Without added formaldehyde and developed to minimize unwanted odor during use. Suitable for natural, wavy or curly hair that wants control and smoothness. How to use the product wash hair thoroughly with a clarifying shampoo and dry until slightly damp. Apply the treatment section by section to lengths and ends, avoiding direct contact with the scalp. Leave to act according to the instructions on the packaging. Blow-dry hair and activate the formula with a straightener in thin sections to seal the result. Finish according to the included instructions and then care with a gentle, sulfate-free shampoo and nourishing conditioner to prolong the effect. For a consistent and long-lasting result, it is recommended that the treatment be pe...