GS Gems Style Hair Surgery ​​is the most advanced formula to smooth, repair and rebuild hair. This revolutionary straightener is based on the antioxidant and detoxifying properties of the amino acids. Eliminates frizz, leaving hair healthy, silky and shiny for approx. 4 months. Helps tone color and make color last longer. Strengthens hair roots and protects your hair from environmental damage. Eliminates dryness and keeps hair in place, facilitating maintenance and manage. Formaldehyde Free. APPLICATION 1- Wash hair with GS Gems Style Clarifying Shampoo 2 or 3 times and towel dry the hair. 2- Divide hair into small sections and apply the treatment with brush or comb evenly. Comb and massage the product into each section of the hair to ensure maximum penetration. Once the product has been applied all over the hair, remove any excess product using a fine tail comb several times on each layer. Let the treatment works for 20-40 minutes, then blow dry 100% the hair. 3- Section and straighten the hair with Flat Iron that can reach 240°C / 450°F, going over each section 4 to 6 times. 4- After 3 days, wash the hair with GS Daily Shampoo and GS Daily Conditioner to ensure maximum results.You can wash the hair the same day if you prefer. INGREDIENTS: AQUA, GLYOXYLIC ACID, CETRIMONIUM CHLORIDE, GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE, PEG-40 HYDROGENATED CASTOR OIL, LAVENDER ESSENTIAL OIL, ROSE ESSENTIAL OIL, PARFUM, KERASOL, ARGANIA SPINOSA KERNEL OIL -ARGAN OIL-, MACADAMIA TERNIFOLIA SEED OIL, ALOE VERA EXTRACT, HYDROLYZED WHEAT PROTEIN, HYDROLYZED COLLAGEN, PHENOXYETHANOL.