SKAFE BTX STRAIGHTENING 950 GRAMS In just one step, achieve naturally straight hair with ease using Natutrat HidraHair Mega Deep Hair Mask. Its formula contains argan oil and arginine, which provide excellent treatment and hydration. This product protects and nourishes hair, eliminating frizz and maintaining a sleek effect without any formaldehyde. To use, start with Step 1: Apply the Deep Cleansing Shampoo SODIUM FREE and gently massage it into your hair. Rinse and repeat the application. Then, for Step 2, use a hairdryer to dry 80% of your hair and comb it with a wide-toothed comb, dividing it into four equal parts. Apply the Deep Hair Mask along the entire length of your hair, starting at the nape of your neck, using a brush. Align the strands with a fine comb, sliding it over each strand. Leave the mask on for a specified time, depending on your hair type (30 minutes for fine and sensitive hair, 40 minutes for medium hair, or 60 minutes for thick and resistant hair). For Step 3, rinse your hair thoroughly to remove all the product. Then, brush your hair and straighten it in thin strands 8 to 10 times.