Your Brazilian Relaxer full of keratin 3D to leave your hair straight and strong. For really curly and resistant hair. Way of use: (strictly follow the details instructions on the brochure) before starting the application do a skin test and a straighten test. Do not wash your hair for at least 2 days. Moisten the hair without washing it and divide into four shares. Apply Sfera Professional Straightening Cream in strands, leaving a distance of 0.5 cm from the scalp smooth with aid of a non-metallic comb starting by the neck, comb from root to tip strand by strand and leave it for most 25 minutes always checking the straightening test every 2 minutes rinse here thoroughly with warm water then make neutralization the rinsing is very important, it residues are not totally remove it might cause breakage of hair. Precautions: this preparation should be used only for the purpose its intended, being DANGEROUS for any other use. This product required neutralization it should not be applied if there are sores or irritation in the scalp. In case of accidental ingestion seek medical attention immediately this product should not be use on mucous membranes or nearby regions. Avoid contact protect eye area. In accidental eye contact wash the area with plenty and seek medical advice. Use gloves during application keep out reach of children do not re-use the package. Hair that underwent progressive dyes processes, was bleached with hydrogen peroxide (30 or 40 volumes) or was treated with henna, ammonia, guanidine and products containing hair perborates or other substance that realest hydrogen peroxide or contain metallic salt or soda (sodium hydroxide) cannot be subjected to the use of Sfera Professional straightening cream. Use of this product is possible only when the hair grows and renews itself, returning to its natural with no residue of the mentioned chemical above. We do not recommend the use in pregnant women nursing mother, children and teenager under 15 years old.