PURC 2 pcs 100ml 8% formalin keratin hair treatment hot sale Keratinstraightening chocolate keratin treatment formalin( Note : One bottle keratin 100ml is sufficient for 17 inch hair. ) 1. Wash hair twice on chemically-treated hair and three times on virgin hair with PURC Keratin Purfyingshampoo. 2.Blow the hair to 100% dry.3. Shake the bottle well,pour approximately 2-3 OZ of Pure Keratin treatmentin to bowl.Apply to hair withbrush using on 1/2" sections.Comb through every section until hair is completely saturated.(Gloves should be worn for this application) 4.Place hair in cap.5.For chemically-treated damaged hair,allow hair to absorb solution for 20 minutes and blow hair to100% dry.For every resistant,coarse hair, allow hair to absorb solution for 30 minutes and blow hairto 100% dry.6.With a heat resistant comb,divide hair into 4 sections.7.Using a 450°F (230°C)flat iron,start at the nape of the neck, taking 1/8 inch sections. Slowly movethe iron from root to ends 5-7 times( 7-10 times for extremely curly coarse hair) infusing the keratintreatment into the hair shaft. For chemically treated damaged hair reduce heat to 430°F. 8.After 3 days or 72 hours, hair should be washed with PURC keratin Daily shampoo and conditioner.(Shampoo does not contain sodium Chloride) WARNING: Avoid contact with eyes, if contact,flusheyes with warm water. Open the windows, door and turn on the fan on this application. * 3 years Expiry date of unopened, 1 month after opened. It must open the windows, doors and the fanwhen used. Not suggest the gravida, child and the allergies person to use.