After shampoo,divide your towel-dried hair in 4 sections of large locks . Apply one phial of Proteosan with a brush,avoiding the scalp. Cover your hair with a Thermal Conditioning Cap & blow-dry your hair with a hot air Hairdryer till the full shrinkage of the cap.Hot air opens the scales of your hair & the product penetrates deeply for shiny,fully -moisturized hair with body & elasticity.Leave -on for 30 minutes. Then rinse carefully,towel-dry & use a Finish if needed. With Proteosan ,you don't need a conditioner or a mask.