For the 1st Month: Use Fortifying Densifying Shampoo every time you shampoo. Apply Revitalizing Fortifying Serum every 2 days.; For the 2nd & 3rd Months: Use Fortifying Densifying Shampoo every time you shampoo. Apply Revitalizing Fortifying Serum twice a week.; Use Fortifying Densifying Shampoo every time you shampoo or alternately with another Hair Ritual by Sisley Shampoo. Apply Revitalizing Fortifying Serum every 2 days on a continuous basis.; Revitalizing Stimulating Complex (Einkorn wheat Extract, Zinc, Copper, Magnesium, Vitamin B6, Vitamin E Acetate, and Pro-vitamin B5):helps to provide an energizing sensation to the scalp; Densifying Complex (Baobab proteins and Ceramide Analogue):helps reveals a visibly stronger and thicker hair quality; Arginin:promotes hair vitality; Alpha-Bisabolol of natural origin:soothes; Camellia oil:envelops hair lightly, leaving it soft and supple; Moringa oil:increases the hair’s shine; Shea oil:nourishes and strengthens the hair