Tigi S-Factor Smoothing Balance Boosters (4 X 25ml) A weekly dose formulated to soften your hair TIGI S-Factor Smoothing Balance Boosters will smooth & defrizz leaving your hair healthy & full of shine. Instant gratification guaranteed! Four intense doses TIGI S-Factor Smoothing Balance Boosters contain key elements from TIGI’s Healthy Hair Complex to improve the condition of damaged & frizz prone hair making it silky soft & ultra smooth. This multi-purpose formula controls hair & instantly seals the cuticle for maximum pre-styled frizz control. Directions of use: After shampooing apply half to one full tube as needed & comb through. Leave on for five to ten minutes then rinse. Use once or twice a week (in place of hair conditioner) depending on the length of hair.