How to Apply:
-After shampooing with the Kiehl's Shampoo appropriate for your hair and scalp type, rinse hair thoroughly
-Apply Formula 133 Hair Conditioner by gently working it into the scalp and hair especially the ends and combing through
-Leave in for a few minutes and then rinse out
-"Formula 133" may be applied again after rinsing and allowed to remain on hair as a conditioner and grooming aid, if desired

Cool Kiehl’s Fact:
The formula gets its unusual name from the fact that customers who were invited to test the product during development were so eager to have more that Kiehl’s chemists never had the chance to name the formula properly. “Formula 133” was their code name for their winning test sample!