Designed to promote a balanced scalp environment, Philip Kingsley’s Density Preserving Scalp Drops deliver an innovative active complex to condition and nourish the hair and scalp.The lightweight serum is enriched with caffeine, azelaic acid and anti-microbials, gently exfoliating to help minimise the appearance of oiliness and dandruff. Suitable for sensitive scalps, the drops offer a cooling effect upon application to leave your hair and scalp feeling refreshed.