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