Papaya Castor Scalp Massaging Serum A unique scalp-soothing blend of Vitamins A, C, D, and E. Papaya provides the nutrients, while Castor Oil delivers intense hydration. This Serum cools the scalp and provides relief to dryness and itchiness. No film or flakes left behind. Instead, this product spreads easily and absorbs quickly for optimal nourishment. Great for daily scalp maintenance.