Rusk Purify Cucurbita & Tree Oil Deep Cleansing Shampoo adds vitality and luster, while ridding hair and particularly scalp of impurities. Cucurbita & tea tree is a natural deep cleanser that wakes the hair up. While ridding the hair of oily flaky scalp and restoring natural health and vitality. Use 30 to 50% less and acheive twice the performance.