Cantu’s Guava & Ginger Treatment Serum is an oil-based leave-in solution that soothes dry, itchy scalp. Formulated with a nourishing blend of guava, ginger, carrot oil, and tea tree oil, this treatment penetrates the scalp with oils and extracts that relieve irritation and promote healthy hair growth. Apply to dry, flaky areas in between shampoos, or use as a hot oil treatment for intense moisture.