The Aveda Hair Thickening Tonic is a 100ml spray formulation designed to provide thickening and volumising effects for all hair types. Made with aloe vera as the main ingredient, this tonic is suitable for use on hair and is effective for up to 24 months after opening. Perfect for achieving a fuller, more voluminous look with a natural feel to the hair, this product is a must-have for anyone looking to enhance their hair's appearance.