When you thicken your hair, there\'s also a change inside — the beautiful feeling that comes with thicker, fuller looking hair. Aveda Invati Advanced Thickening Conditioner instantly thickens and delivers weightless conditioning to help protect the hair from breakage. Naturally derived amino acids mimic hair\'s building blocks to help hair feel stronger from roots to ends. Hair is left looking and feeling thicker with fullness that lasts all day. Organic, Sustainable.