You can currently get a FREE shampoo sample from Aveda with this coupon! Just print the coupon and take it to an Aveda shop near you. When you do, you can get a 3-product Aveda shampoo kit. The aforementioned sample kit contains Invanti exfoliating shampoo, thickening conditioner, and scalp revitalize. This coupon is valid through January 31, 2016.