Grab FREE 3-Piece Invati Haircare Sample Pack at Aveda Invati. You’ll get a free Invati Exfoliating Shampoo, Thickening Conditioner and scalp revitalizer when you visit an Aveda location. To get this free sample, you will need to click on “Get Offer” to print your coupon then present to the cashier to redeem. This offer expires on January 31, 2016.