Amika Perk Up Plus Extended Clean Dry Shampoo — 0.75 oz / 21 g (28 mL). MINI Extended-clean dry shampoo that helps absorb oil, refresh the scalp, and keep hair looking cleaner longer between washes. Designed for heavier oil buildup and longer-lasting freshness than a basic dry shampoo. Great travel size for purse, gym bag, or trips.