Cindy Ord / Getty Dry shampoo is extremely convenient, but you don't want to use the same type for different situations. Jet Lag has the lightest cleanse level and is ideal for after a blowout or a wash. IGK First Class Dry Shampoo is the deepest cleanse and should be used for when you want to push off your next hair wash or for after a workout. As far as products go, we can think of few additions to our beauty routine that truly qualify as life-changing.