Shampoo serving size: two teaspoons
How much shampoo you needs depends on a bunch of factors, including how much hair you have, its texture, and how often you shampoo. But most women need about two full teaspoons, according to the experts at Head & Shoulders . You’ll know you’ve used enough if the liquid works into a rich lather and provides coverage all over, so you get the max cleaning action. If your hair is long, thick, or curly, you may need more shampoo to avoid leaving behind dirt, oil, and product build-up. Here’s how to find the best kinds of shampoo for your hair type.
Daily conditioner serving size: a quarter
This amount is enough to reap the detangling, hydrating, and shine-enhancing rewards of conditioner, says Real Simple. Placement is a prime consideration: Avoid the roots and coat hair from mid-shaft to ends, since that’s where most damage is. Then comb through while in the shower to saturate strands evenly.