How to Use Dry Shampoo the Right Way (and How Often)

What dry shampoo does (and doesn't do)

Dry shampoo works by absorbing oil, which is why roots look and feel fresher after you use it. But according to the American Academy of Dermatology (opens in a new tab), it does not actually clean your hair, and it should not replace regular shampooing.

That is the key to using it well: think of it as a way to stretch the time between washes, not to skip them.

How to use dry shampoo, step by step

1. Choose a formula for your hair. The AAD suggests picking one made for your hair color and type, whether oily, dry or curly.

2. Start small. Apply a small amount only where you need it, such as oily roots. The AAD warns that too much can leave hair dry, stiff or gritty.

3. Spread and wait. Spread it evenly over your scalp and let it sit for the time the product recommends. Dove's listing, for example, says to separate dry hair into sections, shake the can, spray 8 to 12 inches from the roots in short bursts, and leave it in for a couple of minutes.

4. Brush it through. Brush or comb it out, as the AAD advises.

How often you can use it

The AAD recommends washing with regular shampoo and water after one or two uses of dry shampoo. How often you need a full wash also depends on your hair: the AAD says people with straight hair and an oily scalp may want to shampoo every day, while dry, textured, curly or thick hair may need it at least once every 2 to 3 weeks, as needed.

If you style with heat between washes, our curling iron guide compares three irons by barrel size and heat range, and our vitamin C serum picks cover the skincare side of your routine.

Mistakes to avoid

Making your own. The AAD advises using store-bought dry shampoo rather than a homemade version; homemade mixes made with cornstarch, cocoa powder or baking soda can clump and clog pores on the scalp.

Skipping the wash. The AAD says dry shampoo should not replace regular shampooing, and recommends a wash with shampoo and water after one or two uses.

Ignoring irritation. If your scalp itches, burns or gets irritated, stop using it. The AAD says to see a dermatologist if symptoms last more than a few weeks.

A note on aerosol recalls

On October 18, 2022, Unilever voluntarily recalled select lot codes of aerosol dry shampoos produced before October 2021 under its Dove, Nexxus, Suave, TIGI (Rockaholic and Bed Head) and TRESemmé brands, because of the potential presence of benzene; the company identified the propellant as the source, according to the FDA company announcement (opens in a new tab). Not every product from those brands was affected. If you still have an older can from these brands, check the announcement for the affected products and what to do.