There are many different substances that you can use as the base of homemade dry shampoo. Ground-up oatmeal, arrowroot powder, and a variety of other fine, absorptive powders can be used. I like organic cornstarch because it's easy to find and it's something that I always have around the house anyway.
Combine all ingredients well and store your all-natural, homemade dry shampoo in the container of your choice. Some good options are a mason jar with holes poked in the lid (the method I used), a large, un-used salt shaker, or a recycled parmesan cheese container.
Apply dry shampoo at the roots of the hair. Use a brush or a comb and separate sections of your hair, shaking the powder onto your scalp. Massage it into the surrounding hair and let it sit for approximately two minutes--just enough time to absorb all that oil! When you're finished brush the dry shampoo through your hair until it is no longer visible.
I was eventually able to cut my styling time down to nearly nothing, by the way. It mostly involved giving up on straight hair forever and embracing my natural curls, but I have to say that dry shampoo helps too. It hasn't replaced my regular hair-washing routine, but it does help me get an extra day or two when I need it.
For something that's simple and inexpensive to make, all-natural homemade dry shampoo is very effective!
Recipe by DIY Natural at https://www.diynatural.com/homemade-dry-shampoo-recipe/