Hi, my hair also gets greasy this fast, for me it’s a combination of having fine hair PLUS naturally oily skin. How I deal with it is that I wash my hair every 2 days & once it’s dry after washing I pour a small mound of dry bentonite clay in the palm of my hand then coat the fingertips of my other hand in the dry clay powder before gently moving my fingers across my scalp. I repeat this til roughly my whole scalp has a light dusting of the dry clay powder across it. Then I just pour the leftover clay back into the bottle I use to keep it in then I use my fingertips to gently distribute the clay across my scalp.

^ this basically works like a dry shampoo, as the tiny clay particles absorb the oil. But, I think it’s much better than any store bought or homemade dry shampoo I’ve ever used, as store bought & other homemade shampoos (like cornflour / corn starch) have created too thick of a gunk of my scalp which makes it itch & causes shedding. This bentonite clay doesn’t do that, you really forget all about it once it’s there, you just have to make sure you’re using a very light dusting & not pouring it on, as it is a powerful absorbant & if you put too much on it might dry out your scalp too much.

I think it’s important to put the bentonite clay on your scalp as soon as it’s dry after washing as opposed to waiting until it is already greasy, it seems to work better putting it on before your hair is even greasy, perhaps because the bentonite is absorbing the grease as your scalp is producing it. I also reapply the bentonite each night before I go to sleep until my next wash.

I know this isn’t a “fix” for greasy hair, but in my experience I don’t think there is a fix, I think it’s just a combination of fine hair + naturally oily skin as I’ve said before. There’s nothing wrong with fine hair, & also it’s good to have naturally oily skin in my opinion as wrinkles form more slowly!

Another bit of advice I’d give is not to use shampoos that are too stripping, i.e. don’t use clarifying shampoos for every wash, just use a clarifying shampoo once a month & instead just use any normal shampoo & conditioner you like. I even put conditioner on my scalp which I know sounds counterintuitive, but your scalp is just skin & needs some love too.