You dont have to go for the expensive ones, not always the price guarantees a product free from chemicals!
At least where I am from some organic or vegan product brands are almost the same price as any other product containing parabens, aluminium etc.
You just have to familiarise yourself with whats in the products and stick to ones that are "good" and fits your needs :)
And I believe that it is better to have some imperfections rather than very unpleasant diseases.
Thank you for reading!