There are many fluoride alternatives that you can consider using for your acne treatment. For example, salicylic acid is one of the best options because it's known to unclog pores by reducing sebum production, which may help reduce blackheads and whiteheads. It may also help prevent future breakouts simultaneously, so this would be a great choice if you are concerned with products containing fluoride related to worsening current conditions like oily skin or adult-onset hormonal acne. The only downside here is that you should not use these substances together since they will cancel each other out in terms of effectiveness.