A 10% Salicylic Acid peel ingredients are listed as:
Medical Grade Salicylic Acid (10%)
Denatured Ethyl Alcohol
If I’m making my own with Salicylic acid powder and propylene glycol can I use just distilled water or if I dilute it to say 4% in an oil like rosehip or evening primrose to keep on overnight? I wouldn’t be storing it, as I’d be using it as soon as I made or later in the day before bed.