Thank you! I'd love to hear if your sister finds it effective.I know the answer, you guys!
Because of its antibacterial/antimicrobial properties it's very good for acne prone users. It helps decongest pores, hydrate, and sooth irritated skin. I just made some acne soap for my sister that is 16% neem. It be ready for her to try in about a week. Just a tip, the neem does give the soap a smell (I thought it smelled sort of like coffee), but it did fade and become nonexistent after curing.