I suffered from acne for over 20 years. I have tried everything i.e: Accutane, BP, Retin A, antibiotics, spent hundreds on skin care products, birth control pills, ACV, accupuncture etc. But I have finally found something effective for glowing acne free skin!
I have been drinking 1-3 cups of decaff green tea daily, for about 2 weeks. But I suspect the thing that has really helped is a toner I made myself, using green tea with a few other added natural ingredients. I apply to my skin with a cotton pad every morning and night after cleansing.
I make the toner with: green tea (leave a green tea bag in hot water for a few minutes then add the tea) fresh lemon juice, aloe vera gel (the clear not green one), witch hazel, honey (the best kind is Manuka + UMF 10 honey) and a few drops of tea tree oil. Shake up in a bottle and try leave on during the day or overnight alone.
It does make your skin slightly dry and tight, so you can put a few drops of Jojoba oil or moisturiser on afterwards. It makes me very happy to wake up and not find a spot on my face for the first time since I can remember.
Something else that has helped is an aspirin mask a couple of times per week:
Try honey, aloe vera and 2-3 tabs of aspirin crushed then leave on for 15 mins (plus try tea tree or rosehip oil added)
I think eating well and using products that are not full of chemicals keeps your skin clear too, but this has definitely worked amazingly well for me!