This serum cleared up the hormonal breakouts along my jaw within about two weeks, and the willow bark keeps things calm without drying me out. A tiny amount covers my whole face, so the 1 oz bottle is lasting way longer than I expected.
The willow bark and tea tree combo really calmed down the redness around my chin within about a week. I mix two drops into my moisturizer at night and it hasn't dried me out at all, which I was worried about with tea tree oil.