I bought the balm due to the many positive reviews and am a little disappointed. Turning it regularly for several of weeks, but the cornea is perhaps up to max. 20% declined. There seems to be no less than that, even though the manufacturer promises up to 75%. Property me now not hoped for 75%, but already more than 20, at least for the price. Because it has a pleasant odor, there are at least 3 stars.