This product works for me, well its not a strong one, doesn't have really strong smell (usually it has a strong smell and also can burn your skin if you get sun exposure after the application of this oil) , I was told that it probably hasn't high concentration, and that could be the reason, but it works if you use regularly twice. Won't work on all spots at a time, some spots takes bit longer to show positive signs. It has a good price with the offer of free delivery when order over $80, so I am going to continue with this, at least I am seeing good signs. Delivery is very fast, much quicker than you expect.