i bought 2 jars of the stuff, the first jar was good , it helped considerably!
the 2nd jar had a thick crust on the top, about 1/4 to 1/2 inch thick,,i sent several messages and tried a call but got no response,, i needed to know if the product was o.k. to use,, i doubt i will buy more , it's like paying double when one jar is good and the other is ??????????