I have used the 30 spf Dormer face cream for years & love it. I am very allergic , but this product is perfect. When it wasn't available I went into panic mode, but after inquiring with the company they assure me that the 15 spf was identical in all respects except for the difference in spf value. I am happy to report that it works perfectly for me although it is not quite as thick as the spf 30. I will return to the spf 30 when it returns, but it is very comforting to know that there is an excellent back up.