Review (4/5): Beware - there is a version of Blistex DCT that does not contain sunblock.
I like the Blistex DCT SPF20 product and have used it for years. When I reordered what got delivered was Blistex DCT but without any stated SPF. Indeed, in the list of its ingredients I find none that are regarded as active sunblock ingredients.
Buyer beware. The product delivered was not the one advertized in the Amazon listing.