I'm using 4OHT in Penetrate and I noticed that the solution is not very oily and dries almost instantly. Transport Matrix has more oil in it and takes much longer to dry. I'm concerned that the Penetrate dries so quickly that the PH is not going to have a chance to "penetrate." Anyone have any thoughts as to whether the quick-dry quality is a problem? No one over at Nutraplanet seems to know. For now, I'm putting 4Derm right over the top of the Penetrate in the hope that the oiler solution will hold the 4OHT on the skin longer. Thanks.