Look--fine-mist hydration will simply evaporate unless you LOCK IT IN.  So if you're just spraying this on willy-nilly, you're not making the best use of this wonderful water. How to turn a fleeting droplet into a drenching reservoir? Well, If you've ever read Dr. Leslie Baumann's logically on-point book&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/The-Skin-Type-Solution-Are-You-Certain-Tthat-You-Are-Using-the-Optimal-Skin-Care-Products-Revised-and-Updated/dp/0553383302/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">The Skin Type Solution: Are You Certain Tthat You Are Using the Optimal Skin Care Products?  Revised and Updated</a>, it all makes sense: