La Roche-Posay thermal spring water is simple but wonderful, especially if you live in a dry climate or spend your time in an air conditioned or heated home or building for prolonged periods. I live in a climate that's dry almost all year round and can see a real difference when I'm in humidity- my skin looks more hydrated and wrinkles look less noticeable. For me, this thermal spring water has a similar effect. It helps keep my skin looking hydrated and counteracts some of the effects of the dry climate and environment- my skin looks more like it does in humid weather. I really love using this thermal water after washing my face, but this small size spray bottle is staying in my purse as it's a perfect size to use on-the-go. I've purchased the larger, more economical, size to keep at home for after washing my face or to use anytime my skin feels dry or I feel hot or uncomfortable.&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/La-Roche-Posay-Thermal-Spring-Water-5-20-Fluid-Ounce/dp/B002NX0B4W/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">La Roche-Posay Thermal Spring Water, 5.20 Fluid Ounce</a>