What kind of skin do you have? I have slightly oily skin, so I only use very light moisturizers, if I use one at all. Contrary to what the industry will have you believe, not everyone needs a moisturizer. If your skin produces enough natural oils, there's no sense in adding more oil to your face. For me, in the summer, usually if I put sunscreen on, that's enough. I use sunscreen made by M.D. Forte because it's the lightest sunscreen i've been able to find and absorbs well into your skin. For sunscreen, make sure to get a sunscreen with either titanium or zinc dioxide, which are the active ingredients that block harmful UV rays (none of Kiehl's sunscreens have these ingredients.) I've used pretty much every brand out there, and my favorite moisturizer is one made by Molton Brown called the Instant Matte moisturizer. It's very light and doesn't leave your face shiny. Kiehl's makes good ones too, and the classic ultra facial moisturizer is good. I like the Molton Brown one though better because it has a more pleasant smell. Another brand to look at is Peter Thomas Roth. The oil-free moisturizer is good. Let me know if you have any other questions. Skincare is a favorite topic of mine.