A product I've been using for at least 10 years, probably closer to 15. I have fair, sensitive skin with a touch of rosacea - it burns easily and I can tan pretty well, with freckles. A really superb product for coverage, SPF and non-clogging, non-greasy protection that has really protected my skin well over the years - not just sun protection, which is the most important protection, but it is called "Citiblock" because it works like a foundation, too - not as pretty or smooth without precise colour matching - but they have improved their formulations over the years and this provides a balance of good coverage, protection, and almost-a-foundation that I just put makeup over. No chemical smell, although I have noticed that if you rub your eyes, you will feel it sting (the chemicals are there but are "low dosage"). Not a 100% physical block, but a combination that is really non-irritating and provides better sun coverage than most products I've tried. I am a fan of Clinique mascaras and this product and almost never buy other Clinique products. But this product stands out, especially for fair, sensitive skin. Have lost count of how many times I've repurchased.