This summer was incredibly humid and hot, and my foundation kept melting off. But after discovering Estée Lauder Double Wear Foundation, those worries disappeared. I haven't seen a foundation as effective as this for covering freckles caused by UV rays, as well as the age spots and blemishes that naturally appear as I get older. Also, first of all, it applies thinly, so it doesn't feel heavy on the skin. It is also a great product to mix with oil or moisturizer in the winter. I recommend it to anyone struggling with blemishes.