I need a moisturizing foundation for the arid climate I live in. I took the Hydra foundation to Puerto Rico for vacation and started using it as my only facial spf because the sunscreen I packed left streaks on my face. The Hydra foundation blocked the sun on its own beautifully. No sunburn on my face and I went snorkeling, swimming, and hiking for a week with only one daily application (not endorsing this practice). You can see from my picture that my skin fared very well despite the humidity, sun, and water. I also use Estee Lauder's facial creams and serums daily and think it is doing its job well as I am 57. Originally posted on www.esteelauder.co.uk