1. USE A BROAD SPECTRUM SPF. Sunscreen is the single most important anti-aging product for your skin. Broad-spectrum SPF protects your gorgeous face against both UVB and UVA rays, which can lead to signs of aging and cancer. 2. SKIP THE SOAP. The use of soap-based cleansers can irritate the skin’s protective barrier and raise the pH level, leading to sensitivity, wrinkles, acne and inflammation. All Dermalogica cleansers are soap free, and pH-balanced to protect the skin’s na