Murad Anti-Aging Moisturizer SPF 20. Murad Anti-Aging Moisturizer SPF 20 reduces blemishes, fights the signs of ageing and provides powerful protection from damaging UV rays. The unique formula contains Willow Bark Extract to control oil production and Kombucha Collagen Defence not only stimulates Collagen production but prevents it from breaking down. Skin is left smooth, youthful and blemish-free!