SunGuard works by washing an invisible shield into clothing that helps block more than 96% of the sun's harmful rays from reaching your skin. With the active ingredient TINOSORB® FD, a UV protectant from Ciba Specialty Chemicals, SunGuard can boost the UPF protection of a white cotton T-shirt from UPF 5 to UPF 30.

SunGuard is so easy to use! Add one package of SunGuard to a warm or hot water laundry load along with laundry detergent and you wash in sun protection for up to 20 washings. SunGuard won't change the color or comfort of clothing and is safe for even the most sensitive skin. SunGuard has been featured on Good Morning America and The Today Show and is endorsed by leading dermatologists. SunGuard also has received the Good Housekeeping Seal of Approval as well as the Skin Cancer Foundation's Seal of Recommendation.

** SunGuard is safe for all washable fabrics, however, it will NOT add sun protection to polyester or acrylic fabrics. It works great on cotton, linen, rayon and silk.