Will my skin be photosensitive after using the Time Traveler Serum? 

SPF is recommended as part of your daily skin care regimen no matter what other products you are using. Intelligent Nutrients does not currently offer a sunscreen due to the limited performance delivered by more naturally based titanium and zinc based FDA allowed ingredients and preference not to use the chemically based ingredients. We recommend a sunscreen that is a fit with your personal ingredient and performance philosophy.