ultimate sun serum is the newest addition to TULA’s SPF category with the highest protection yet against UVA/UVB rays. It also defends against the damaging effects of pollution and bluelight. The mineral fluid sunscreen has a silky, weightless formula & is clinically proven to help minimize the look of excess oil & helps brighten the look of dark spots. Over time, probiotic extracts and pentapeptides work to prevent the appearance of early signs of aging, like fine lines & wrinkles. In addition to being dermatologist tested and non-comedogenic, ultimate sun serum is formulated with TULA’s patent pending S6Pro Complex® – a proprietary super six blend of prebiotics & probiotic extracts to help improve skin smoothness & maintain skin balance.