What’s new: Ilia's reformulated True Skin Serum Foundation comes boosted with skincare actives for a brighter, smoother, and more healthy-looking complexion—even after you take it off. What it is: A weightless, medium-coverage foundation with a natural finish—now featuring active levels of smoothing Niacinamide and soothing Allantoin. Shade Descriptions: Sable SF.5: Extra Light with neutral warm undertones Cozumel SF1.75: Very light with golden olive undertones Tavarua SF2: Light with neutral undertones Texel SF3: Light with neutral cool undertones Kunoy SF4.5: Light-medium with golden undertones Chios SF6: Medium with neutral undertones Aran SF6.5: Medium with neutral peach undertones Catalina SF7: Medium with warm golden undertones Milos SF8: Medium with neutral cool undertones Cres SF8.75: Medium-deep with olive undertones Maraca SF9: Deep with neutral warm undertones Senja ST9.25: Deep with golden olive undertones Bonaire ST9.5: Deep with warm undertones Montserrat SF10: Deep with red golden undertones