The Obagi Sun Shield Tint Broad Spectrum SPF 50 Sunscreens leverage the best of both physical and chemical formulas to provide sheer protection that actively safeguards skin from harmful UVA/UVB rays and defends against IR rays. Through groundbreaking thermic micro-shield crystal technology, these damaging rays are effectively reflected or dispersed at the skin's surface before causing harm to your skin. This perfect blend of protection and defense is harnessed in two shades as ideal complexion enhancers for most skin types. Offered in warm and cool tints to beautifully complement the unique undertones of your skin.