17% zinc oxide
Round Lab Birch Juice Mild-Up UVLOCK Sunscreen
+4.1 L*
Predicted from the label's 17% zinc oxide (FDA label of January 7, 2026) for skin of L* 55. Range 1.8 to 6.5 L*, the model's typical miss on a product it was not fitted on.
By skin tone, lighter to deeper.
- Skin L* 65+3.2 L*+0.8 L* to +5.5 L*
- Skin L* 60+3.6 L*+1.3 L* to +6.0 L*
- Skin L* 55+4.1 L*+1.8 L* to +6.5 L*
- Skin L* 50+4.6 L*+2.2 L* to +6.9 L*
- Skin L* 45+5.0 L*+2.7 L* to +7.4 L*