BPI's ABSOLUTE BROWN DYE™ has proven to be the fastest and longest lasting brown dye we have ever made. In fact, it will tint uncoated and most coated lenses and remain color-true lens after lens. It will tint to luminous transmission (Tv) 20% in 8 minutes. Like the BPI Blue Barrier™ tints, it blocks much of the harmful blue spectrum.

California residents: click link to product SDS and check Section 15 for California Proposition 65 warnings.