Rit Whitener & Brightener: 

• Rit Whitener & Brightener Laundry Treatment safely whitens whites and brightens colors without bleach. It's ideal for whites with colored trim or prints. It's safe for all washable colorfast fabrics including cotton, polyester blends, nylon, rayon, wool, linen and silk.
• Brightener for dingy whites and colored fabrics
• Safe for all washable colorfast fabrics
• Available in: 8 fl oz (liquid)