Nellie's Oxygen Brightener is a concentrated powder that serves as a chlorine-free alternative for brightening whites and maintaining colors. It uses sodium percarbonate to release hydrogen peroxide during the wash. This process is effective for stain oxidation while remaining gentle on the structural integrity of elastic fibers found in modern athletic wear.
The formula is designed to be septic-safe and hypoallergenic, breaking down into water, oxygen, and soda ash. For maximum effectiveness, this brightener performs best in water temperatures above 140°F. If washing in cold water, pre-dissolving the powder in a small amount of hot water before adding it to the drum can help prevent undissolved granules.
Specifications include a reusable vintage-style tin that provides a plastic-free storage option. Because the tin can be sensitive to moisture, ensuring the lid is properly seated will help prevent the powder from clumping. This product contains fewer fillers than many big-box brands, meaning a little goes a long way for most standard loads.
For a complete laundry system, this brightener can be paired with Nellie's Laundry Soda to achieve a thorough, residue-free clean.
Find more specialized cleaning additives in our stain removal pens and sprays section.
