You will need 250 milliliters of room temperature water and one tablespoon of sodium thiosulfate. Sodium thiosulfate is often sold in photography supply stores or pharmacies and is commonly used to neutralize chlorine.
Mix the water and sodium thiosulfate until it dissolves completely. Pour the solution directly onto the bleach stain, making sure the area is fully saturated. Allow it to sit for several minutes so the chemical reaction can stop the bleaching process. After that, rinse the garment with cold water and wash it normally. Avoid rubbing the fabric, as rubbing can damage weakened fibers and spread discoloration.
Many people notice that the stained area becomes significantly less visible after this treatment, especially if the bleach exposure was recent.
Second trick. Blending the discoloration
If the stain remains visible after neutralizing, the second method can help blend the faded area back into the surrounding fabric.
Mix equal parts rubbing alcohol and white vinegar in a small bowl. Dampen a clean cloth in the solution and gently dab the stained area. Do not rub. Gentle pressure allows the liquid to penetrate the fibers and redistribute some of the surrounding dye into the lighter spot.
After dabbing for several minutes, rinse the garment with cold water. Let it air dry and examine the area. If necessary, repeat the process until the stain becomes much less noticeable or disappears entirely. This technique works especially well on darker colors and cotton fabrics.
