Will Xtra bleach alternative detergent harm the elastic in underwear?

Xtra bleach alternative detergent is generally safe for washing fabrics, including underwear, but it may contain ingredients that could potentially weaken elastic over time with frequent use. To preserve the elasticity, it's best to follow the care instructions on the underwear label and avoid using bleach alternatives frequently. Washing in cold water and air-drying can also help maintain the integrity of elastic materials.