ADVERTISEMENT
Some forms of vitamin C oxidize when exposed to air. When they transfer to a towel, they can leave behind pale orange stains that darken over time.
Makeup
Foundations, bronzers, and powders with orange undertones cling to towels even after washing.
3. Laundry Detergents and Fabric Softeners Might Play a Role
Some detergents contain brighteners or dyes that react unpredictably with minerals in water. Hard water can also prevent detergent from fully dissolving, leaving residue that discolors towels.
Fabric softeners add to the problem by leaving a waxy coating that traps stains in the fibers.
