Some sunscreens contain ingredients that react with minerals in water, creating rust-like orange stains on towels.Clues:
Stains appear after sun exposure
Only certain towels are affected
Washing doesn’t remove the marks
This is another example of a chemical reaction, not simple dirt.
🧴 Other Contributing Factors
Several additional factors can also lead to orange stains:
✔️ Laundry Products
Some detergents or fabric softeners can react with minerals in hard water, causing discoloration.
✔️ Old Plumbing
Rust from aging pipes can enter your water supply and stain fabrics.
✔️ Cleaning Products
Bathroom cleaners or
