Orange stains on white clothes: is your sunscreen to blame?
A post on r/laundry: someone who wears sunscreen religiously came home from vacation, soaked their mostly white clothes in diluted vinegar before a normal wash, and found them covered in orange-brown stains. Was the vinegar a mistake? Would the oxygen-bleach soak they'd started help? The advice online was all over the place.
What the replies said:
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The most upvoted answer: deal with the oily sunscreen film first. Rub dish soap into the dry garment, rinse well, then wash.
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Several people said a citric acid soak worked when nothing else did, though one person poured in a whole bottle with no luck.
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The likely cause, commenters explained, is avobenzone (and to a lesser degree oxybenzone) reacting with minerals in the water, which is why people with hard water know these stains well.
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Some reach for rust-stain removers made for fabric; another warned that detergents with optical brighteners can make the marks look worse.
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Prevention tips: wait a while after applying before putting a shirt on, and pre-treat collars before they hit the washer.
Desk note: CBS News (2024) quoted a similar explanation. Avobenzone, a UVA filter, can oxidize when it meets iron-rich water and discolor light fabrics. The suggested fix: dish detergent first to break down the oil, rinse, then a non-bleach stain remover, air-dry, and repeat if needed. Switching to mineral sunscreen avoids avobenzone, with the trade-off of possible white cast.
How do you get sunscreen stains out? Share what actually worked for you.
Original thread: r/laundry — orange stains after vacation · Reference: CBS News
On an ingredient list, avobenzone usually appears under its INCI name, Butyl Methoxydibenzoylmethane. If you wear a lot of white and live in a hard-water area, that's the name to look for. With stains that have already formed, order matters: get the oil out before hot water or a dryer can set anything. Many people also advise skipping chlorine bleach, which can shift the colour instead of lifting it.