Yellow Stains on Pillows: Dermatologist Explains Causes and Care Tips
Yellow pillow stains form from sweat, skin oils, saliva and cosmetic residue that seep through the pillowcase. A dermatologist advises washing pillowcases at least weekly and using a protective cover.
Even regularly washed bedding does not always keep a pillow from turning yellowish. Dermatologist Shamsa Kanwal explained why the stains appear and how to look after a pillow, according to the Ukrainian news site Unian.net.
What causes the stains
Sweat, natural skin sebum, saliva, dead skin cells and moisture from wet hair gradually pass through the pillowcase and build up in the pillow. When sweat and skin oils meet the air, they oxidise, which adds to the yellowing of the fabric. People who sweat more at night may notice stains sooner. Face creams, makeup and leave-in hair conditioners also leave deposits.
Doctors note that during eight hours of sleep a person loses roughly half a litre to one litre of water through breathing and sweating. The amount depends on body size, metabolism and room temperature.
Why it matters for health
The American Academy of Dermatology says oils in some conditioners and hair styling products can clog pores and cause breakouts along the hairline, on the forehead and on the neck. If a hair product causes acne, the academy recommends washing pillowcases and sheets and stopping use of that product.
The National Eczema Association has reviewed studies that link higher levels of Staphylococcus aureus bacteria to more severe eczema flare-ups. This does not mean a yellow pillow is to blame, but bacteria are one of the factors considered in eczema. Dust mites, meanwhile, thrive in warm, damp bedding, and their allergens can cause sneezing, a blocked nose and asthma symptoms. The American Academy of Allergy, Asthma and Immunology recommends washing bedding weekly and using dust-mite-proof covers.
How to care for a pillow
- Wash pillowcases at least once a week, and more often if you sweat heavily, have oily or acne-prone skin, or use many hair and skin products.
- Use a removable, washable protective cover.
- Apply face products at least an hour before bed.
- Dry wet hair before going to sleep.
- Wash the pillow according to its label and make sure it is fully dry before putting the pillowcase on.
- Replace most pillows every one to two years, depending on the material and care.
