The best laundry detergent for eczema is one that’s fragrance-free, dye-free, and liquid rather than powder. No single brand works for everyone, but products carrying the National Eczema Association (NEA) Seal of Acceptance have been clinically tested for irritation and sensitivity, making them the safest starting point.
Why Detergent Matters for Eczema
Skin barrier dysfunction is a hallmark of eczema. The surfactants in laundry detergent can alter the structure of that barrier, increasing the penetration of allergens and irritants into the skin. Even after a wash cycle finishes, detergent residue clings to fabric fibers and sits against your skin all day or night. That residue can cause redness, dryness, and increased water loss through the skin, all of which make eczema flare.
Research in mice has shown that detergent residue on skin followed by allergen exposure leads to allergic skin inflammation, including skin thickening and immune responses that mirror human eczema. This is especially concerning for infants, whose skin pH is naturally higher (ranging from 6.3 to 7.5), whose skin barrier is more fragile, and whose immune system is still developing.
Ingredients That Trigger Flares
Three categories of detergent ingredients cause the most trouble for eczema-prone skin:
- Fragrances. Synthetic scents are the most common trigger. Compounds like limonene (used for citrus scents) and linalool (used for floral scents) are known to cause allergic reactions in sensitive skin.
- Dyes. The blue or green tint in many popular detergents comes from added dyes that can irritate skin on contact.
- Preservatives. Ingredients like parabens and formaldehyde-releasing chemicals are added to extend shelf life but can trigger allergic skin reactions.
“Fragrance-Free” vs. “Unscented”
These two labels do not mean the same thing, and the difference matters. Fragrance-free means no fragrance chemicals or masking scents were used in the product at all. Unscented means the product may still contain chemicals that neutralize or cover up the smell of other ingredients. In other words, an “unscented” detergent can still have fragrance compounds in it. Always look for “fragrance-free” on the label.
Liquid Detergent Over Powder or Pods
Both the National Eczema Association and the Pierre Fabre Eczema Foundation recommend liquid detergent over powders or tablets. Liquid formulas dissolve more completely in water and are far less likely to leave residue on fabric. Powders and tablets are more caustic by nature and often don’t fully dissolve, leaving gritty irritant deposits in clothing fibers. You can also easily control the amount of liquid detergent you use. A heaping tablespoon is typically enough for a standard load, which is less than most manufacturers recommend on the bottle. Using less detergent means less residue.
The NEA Seal of Acceptance
The National Eczema Association runs a certification program for laundry products, household cleaners, and personal care items. To earn the Seal of Acceptance, a product must pass clinical safety testing for sensitivity, irritation, and toxicity. The testing must include participants of different skin types, genders, and ages, and animal testing is not accepted.
Products with the Seal cannot contain any ingredient on the NEA’s “Ecz-clusion List,” a catalog of known eczema triggers. They also cannot contain any fragrance, chemical UV absorbers, or formaldehyde releasers. You can search the full directory of approved laundry detergents on the NEA website. Several widely available “free and clear” detergents from major brands carry the Seal, so you don’t necessarily need a specialty product.
Baby Detergent: Is It Better?
Not necessarily. Baby detergents are marketed as gentler, but many fragrance-free, dye-free adult detergents perform just as well for sensitive skin and clean more effectively. If your baby has eczema, a fragrance-free liquid detergent is a better choice than a baby-specific product that may still contain mild fragrances or dyes.
If you’re switching from a baby detergent to a regular one, test wash a single piece of your child’s clothing first and watch for a reaction before washing a full load. One exception: cloth diapers should always be washed separately with a mild detergent in hot water, with a double rinse, since detergent residue in that area is especially likely to cause irritation.
Skip the Fabric Softener
Liquid fabric softeners and dryer sheets are loaded with fragrances and chemical coatings designed to stick to fabric, which is exactly the problem for eczema-prone skin. If you want softer clothes, wool dryer balls are a practical alternative. They soften fabric mechanically by tumbling against it, without leaving any chemical residue. A splash of white vinegar in the rinse cycle also helps soften clothes and strip leftover detergent residue.
Washing Tips That Reduce Irritation
Choosing the right detergent is only half the equation. How you wash matters just as much.
Adding an extra rinse cycle to every load can make a significant difference. Some washing machines include this automatically on certain programs (like a “baby” cycle), but you can run one manually after your normal cycle finishes. The goal is to flush out as much surfactant residue as possible before clothes hit the dryer. Using less detergent in the first place, roughly half of what the label suggests, also cuts down on what needs to be rinsed away.
Your machine itself can be a source of irritation. Studies have found that bacteria build up inside washing machines and transfer to wash water in subsequent cycles, with as many as one million bacteria found in just two tablespoons of wash water. Running an empty hot wash at the highest temperature setting (around 90°C or 194°F) once a month helps keep the drum clean and prevents bacterial residue from reaching your clothes.
How to Test a New Detergent
Even a detergent labeled for sensitive skin can trigger a reaction in a particular person. The safest approach is to wash a single item you wear against your skin, like an undershirt, in the new detergent. Wear it for a full day and monitor for redness, itching, or dryness. If nothing flares after a day or two, it’s likely safe to switch the rest of your laundry over. If you do react, the problem may be a specific ingredient rather than the entire product category, so trying another fragrance-free brand is worth the effort before assuming all detergents are a problem.