You've swapped your skincare to fragrance-free. You've bought gentler pyjamas. And your skin is still irritated by morning. Before you blame yourself — or your sheets — open the laundry cupboard. Some of the most common skin irritants in your house are things you're deliberately adding to the wash.
Fabric softener: the beautifully scented villain
Softener works by coating fibres in a thin film of conditioning chemicals — that's literally the mechanism. The film doesn't fully rinse out; it's designed to stay on the fabric, which means it stays against your skin all night. For sensitive or eczema-prone skin, that residue (plus its fragrance load) is one of the most frequently cited hidden triggers. Bonus problem: the coating also clogs the fibres of moisture-wicking fabrics, so your breathable sleepwear stops breathing. Skip it entirely on sleepwear, sheets and towels.
Fragrance, in everything
'Fragrance' on a detergent label is a single word covering dozens of undisclosed compounds, and fragrance is among the most common contact irritants going. If your skin is reactive, fragrance-free detergent is the cheapest experiment you'll ever run — give it three or four weeks and watch what happens.
Too much detergent
More detergent doesn't mean cleaner — past a point it means residue, because the rinse cycle can't clear it all. If your clothes feel stiff or faintly soapy, halve the dose. Modern machines and detergents need far less than the cap suggests (the cap is, after all, designed by the people selling the detergent).
Optical brighteners and harsh additives
Many mainstream detergents include optical brighteners — chemicals that stay in fabric to make whites look whiter under light. Like softener, they're designed to remain in the fibre, and they're a known irritant for some sensitive skin. 'Sensitive' formulations usually drop them; it's worth checking.
The sensitive-skin wash formula
Fragrance-free detergent, modest dose, no softener, an extra rinse if your machine offers it, and line-dry where you can. For delicate fibres like TENCEL™ Modal, add a wash bag — it prevents the snags and abrasion that turn smooth fabric rough (every Lumen set ships with our fabric care pouch for exactly this reason).
Getting the wash right protects the investment too: smooth fibres stay smooth, wicking keeps wicking, and your 'gentle' sleepwear stays actually gentle. If you're still deciding which fibre is worth babying, our fabric comparison has the honest rundown.
General information, not medical advice.
