That "Natural" Fragrance Ingredient Is Causing Skin Allergies

Linalool is in your laundry detergent, shampoo, lotion, and candles. When it breaks down, it causes allergic contact dermatitis. Itchy, red, blistering skin. Confirmed by immunological testing.

What the Study Found

A 2026 study confirmed that repeated exposure to hydroperoxides of linalool induces immunologically verified allergic contact dermatitis. Linalool itself isn't the problem. When it oxidizes (exposed to air), it forms hydroperoxides that trigger immune-mediated skin reactions.

Linalool is one of the most common fragrance ingredients in the world. It's listed as "fragrance" or "parfum" on labels. You find it in soaps, detergents, perfumes, cleaning sprays, and air fresheners.

What You Can Do

Choose fragrance-free products. If you react to scented products, linalool oxidation products may be the cause. Keep products sealed to reduce oxidation. Check ingredients for linalool specifically.

Browse our non-toxic home essentials for fragrance-free options.

Also see non-toxic kitchen essentials for safer alternatives.

Source: Linalool Allergic Dermatitis Study (2026).