Synthetic fabrics such as polyester, nylon, acrylic, and rayon are frequently cited by dermatologists and textile experts as less healthy for prolonged skin contact compared to natural fibers like cotton, linen, or wool. Because synthetic textiles are petroleum-based and tightly woven, they lack natural breathability and moisture-wicking properties, trapping sweat, heat, and sebum against the skin. This trapped moisture creates an ideal breeding ground for bacteria and fungi, which can exacerbate skin conditions like eczema, contact dermatitis, and body odor, whereas natural fibers allow proper air circulation and moisture evaporation.
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