Modal

Modal is a second-generation regenerated cellulosic, usually spun from beech wood by a modified viscose process that, like all viscose, still relies on carbon disulfide, though branded TENCEL Modal recovers 99 percent or more of its solvents and water in a closed loop.

Modal feels silky and is prized for softness against skin, with strong moisture absorption and breathability that help it stay comfortable in heat. The health distinction is entirely about who made it. Generic modal runs the carbon-disulfide viscose process, a known worker hazard, and gives you no guarantee about residual solvents or the dyes and easy-care finishes applied afterward, some of which can release formaldehyde. Branded TENCEL Modal recovers its chemicals in a closed loop, audits its beech sourcing, and certifies the finished fiber as safe for skin contact. The fiber against your skin is comfortable either way; the certainty about residues and finishes is what separates the two.

Look for the branded TENCEL Modal name to confirm closed-loop production and skin-safety certification, plus OEKO-TEX STANDARD 100 on the finished garment; treat unbranded modal as ordinary viscose.

TENCEL Modal generates roughly 50 percent lower carbon emissions than conventional modal and uses audited, regrowing beech sourcing.