How to Clean and Care for an LED Face Mask

An LED mask sits in direct contact with the skin for ten minutes at a time, several times a week, then usually goes straight back onto a shelf. Sebum, sweat and residual product accumulate on the inner surface, and that surface returns to your face. This is the least glamorous article in the Journal and one of the most useful.

Why this matters more than it sounds

• Sebum and skin cells transfer to the inner surface and are pressed back into the skin at the next session.
• A film of residue on the light-emitting surface scatters light and reduces the dose reaching your skin.
• People who develop breakouts after starting LED therapy have usually developed a hygiene problem rather than a reaction to light.
• Moisture trapped around ports and seams is the most common cause of premature device failure.

The after-every-session routine

Thirty seconds, while the device is still to hand and before it goes away.

• Power off and disconnect completely. Never clean a powered or charging device.
• Wipe the inner surface with a soft, barely damp lint-free cloth — water only is sufficient for most sessions.
• For residue, use a cloth lightly dampened with 70% isopropyl alcohol, unless your manufacturer says otherwise.
• Dry immediately and thoroughly with a clean cloth. Do not leave it damp.
• Air dry fully, inner surface up, before storing.

The weekly check

Never do these

• Never submerge the device or hold it under running water. It contains electronics.
• Never clean it while it is charging or switched on.
• Never use acetone, bleach, oven or bathroom cleaners, or abrasive pads — they cloud the light-emitting surface permanently.
• Never use disinfectant wipes containing quaternary ammonium compounds on silicone unless the manufacturer approves them.
• Never dry it with a hairdryer or leave it on a radiator or windowsill. Heat degrades both silicone and LEDs.
• Never store it while damp, folded tightly, or with something heavy on top of it.

Storage and battery care

• Store flat or in its case, away from direct sunlight and away from heat.
• Do not crease a flexible mask along the same fold line repeatedly — that is where seams eventually fail.
• Charge with the supplied cable. Fast chargers intended for other devices are the most common cause of battery problems.
• If you are setting the device aside for months, store it at roughly half charge rather than empty or full.
• Keep the box only if it is your storage solution; otherwise a drawer where you can see the mask is better for adherence.

Should you share a mask?

It is workable within a household provided each person cleans the inner surface with a 70% isopropyl wipe before their own session, and provided nobody with an active skin infection, open lesions or a fresh procedure uses it. If someone in the household has acne, it is worth each person having their own eye shields. Beyond a household, do not share.

When to stop using it

Retire or service a device if the shell is cracked, the silicone is splitting at a seam, a section of LEDs no longer lights, the charging port is corroded, or the device becomes warm rather than mildly so. A mask with a dead segment is delivering an uneven dose, which quietly undermines the entire protocol.