111SKIN Bio-Cellulose Facial Mask Set of 5 — Restorative 20‑Minute Hydrating Sheets (0.78 oz)

111SKIN Y Theorem Bio Cellulose Facial Mask is a restorative, bio-cellulose sheet treatment designed to soothe stressed skin, support barrier function, and boost hydration and radiance in one 20-minute application.

This reformulated mask uses a medical-grade bio-cellulose substrate—originally developed for advanced wound care—to deliver a concentrated complex of actives that target dullness, dehydration and the early signs of aging. Infused with the NAC Y² complex and other supportive ingredients, each 0.78 oz sheet in this five-pack acts like a second skin to improve ingredient absorption and leave skin feeling replenished and refreshed after a short treatment.

How does the bio-cellulose material improve results?

The bio-cellulose base adheres closely to facial contours, creating an occlusive layer that helps active ingredients penetrate more effectively than standard cotton or cellulose masks. Its fine fiber network holds a high volume of serum for even delivery across the face without dripping.

• Medical-grade fibers ensure tight contact with skin for optimal absorption.
• High serum retention means longer ingredient contact time.
• Cool, breathable texture soaks into skin rather than sliding off.

What does the NAC Y² complex do for tired-looking skin?

NAC Y² is a targeted blend of three antioxidant actives designed to neutralize oxidative stress and support the skin’s natural protective systems. One component helps stimulate glutathione production, an important intracellular antioxidant, while the other actives work to reduce visible dullness and support a refreshed appearance.

• Antioxidant support to help protect cells from environmental stressors.
• Targets brightness and overall skin tone for a more luminous look.
• Works alongside hydrating ingredients to boost immediate radiance.

How do you use this mask for best effect?

Use on cleansed, toned skin. Remove protective films from both sides, apply the sheet smoothly to the face, and leave in place for around 20 minutes before peeling away and tapping remaining serum into the skin. No rinsing required.

• Apply after cleansing and toning for maximum penetration.
• Relax for 20 minutes—do not exceed the recommended time.
• Pat leftover serum into skin; follow with moisturizer if desired.

How will this mask fit into my skincare routine?

The Y Theorem Bio Cellulose Mask is versatile: use it as a targeted weekly treatment when skin feels stressed or flaky, or as a pre-event radiance booster. It layers well with serums and moisturizers and can be used alone or as part of a multi-step regimen.

• Weekly use for maintenance and barrier support.
• Pre-event treatment to improve glow and evenness quickly.
• Compatible with serums and creams; apply moisturizer after the mask if you need extra barrier protection.

Who is this for: The 111SKIN Y Theorem Bio Cellulose Facial Mask is suited to anyone looking to calm stressed or lackluster skin, boost hydration, and temporarily soften the look of fine lines. It’s appropriate for those wanting a clinical-feeling, at-home sheet mask that supports barrier function and enhances the performance of active ingredients. Avoid if you have a known sensitivity to any ingredient listed on the packaging.

Ingredients

SensAmone P5, Ectoin® natural, NAC Y²