staff pick

111SKIN Y Theorem Bio Cellulose Facial Mask

Mask • Sheet • 5 Masks

$135

30% Off with code SUMMER30

EARN +1350 POINTS WHEN PURCHASING THIS PRODUCT

Product Benefits

Repairs, strengthens, and supports skin regeneration and barrier repair
Delivers lasting moisture to leave skin feeling soft, plump, and visibly refreshed
Calms redness and inflammation, making it ideal for post-procedure or sensitive skin

Expert Review

Revives dull, tired skin for a healthy, glowing complexion and fortifies the skin against environmental stressors and future damage.

Product variants

In stock & ships same day! *

Free Shipping for US Orders

Free Returns No questions Asked

Earn rewards with our Loyalty Program

Authenticity Guaranteed

All products at DermStreet are authentic guaranteed. Trusted by thousands, we’ve earned over 1,600+ 5 star reviews.

The 111SKIN Y Theorem Bio Cellulose Facial Mask is a deeply soothing and reparative sheet mask designed to strengthen, hydrate, and revitalize stressed or post-procedure skin. Made from advanced bio-cellulose material for superior adhesion and ingredient delivery, this mask is infused with the brand’s signature NAC Y²™ complex, along with amino acids and antioxidants, to help reduce inflammation, support skin regeneration, and restore a healthy, radiant glow. Ideal for sensitive, dehydrated, or compromised skin, it delivers instant comfort and leaves the complexion visibly plumper, smoother, and more resilient.

All Skin Types

Aqua / Water / Eau, Glycerin, Butylene Glycol, Mannitol, Ammonium Glycyrrhizate, Trehalose, Alcohol, Ectoin, Panthenol, PEG-60 Hydrogenated Castor Oil, Phenoxyethanol, Caffeine, Carbomer, Zinc Gluconate, Magnesium Ascorbyl Phosphate, Butyrospermum Parkii (Shea / Karit) Butter, Potassium Hydroxide, Aesculus Hippocastanum (Horse Chestnut / Marron) Seed Extract, Citrus Paradisi (Grapefruit / Pamplemousse) Fruit Extract, Ethylhexylglycerin, Allantoin, Disodium EDTA, Hydrogenated Lecithin, Prunus Armeniaca (Apricot / Abricot) Kernel Oil, Phenethyl Alcohol, Centella Asiatica Leaf Extract, Acetyl Cysteine, Glycyrrhiza Glabra (Liquorice / Rglisse) Root Extract, Silk Amino Acids, Maltodextrin, Pentapeptide-59, Benzyl Alcohol, Potassium Sorbate, Sodium Benzoate, Fragrance / Parfum.

To apply the 111SKIN Y Theorem Bio Cellulose Facial Mask, start with clean, dry skin and carefully remove the mask from its protective layers, placing it onto the face and smoothing it to ensure full contact, leave on for 20 minutes to allow the reparative ingredients to absorb, then remove and gently pat any remaining serum into the skin without rinsing; use weekly or as needed to soothe, hydrate, and restore a healthy, radiant complexion.

All Orders Are Shipped Same Day

Free U.S. Shipping Orders Over$50 View Our Shipping Policy

Return Policy: View Our Return Policy

How Can We Help?

Do you have any questions, concerns, or need assistance choosing a product? We're here to help!

Shop 111SKIN

30% Off with code SUMMER30

The 111SKIN Celestial Black Diamond Lifting and Firming Face Mask is a powerful, multi-section hydrogel mask designed to visibly lift, firm, and contour the face for a sculpted, youthful appearance....

best seller

4.47

(15 reviews)

111SKIN Celestial Black Diamond Lifting and Firming Face Mask

Regular price $140

Same day shipping*
30% Off with code SUMMER30

The 111SKIN Repair Night Cream NAC Y² is a luxurious, restorative moisturizer formulated to deeply nourish, regenerate, and repair the skin while you sleep. Infused with the brand’s signature NAC...

staff pick

4.64

(11 reviews)

111SKIN Repair Night Cream NAC Y2

Regular price $280

Same day shipping*
30% Off with code SUMMER30

The 111SKIN Y Theorem Bio Cellulose Facial Mask is a deeply soothing and reparative sheet mask designed to strengthen, hydrate, and revitalize stressed or post-procedure skin. Made from advanced bio-cellulose...

staff pick

4.46

(13 reviews)

111SKIN Y Theorem Bio Cellulose Facial Mask

Regular price $135

Same day shipping*
30% Off with code SUMMER30

The 111SKIN Rose Gold Illuminating Eye Mask is a luxurious, radiance-boosting treatment designed to brighten, hydrate, and smooth the under-eye area. Infused with 24K Gold, Damask Rose, and the brand’s...

#1 Trending

4.6

(10 reviews)

111SKIN Rose Gold Illuminating Eye Mask

Regular price $110

Same day shipping*
30% Off with code SUMMER30

The 111SKIN Antioxidant Essence NAC Y² is a revitalizing pre-serum treatment designed to hydrate, protect, and prep the skin for optimal absorption of your skincare routine. Infused with the brand’s...

4.7

(10 reviews)

111SKIN Antioxidant Essence NAC Y2

Regular price $105

Same day shipping*
30% Off with code SUMMER30

The 111SKIN Black Diamond Contour Gel is a high-performance, targeted treatment formulated to lift, firm, and smooth the delicate contours of the face. Infused with cutting-edge peptides, diamond particles for...

4.73

(11 reviews)

111SKIN Black Diamond Contour Gel

Regular price $165

Same day shipping*
30% Off with code SUMMER30

The 111SKIN Wrinkle Erasing Retinol Patches are advanced, targeted treatment patches designed to visibly reduce the appearance of fine lines and wrinkles overnight. Infused with precision-dose retinol, peptides, and skin-rejuvenating...

4.45

(11 reviews)

111SKIN Wrinkle Erasing Retinol Patches

Regular price $190

Same day shipping*
30% Off with code SUMMER30

The 111SKIN Black Diamond Hand Cream is a rich, anti-aging treatment designed to deeply nourish, smooth, and rejuvenate the hands. Infused with Black Diamond particles to enhance the delivery of...

Quick Shop

4.7

(10 reviews)

111SKIN Black Diamond Hand Cream

Regular price $75

Same day shipping*

Quick Shop

Shop 111SKIN

This mask is ultra-soothing and leaves my skin dewy, plump, and calm.

After using this mask, my skin feels deeply hydrated and looks visibly brighter. It’s perfect after a long flight or when my face feels stressed and tired.

This is one of the best sheet masks I’ve ever used. The bio-cellulose material clings perfectly to the skin, allowing the serum to absorb beautifully. My complexion looks refreshed, smoother, and more radiant every time I use it. It’s my go-to after late nights or before events.