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Stage 4. SEAL

₩29,000

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O° Hydrogel Mask is the SEAL stage of SLOAID Skin Architecture. Designed with a serum-rich hydrogel texture, it fits closely to the skin to help provide cooling hydration, comfort, and a calm finish after active care or a long day.

  • Serum-rich hydrogel mask
  • Designed for Stage 4. SEAL
  • Cooling, close-contact texture
  • Can be used as a short cooling reset or overnight care
  • Suitable after ampoule care or active skincare routines
  • Helps skin feel refreshed, hydrated, and comfortable

Water, Glycerin, Methylpropanedio, 1,2-Hexanediol, Butylene Glycol, Carrageenan, Glucomannan, Ceratonia Siliqua (Carob) Gum, Xanthan Gum, Polyglyceryl-10 Laurate, Centella Asiatica Leaf Extract, Dextrin, Disodium EDTA, Hydrolyzed Collagen, Sodium Hydroxide, Ethylhexylglycerin, Sodium Hyaluronate, Propanediol, Benzyl Glycol, Hydrolyzed Glycosaminoglycans, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Centella Asiatica Leaf Vesicles, Hydroxypropyltrimonium Hyaluronate, Hyaluronic Acid, Sodium Acetylated Hyaluronate

BENEFITS

Calm - Helps comfort skin that feels heated or stimulated.

Cool - Provides a cool temperature on contact.

Hydrate - Supports a soft, hydrated finish.

Seal - Completes the ritual with calm comfort.

The time you put behind everything else.

The day keeps moving.
Work, family, plans, and everything in between often come first.
Now, it is time to care for your skin and your time again.

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Skin can show the pace of your day first.

A day under the sun.
 A heated moment after movement.
 Dryness during travel.
 A tired-looking face at the end of a long day.

When skin feels unsettled, it does not always need more products.
It needs a calm finish.

A hydrogel formed from serum-rich care.

O° Hydrogel Mask is not simply a sheet carrying serum on the surface. Its hydrogel structure is formed from a serum-rich base, allowing the mask itself to become part of the care experience. This helps moisture stay close to the skin while delivering a soft, cooling feel.

The flexible hydrogel texture is designed to follow the curves of the face and sit closely on the skin. This close fit helps create a comfortable masking environment, allowing the skin to feel wrapped in cooling hydration.

Use it as a short cooling reset when skin feels warm, dry, or tired-looking, or leave it on as overnight care when your skin needs a longer calming ritual. The mask is designed to support both quick comfort and extended hydration.

The hydrogel texture helps the mask stay in place without the heavy, dripping feel of a traditional serum-soaked sheet. It provides close-contact care while keeping the masking experience clean, comfortable, and easy to repeat.

As the SEAL stage of SLOAID Skin Architecture, O° Hydrogel Mask helps complete the routine with hydration, comfort, and a calm-looking finish. It is designed for the final moment of care — when skin needs to feel settled, refreshed, and well cared for.

Product Difference

Not a serum-soaked sheet. A hydrogel formed from solidified serum. Many sheet masks are soaked or infused with serum.
SLOAID 0° Hydrogel Mask is formed from solidified serum hydrogel, allowing the entire mask to fit closely to the skin as the medium for calming care.

Key Points
  • Solidified serum hydrogel structure
  • High-adhesion hydrogel fit
  • From short cooling care to overnight care
  • A calming-focused hydro barrier mask designed to stay on skin
Use Moments
  • After sun
  • After workout
  • During travel
  • Before makeup
  • After your ampoule ritual
  • When you need a short cooling reset
  • When you want overnight calming care
  • At the end of a long day, when it is time to care for your skin and your time
How to Use
  1. Cleanse and prepare the skin.
  2. Apply your ampoule or preferred care step.
  3. Apply the 0° Hydrogel Mask and fit it closely to the face.
  4. Use it as a short cooling reset or overnight care.
  5. Remove and gently pat in the remaining essence to finish.

Routine Flow

Prepares the skin for what comes next.

Supports a more receptive moment for delivery-focused care.

Provides concentrated active care to support the skin’s visible condition.

Helps calm, hydrate, and finish the routine with comfort.

Start your SEAL ritual. Start with a single calming finish, or experience the full SLOAID Skin Architecture. 
Choose the ritual your skin needs from a short cooling reset to overnight calming care.

FAQ

You can use it as needed, depending on your skin condition. It is especially helpful when skin feels warm, dry, tired, or in need of a calm finish.

Yes. After exercise, cleanse the skin first to remove sweat and buildup, then apply the mask to help cool and comfort the skin.

Refrigeration is not required. For an extra cooling feel, you may place it in the refrigerator briefly before use. Store in a cool, dry place away from direct sunlight.

It is designed with a comfort-focused approach. Since every skin condition is different, sensitive skin types may start with a shorter use time and adjust according to how the skin feels.

Yes. Use it before makeup when your skin needs hydration and a smoother-looking base. After removing the mask, gently pat in the remaining essence and allow the skin surface to settle before applying makeup.

Yes. It can be used as overnight calming care if it feels comfortable on your skin. For first use, we recommend starting with a shorter wear time before trying overnight use.