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0° Hydrogel Mask
0° Hydrogel Mask

STAGE 4. SEAL

0° Hydrogel Mask

₩44,900 KRW
₩44,900 KRW

0° Hydrogel Mask is the Stage 4. SEAL product of SLOAID Skin Architecture.
Formed from solidified serum, its hydrogel structure adheres closely across the skin, becoming a medium for soothing care that completes the ritual.

Shipping, Exchange & Returns

Shipping

All orders are shipped from Korea. Delivery usually takes 5–10 business days after shipment. Shipping is free.

Exchange


If your product has a confirmed defect, return shipment is not required unless otherwise requested by SLOAID. Please contact us with a description of the issue and photos showing the defective part. Once confirmed, we will send you a replacement.

Refund


If you prefer a refund instead of a replacement, please contact us with a description of the issue and photos of the defective part. Once confirmed, the refund will be issued to your original payment method. Refunds usually take approximately 10 business days. If you have not received your refund after 15 business days, please contact us at hello@sloaid.com.

Return & Refund


For change-of-mind returns, the product must be unopened, unused, and in its original packaging. Customers are responsible for arranging and paying for return shipping. Once the returned product is received and inspected, the refund will be issued to the original payment method within 10–15 business days.

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Information

SLOAID DEFINE Ampoule is designed with a HA-based ampoule formula combined with moisturising ingredients, vitamin derivatives, peptide complexes, and bio-conditioning ingredients (PDRN, NAD+, EXOSOME).
Benefits

Re-Structuring 
Helps support a firmer-looking skin foundation by caring for the appearance of weakened skin density and resilience.

Refining
Multi-peptides and high-performance active ingredients help refine rough, tired-looking skin texture, while an NAD-based cellular energy formula supports a healthier-looking, more radiant complexion affected by accumulated fatigue.
Ingredients

Water, Butylene Glycol, 1,2-Hexanediol, Glucose, Magnesium Ascorbyl Phosphate, Tranexamic Acid, Sodium Hyaluronate, Porphyra Yezoensis Extracellular Vesicles, Lilium Candidum Cell Extracellular Vesicles, Adenosine, Nicotinamide Adenine Dinucleotide, Copper Sulfate, Sodium Chloride, Lysine HCl, Glycine, Nicotinoyl Tripeptide-1, Copper Tripeptide-1, Sodium Bicarbonate, Decapeptide-12, Caffeoyl sh-Decapeptide-9, Potassium Chloride, Glutamine, Arginine HCl, Calcium Chloride, Hydrolyzed DNA, Disodium Phosphate, Sodium Phosphate, Leucine, Tyrosine, Sodium Pyruvate, Isoleucine, Threonine, Valine, Magnesium Sulfate, Phenylalanine, Histidine HCl, Cystine, sh-Polypeptide-10, sh-Polypeptide-3, Magnesium Chloride, Serine, sh-Polypeptide-85, Cysteine, Proline, Methionine, Inositol, sr-(Methionyl sh-Oligopeptide-75 sh-Oligopeptide-1), sh-Polypeptide-1, sh-Polypeptide-11, sh-Polypeptide-121, sh-Polypeptide-69, Tryptophan, Asparagine, Glutamic Acid, Aspartic Acid, Alanine, Folic Acid, Calcium Pantothenate, Thiamine HCl, Pyridoxine HCl, Niacinamide, Cyanocobalamin, Zinc Sulfate, Thymidine, Riboflavin, Thioctic Acid, Linoleic Acid, Biotin

MADE IN KOREA
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Use moment

Over time, skin’s natural rhythm shifts, 
and the balance it once maintained begins to feel less steady.

A dull-looking morning. 
Texture that does not feel smoothly refined. 
Even good ingredients can feel like they are not quite enough. 
Moisture on the skin, yet a sense that something still feels missing.
When skin does not look clear or smoothly refined, the answer is not more steps.It is focused care that helps support the skin’s natural structure from within.

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Cool
Minimal black eco leaf icon on a transparent background

Soothe
Minimal black water droplet icon on a transparent background

Hydrate
Minimal black time icon with a plus sign on a transparent background

8+ Hour

Key FEATURE

Clinical Report

The Key Insight
With just one mask application, multiple skin-related indicators — including calming, tone, sebum balance, radiance, and wrinkle-related markers — showed changes, helping the skin appear more stable, clear, and refined.

In an internal clinical test using the MarkView 3D skin analysis system, reductions in redness, sebum, melanin, brown pigmentation, and wrinkle-related indicators were observed after 1 and 7 uses, along with improvements in radiance and skin tone indicators. In particular, after 7 uses, melanin decreased by up to approximately 59.5%, brown pigmentation by up to approximately 56.3%, sebum by up to approximately 38.1%, wrinkle-related indicators by up to approximately 30.8%, and porphyrin by approximately 68%.

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Redness Improvement

A reduction in redness indicators was observed after using the hydrogel mask. In an internal test conducted on a 65-year-old male subject, redness levels decreased by approximately 31% after 7 uses.

Melanin Reduction

Melanin indicators showed a decreasing trend in the internal test. A 65-year-old male subject showed an approximately 59.5% reduction after 7 uses, while a 35-year-old female subject showed an approximately 46.7% reduction after 1 use.

Brown Pigment Reduction

Brown pigmentation indicators decreased in both subjects after 7 uses. Based on the internal test, the 65-year-old male subject showed an approximately 25% reduction, while the 35-year-old female subject showed an approximately 56.3% reduction.

Radiance Increase

Radiance indicators showed an increasing trend after use. In particular, in the internal test conducted on the 65-year-old male subject, the radiance indicator increased from 1 to 13 after 7 uses.

Sebum Reduction

Sebum indicators showed a decreasing trend after use. Based on the internal test, the 65-year-old male subject showed an approximately 38.1% reduction after 7 uses, while the 35-year-old female subject showed an approximately 31.6% reduction after 1 use.

Wrinkle-Related Indicator Reduction

Wrinkle-related indicators showed a decreasing trend after repeated use. Based on the internal test, the 65-year-old male subject showed an approximately 11.8% reduction, while the 35-year-old female subject showed an approximately 30.8% reduction.

Porphyrin Reduction

In the internal test conducted on the 35-year-old female subject, porphyrin indicators decreased by approximately 68% after 7 uses.

Improvement in Skin Age Indicator

According to the MarkView analysis, the skin age indicator showed an improving trend after repeated use. The 65-year-old male subject showed a displayed reduction of 6 years after 7 uses, while the 35-year-old female subject showed a displayed reduction of 3 years after 7 uses.

Clinical facial imaging comparing skin age indicators before use and after seven applications of a hydrogel mask
Clinical facial imaging comparing skin age indicators before use and after seven applications of a hydrogel mask

Through advanced release-control engineering, it achieves over 3x greater active ingredient release compared to similar products, enabling a more precise and efficient delivery of active ingredients.

By applying a polymer–peptide bonding structure, the material is engineered to achieve a tensile strength of over 1.8 MPa, delivering approximately three times greater strength compared to similar products from other companies.

Temperature-responsive hydrogel formula that dissolves completely within one minute, leaving no solid residue.

Designed to respond to skin temperature, the formula provides an immediate cooling sensation while maintaining strong temperature recovery performance.
 With verified data showing a –3.5°C reduction in skin temperature and a 95% recovery rate, it supports stable cooling care on the skin.
Its excellent LED light transmittance also allows the formula to be used alongside LED skincare devices, enabling an expanded care experience.

<p style="font-size: 20px;">Over 3x greater active ingredient release</p>
<p style="font-size: 20px;">Stable adhesion and strength in active conditions</p>
<p style="font-size: 20px;">Biodegradable and soluble by design</p>
<p style="font-size: 20px;">Cooling Recovery & LED Compatibility</p>

Use with

Frequently asked questions

What skin condition is it recommended for?

It is suitable for skin that does not feel smoothly refined, or when the skin feels hydrated but the overall condition still feels incomplete. It gently adds the care the skin needs and helps support a hydrated, balanced, and well-conditioned look.
How many uses does one ampoule provide?

One ampoule is intended for single use. When used as a standalone serum, the number of uses may vary depending on the amount used and the area of application, so it can be divided into multiple uses according to your skin condition.
Can I use it as a standalone serum?

Yes. DEFINE Ampoule can be used as a standalone serum. After cleansing and preparing the skin, apply an appropriate amount to the entire face or targeted areas, then gently smooth along the skin texture and pat in. It can also be used as part of a focused home-clinic care routine with a RollerGOLD.
Can sensitive skin use it?

Skin condition varies from person to person. If your skin is sensitive or easily irritated, start with a small amount, and discontinue use if discomfort such as redness or irritation occurs.
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Born from medical science and bioengineering,
designed to care for the skin’s timeline - from preparation to delivery to recovery.
This is SLOAID Skin Architecture

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