OOTD Triple Hyaluron Acid Serum Glowing Mask (10) is a 10-sheet set of sheet masks designed to deliver "deep, multi-layered hydration" and "natural radiance" through its triple hyaluron acid-rich serum, targeting dryness and dullness. Its core features are:

1. Triple Hyaluron Acid Complex: Contains three molecular weights of hyaluron acid (high, medium, low) — high-molecular hyaluron acid forms a protective film on the skin surface to lock in moisture; medium-molecular penetrates the upper stratum corneum for long-lasting hydration; low-molecular reaches deeper skin layers to replenish internal moisture, solving dryness at the source.
2. Serum-Rich, Skin-Fitting Sheet: The ultra-thin, breathable microfiber sheet conforms tightly to facial contours (covering the T-zone, cheeks, jawline, and even the nose wing) — each mask holds 25-30ml of concentrated serum, ensuring every area of the face receives sufficient nutrients without slipping.
3. Hydration & Radiance in One: In addition to triple hyaluron acid, the serum includes niacinamide (vitamin B3) and glycerin — niacinamide brightens dull skin and evens tone, while glycerin enhances moisture retention, creating a "plump + glowing" effect after use.
4. 10-Sheet Value Set: The 10-sheet packaging balances cost-effectiveness and flexibility — it supports regular weekly use (3-4 times) for 2-3 weeks to maintain skin hydration, or intensive use (daily for 3-5 days) for pre-event skin rescue (e.g., weddings, parties).
5. Gentle & Safe Formula: Free of alcohol, artificial colorants, parabens, mineral oil, and sulfates (SLS/SLES) — tested for skin irritation, suitable for frequent use without damaging the skin barrier (even for first-time mask users).

• All skin types

• Made in :Korea

（specific ingredients are subject to product packaging; core components listed below）：
Key Hydrating Ingredients (Triple Hyaluron Acid):
High-Molecular-Weight Hyaluron Acid (≥1,000 kDa): Forms a transparent protective film on the skin surface, preventing moisture evaporation and shielding against external irritants (e.g., dust, dry air).
Medium-Molecular-Weight Hyaluron Acid (100-1,000 kDa): Penetrates the upper stratum corneum, replenishing moisture in the skin’s outer layers and relieving tightness and dry lines.
Low-Molecular-Weight Hyaluron Acid (≤100 kDa): Reaches the deeper dermis layer, stimulating collagen production and providing long-term hydration from within, improving skin elasticity.
Brightening & Moisturizing Auxiliaries:
Niacinamide (Vitamin B3, 2%-5% concentration): Inhibits melanin transfer to skin cells, brightens dull skin, evens tone, and strengthens the skin barrier to enhance moisture retention.
Vegetable Glycerin: A natural humectant that attracts moisture from the air to the skin, maintaining long-lasting hydration and preventing dryness after mask use.
Panthenol (Vitamin B5): Converts to pantothenic acid in the skin, soothes mild irritation, repairs the skin barrier, and boosts moisture retention (ideal for sensitive skin).
Mask Sheet Material:
Ultra-Thin Microfiber: Soft, breathable, and highly absorbent — the material is lightweight (reducing facial pressure) and conforms to facial curves, ensuring efficient serum delivery without friction.
Preservatives & Stabilizers:
Phenoxyethanol (≤1%): A mild, EU-approved preservative that inhibits bacterial growth in the serum, extending the product’s shelf life (24 months unopened) without skin irritation.
Disodium EDTA: A chelating agent that binds to metal ions in the formula, preventing ingredient oxidation and maintaining the stability of hyaluron acid and niacinamide.
Harsh Substance-Free: Free of alcohol, artificial fragrances, parabens, mineral oil, sulfates (SLS/SLES), and synthetic colorants — meets global "clean skincare" standards, safe for daily use and mild sensitive skin.

Prepare the Skin: Clean your face with a mild cleanser and pat dry. Apply a toner (optional) to balance skin pH and open up pores for better serum absorption (avoid using heavy serums or moisturizers before masking).
Apply the Mask: Tear open the individual sachet, unfold the mask, and align it with your eyes, nose, and mouth. Gently press the mask to remove air bubbles, ensuring full contact with the skin (pay extra attention to the hairline, jawline, and nose wing to avoid gaps).
Relax & Absorb: Leave the mask on for 10-15 minutes (do not exceed 20 minutes, as the mask may dry out and reverse moisture absorption). During this time, avoid facial movements (e.g., talking, laughing) to keep the mask in place.
Massage & Lock in Nutrients: Remove the mask and gently massage the remaining serum into your face and neck with your fingertips until fully absorbed (no need to rinse — the serum continues to nourish the skin).
Follow-Up Care & Frequency: For optimal results, apply a lightweight moisturizer or facial oil after absorption to lock in the hydration and extend the glowing effect. Use 3-4 times a week for regular maintenance, or daily for 3-5 days for intensive care.