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3% Hyaluronic Acid + Panthenol Serum For Intensive Hydration

Optimally blended with four sizes of hyaluronic acid molecules, this serum delivers comprehensive hydration and moisture balance, seamlessly integrating with your makeup. Suitable for all skin types, it's perfect for daily hydration, medical aesthetics, or post-sun repair.

Sale price HK$235.00 / 30ml




  • Hydration Soothing
  • Relief Moisture
  • Retention

A hydrating and watery serum, providing deep moisture without feeling sticky.

The science behind our HYA3 Serum

Hydration and Moisture Retention with HYA3 Serum The HYA3 formula contains four different types of Hyaluronic Acids – low, medium, large, and cross-linked – with a total concentration of 3%. Hyaluronic Acid of different molecular sizes can penetrate into different layers of skin, hydrating the skin and locking in moisture.

1. Sodium Hyaluronate Crosspolymer is a cross-linked form of hyaluronic acid that creates a protective film that prevents transepidermal water loss and environmental damage, and preserves natural hyaluronic acid in the skin.
2. Large Molecule Hyaluronic Acid forms a film of moisture on the skin's surface, maintaining long-lasting hydration..
3. Medium Molecule Sodium Hyaluronate adheres to the outermost layer of skin, increasing moisture retention and promoting the repair of damaged skin.

Enhanced Absorption with Hydrolysis Most Hyaluronic Acid serums on the market have a molecular size of 20-30 kDA, which prevents it from penetrating the epidermis. Therefore, we use hydrolysis to further decrease its size to reach a deeper layer of skin, enhancing the penetrating ability of Sodium Hyaluronate and thus, the absorption.

Strengthening the Skin Barrier HYA3 enhances the skin's hydration by using panthenol as a key moisturizing ingredient. Panthenol, an uniquely hygroscopic precursor of vitamin B5, attracts and retains water molecules from the surrounding. As the hydroxyl group (OH group) in the panthenol molecule is polar and can, thus, form a protective moisture barrier, preventing transepidermal water loss. Through long-term use, HYA3 improves skin’s health by strengthening the structure of the epidermis and sebum layer.


Q1. What considerations did you take into account during HYA3's formulation?

When formulating HYA3, we conducted extensive testing to find the perfect balance of the four hyaluronic acid molecules of different sizes. This was done to prevent issues like flaking makeup, ensuring that the product not only doesn't interfere with makeup application but also helps create a smoother and seamless finish.


Application: Apply 1/3 to a full dropper after toner and before lotion or cream. Use in the morning and evening.

Initial Usage: Adjust the quantity based on your skin's needs and the weather.


Hydrolyzed Sodium Hyaluronate
  • Provides deep hydration
  • Repairs the skin's underlying cells.
Sodium Hyaluronate (Medium to Large Molecule)
  • Absorbs moisture from the air
  • Locking it in the inner layers
  • Providing external hydration
Sodium Hyaluronate Crosspolymer
  • Maintains skin hyaluronic acid integrity
  • Reducing moisture loss
  • Ensuring long-lasting hydration
  • Addresses the root cause of moisture retention
  • Fortifying the skin's natural moisture barrier

Aqua/Water, Butylene Glycol, Glycerin, Propanediol, Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate, Phenoxyethanol, Allantoin, Hydrolyzed Sodium Hyaluronate, Panthenol, 1,2-Hexanediol, Disodium EDTA, Caprylyl Glycol, Pentane-1,2-diol


Sensitivity Test: Before introducing any new product, we recommend conducting a sensitivity test on a small area of skin on the inner forearm or behind the ear.

HYA3 Sale price HK$235.00 / 30ml