WIYUN Arginine Face Serum – Hydrating, Firming & Brightening

Reveal a smoother, more radiant complexion with the WIYUN Arginine Face Serum — a lightweight, fast-absorbing essence formulated with a powerful trio of skin-loving ingredients: arginine, hyaluronic acid, and hydroxyethyl cellulose. Designed for all skin types and genders, this 30ml serum delivers deep, long-lasting hydration while helping to visibly firm, brighten, and renew your skin's appearance with every use.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Made in Mainland China.

Why You'll Love It

• Deep Hydration: Hyaluronic acid draws and locks in moisture, keeping skin plump and supple throughout the day.
• Firming & Smoothing: Arginine — a naturally occurring amino acid — supports the skin's surface texture, helping to visibly minimise the look of fine lines over time.
• Radiant Glow: Regular use helps brighten dull skin for a fresh, luminous appearance.
• Nourishing Formula: Hydroxyethyl cellulose creates a silky, skin-conditioning texture that glides on effortlessly without feeling heavy or greasy.
• Unisex & Versatile: Suitable for all skin types — ideal for daily use morning or evening.
• No High-Concern Chemicals: Formulated without harmful high-concern substances for peace of mind.

Key Ingredients

• Arginine – An amino acid that supports skin barrier function and contributes to a firmer-looking complexion.
• Hyaluronic Acid – A powerhouse humectant that binds moisture to the skin for lasting hydration.
• Hydroxyethyl Cellulose – A natural-derived polymer that conditions and smooths skin texture.

Product Specifications

How to Use

1. Cleanse your face thoroughly and pat dry.
2. Dispense a small amount of serum onto your fingertips and apply evenly to the face and neck.
3. Gently massage in circular motions until fully absorbed.
4. Follow with your favourite moisturiser. Use daily for best results.

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Learn More About Skincare Ingredients

Want to understand how key ingredients like hyaluronic acid and amino acids benefit your skin? The National Institutes of Health (NIH) / PubMed provides peer-reviewed research on skincare actives and their effects on skin health.

Learn more: South Korean beauty standards

Frequently Asked Questions

Q: What does the WIYUN Arginine Face Serum do for my skin?

A: The WIYUN Arginine Face Serum is formulated to deliver deep hydration, support a firmer-looking complexion, and promote a brighter, more radiant glow. Key ingredients arginine (an amino acid), hyaluronic acid, and hydroxyethyl cellulose work together to nourish and condition the skin's surface with regular use.

Q: Who can use this arginine face serum?

A: This serum is designed for unisex use and is suitable for all skin types. Whether you have dry, oily, combination, or normal skin, the lightweight liquid formula absorbs comfortably without leaving a heavy or greasy residue.

Q: How often should I apply the arginine serum?

A: For best results, apply the serum daily — either in the morning before sunscreen or in the evening as part of your nighttime skincare routine. Consistent use over time helps maximise the hydrating and firming benefits.

Q: How much serum is in each bottle?

A: Each bottle contains 30ml of serum, providing plenty of product for your daily routine. The shelf life is 3 years when stored in a cool, shaded place away from direct sunlight.

Q: Can I use this serum under moisturiser or makeup?

A: Yes! As a serum, it is designed to be applied before your moisturiser to allow maximum ingredient absorption. Once absorbed, it creates a smooth base that works well under moisturiser and makeup.