TRSTAY Vitamin B5 & Hyaluronic Acid Hydrating Serum

TRSTAY Vitamin B5 + Hyaluronic Acid Hydrating Serum

Reveal a more luminous, deeply hydrated complexion with the TRSTAY Vitamin B5 Hydrating Serum. Infused with the powerhouse duo of Panthenol (Vitamin B5) and Hyaluronic Acid, this lightweight serum is designed for all skin types and genders — delivering an intense surge of moisture while visibly improving the look of dull, uneven skin tone.

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.

Why You'll Love This Serum

• Vitamin B5 (Panthenol): A skin-loving humectant that draws moisture into the skin and helps lock it in, leaving your complexion feeling soft, smooth, and supple throughout the day.
• Hyaluronic Acid: Attracts and retains up to 1,000× its weight in water, providing multi-layer hydration for a plump, dewy, youthful-looking glow.
• Brightening Formula: Targets a dull, tired-looking complexion and works to restore radiance and a healthy-looking luminosity to the skin.
• Lightweight & Fast-Absorbing: The silky, non-greasy texture absorbs quickly without clogging pores, making it ideal under moisturizer or makeup.
• Unisex & Whole-Face Use: Suitable for all genders and formulated for use across the entire face.
• One Unit: Full-size bottle for everyday use.

How to Use

1. Cleanse and gently pat your face dry.
2. Apply 3–4 drops of serum to your fingertips.
3. Gently press and massage the serum into your face and neck in upward motions.
4. Follow with your favourite moisturizer or SPF for best results.
5. Use morning and evening for optimal hydration.

Key Ingredients

• Panthenol (Vitamin B5) — deep hydration & skin barrier support
• Hyaluronic Acid — intense moisture retention & plumping effect

Suitable For

• All skin types — including normal, dry, oily, combination, and sensitive skin
• All genders
• Daily AM and PM skincare routines

Made in Mainland China.

Pair It With

For a complete skincare routine, explore these related products from our store:

• 0.3ml & 0.5ml Ampoule Head Cap Adapter for Hyaluron Pen
• 0.3ml & 0.5ml Hyaluron Pen Ampoule Head Cartridge | Skin Care

Learn More About Skin Hydration

For authoritative guidance on skincare ingredients and skin health, visit the National Institutes of Health (NIH) — Hyaluronic Acid in Skincare Research.

Learn more: K-beauty

Frequently Asked Questions

Q: What does Vitamin B5 (Panthenol) do for the skin in this serum?

A: Vitamin B5, also known as Panthenol, acts as a powerful humectant that draws moisture into the skin and helps maintain the skin's natural barrier. In the TRSTAY Vitamin B5 Serum, it works to keep skin feeling soft, smooth, and well-hydrated, while also contributing to a more even and radiant-looking complexion.

Q: Can I use this Vitamin B5 & Hyaluronic Acid serum with other skincare products?

A: Yes! This lightweight, fast-absorbing serum is designed to layer seamlessly within your existing skincare routine. Apply it after cleansing and before your moisturizer or SPF. It pairs well with toners, essences, and eye creams, making it a versatile addition to any AM or PM regimen.

Q: Is the TRSTAY Hydrating Serum suitable for sensitive skin?

A: The serum is formulated for unisex, whole-face use and is generally suitable for all skin types, including sensitive skin. As with any new skincare product, we recommend performing a patch test on a small area of skin before full application, especially if you have particularly reactive or sensitive skin.

Q: How long before I see visible improvements in skin brightness and hydration?

A: Individual results vary, but many users notice improved hydration and a more luminous appearance within 2–4 weeks of consistent daily use. For best results, use morning and evening as part of your complete skincare routine.