TRSTAY Lactobionic Acid Pore-Refining Brightening Face Serum

Meet your new everyday glow-getter. The TRSTAY Lactobionic Acid Pore-Refining Essence is a lightweight, oil-formulation face serum crafted to visibly brighten skin tone, intensely hydrate, minimise the look of enlarged pores, and leave your complexion looking firmer and more radiant 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.

Why You'll Love It

• Pore-Refining Formula: Lactobionic acid (a gentle polyhydroxy acid) works at the surface to smooth texture and minimise the appearance of pores for a refined, even finish.
• Brightening Boost: Targets dullness and uneven skin tone, revealing a luminous, healthy-looking complexion.
• Deep Moisturisation: Rich humectant properties help draw moisture into the skin, keeping it soft, supple, and plumped throughout the day.
• Firming Effect: Helps skin look visibly tighter and more lifted with consistent use.
• Unisex — Suitable for All: Designed for all skin types and genders, so everyone can enjoy a refined glow.
• No High-Concern Chemicals: Formulated without flagged or high-concern ingredients — a thoughtful choice for conscious skincare lovers.

Key Ingredient Spotlight

• Lactobionic Acid (Bionic Acid): A next-generation polyhydroxy acid (PHA) that gently exfoliates, hydrates, and supports a smoother skin surface — ideal for sensitive or reactive skin types.

How to Use

1. Cleanse and tone your face as usual.
2. Apply a small amount of the essence to your fingertips.
3. Gently press and pat into your face and neck, focusing on areas of concern.
4. Follow with your favourite moisturiser or sunscreen.
5. Use morning and/or evening for best results.

Product Specifications

• Brand: TRSTAY
• Item Type: Face Serum / Essence
• Formulation: Oil
• Gender: Unisex
• Number of Pieces: 1 Unit
• High-Concern Chemicals: None
• Made in: Mainland China

Pair It With

Complete your skincare routine with these complementary products:

• 10 Dual-End Temporary Tattoo Markers – Body & Face Paint Pens

For more information on skincare ingredients and healthy skin habits, visit the FDA Cosmetic Ingredients resource and learn about skin health from trusted dermatology guidelines.

For general guidance on skincare and cosmetic safety, the FDA Cosmetics page is an excellent resource.

Frequently Asked Questions

Q: What is lactobionic acid and how does it benefit my skin?

A: Lactobionic acid is a polyhydroxy acid (PHA) — a gentler cousin of AHAs like glycolic acid. It works on the skin's surface to encourage cell renewal, smooth texture, reduce the appearance of pores, and deliver excellent hydration, making it suitable even for sensitive skin types.

Q: Is the TRSTAY Lactobionic Acid Essence suitable for sensitive skin?

A: Yes! PHAs like lactobionic acid are known for their gentle, well-tolerated nature, making this essence a great option for those who find stronger exfoliating acids too harsh. However, as with any new skincare product, we recommend a patch test before full application.

Q: Can I use this face serum both morning and night?

A: Absolutely. The essence is suitable for both AM and PM routines. If using in the morning, always follow up with a broad-spectrum SPF to protect your freshly brightened skin.

Q: How long before I see results from using this pore-refining essence?

A: Most users begin to notice improvements in skin texture, hydration, and radiance within 2–4 weeks of consistent daily use. Pore appearance and overall tone tend to improve progressively over time.