TRSTAY Lactobionic Acid Pore-Refining Brightening Face Serum

Reveal a smoother, more luminous complexion with the TRSTAY Lactobionic Acid Pore-Refining Essence. This lightweight, unisex face serum is formulated with lactobionic acid — a next-generation polyhydroxy acid (PHA) — to gently resurface skin, visibly minimize the appearance of pores, and deliver deep, lasting hydration. Whether your skin looks tired or uneven, this brightening essence works to restore a healthy, radiant glow while helping skin feel firmer and more refined.

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 Action: Lactobionic acid gently buffs away dead surface cells to visibly tighten and minimize pores for a smoother skin texture.
• Brightening Boost: Helps even out skin tone and reduce the appearance of dullness, leaving your complexion looking fresh and radiant.
• Intense Moisturization: Infused with a hydrating oil base that locks in moisture throughout the day, helping skin feel plump and supple.
• Skin-Firming Formula: Promotes a firmer, more lifted appearance with consistent use — great for all skin types.
• Unisex Design: Suitable for all genders and skin types, making it a versatile addition to any skincare routine.
• No High-Concern Chemicals: Formulated without high-concern chemical ingredients for confident, everyday use.

Key Ingredient Spotlight

Lactobionic Acid (PHA) is a gentle yet effective polyhydroxy acid derived from lactose. Unlike harsher acids, it is well-tolerated by sensitive skin and provides simultaneous exfoliation and hydration. It also has antioxidant properties that help protect skin from environmental stressors.

Learn more about skincare ingredient science and healthy skin care practices at the American Academy of Dermatology or review general skin health guidance from the U.S. Food & Drug Administration – Cosmetics.

How to Use

1. Cleanse and tone your face as usual.
2. Apply a few drops of the essence to your fingertips.
3. Gently pat and press onto the face and neck until fully absorbed.
4. Follow with your favourite moisturizer or sunscreen.
5. Use morning and/or evening for best results.

Product Specifications

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

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Frequently Asked Questions

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

A: Lactobionic acid is a polyhydroxy acid (PHA) derived from lactose. It works as a gentle exfoliant to remove dead skin cells, helping to visibly refine pores and brighten skin tone. Unlike stronger acids, it also has humectant properties, meaning it attracts and retains moisture in the skin — making it ideal for even sensitive skin types.

Q: Is the TRSTAY Pore-Refining Essence suitable for all skin types?

A: Yes! This essence is formulated for unisex use and is suitable for all skin types, including combination, oily, dry, and normal skin. Its gentle PHA formula makes it a good choice for those who want effective exfoliation without harsh irritation.

Q: How long does it take to see results from this brightening serum?

A: Most users begin to notice a more even skin tone and smoother texture within 2–4 weeks of consistent daily use. For best results, apply both morning and evening as part of your regular skincare routine and always follow with SPF during daytime use.

Q: Can I use this serum with other skincare products?

A: Absolutely. This essence layers well under moisturizers, SPF, and other serums. If you are introducing any new acid into your routine, we recommend starting slowly — every other day — and monitoring how your skin responds before using it daily.