TRSTAY 28-Day Brightening Face Serum – Even Skin Tone & Glow

Reveal a brighter, smoother complexion in just 28 days with TRSTAY's Brightening Face Serum. This lightweight oil-formulation serum works to visibly even skin tone, diminish the appearance of dark spots and discoloration, and restore a healthy, luminous glow — all in one simple daily step.

Disclaimer: This product has 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

• 28-Day Visible Transformation: A consistent routine delivers noticeably brighter, more even-toned skin within a month of use.
• Targets Dark Spots & Discoloration: Formulated to reduce the appearance of uneven patches, post-blemish marks, and dullness for a cleaner-looking complexion.
• Deep Moisturizing: The oil-based formula delivers intense hydration, helping skin feel soft, supple, and plump throughout the day.
• Restores Skin Vitality: Helps revive a tired, lackluster look, leaving skin with a fresh, youthful radiance.
• Unisex Formula: Suitable for all skin types and genders — a universal skincare upgrade for everyone.
• Multiple Sizes Available: Choose from 5ml, 15ml, 30ml, or 50ml to suit your routine and lifestyle — from on-the-go touch-ups to full at-home treatment.

How to Use

1. Cleanse and gently pat your face dry.
2. Dispense a small amount of serum onto your fingertips.
3. Apply evenly across the face and neck, focusing on areas of concern.
4. Gently massage in upward circular motions until fully absorbed.
5. Follow with your favourite moisturizer. Use consistently morning and/or evening for best results.

Product Details

• Brand: TRSTAY
• Item Type: Face Serum
• Formulation: Oil
• Key Benefit: Moisturizing, Brightening, Tone-Evening
• Gender: Unisex
• Sizes: 5ml / 15ml / 30ml / 50ml
• Made in: Mainland China

Pair It With

Complete your skincare routine with these complementary products:

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

Learn More About Skin Health

For guidance on understanding skin tone, hyperpigmentation, and evidence-based skincare ingredients, visit the National Institutes of Health: Skin Pigmentation & Care Research.

Learn more: Face washing

Frequently Asked Questions

Q: How soon will I see results from the TRSTAY Brightening Face Serum?

A: The serum is designed as a 28-day treatment. Many users notice improvements in skin brightness and texture within 2–4 weeks of consistent daily use. Results may vary depending on skin type and how regularly the product is applied.

Q: Is this face serum suitable for sensitive skin?

A: The TRSTAY face serum features a unisex, general-use formula. If you have sensitive skin, we recommend performing a patch test on a small area of skin before full application, and discontinuing use if any irritation occurs.

Q: Which size should I choose?

A: The 5ml size is perfect for travel or trying the serum for the first time. The 15ml or 30ml sizes suit a regular daily routine, while the 50ml is ideal for extended use or sharing. All sizes contain the same brightening formula.

Q: Can I use this serum under makeup?

A: Yes! Apply the serum first, allow it to fully absorb into the skin, and then follow with your moisturizer and makeup as usual. The oil-based formula layers well under most skincare and cosmetic products.