Medicube TXA Niacinamide 15% Glow Serum – Fragrance-Free Brightening Safe for Sensitive, Reactive Skin
Medicube TXA Niacinamide 15% Glow Serum – Fragrance-Free Brightening Safe for Sensitive, Reactive Skin
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Why you'll love it
- Clinically proven 15.6% radiance boost after one use and 7.5% texture improvement after one week gives measurable confidence
- Brand's highest 5% TXA concentration signals potency without requiring a prescription
- Multi-ingredient 'all-in-one' formula combines brightening (TXA, Niacinamide, Arbutin), hydrating (10-layer HA, Panthenol, Betaine), and soothing (Vitamin B12, Coral Moss) in a single dropper
- Fragrance-free, low-irritation profile reassures sensitive and reactive skin types who avoid harsh brighteners
- K-beauty credibility and dropper format feel both aspirational and practical at an accessible price tier
- Suitable for all skin tones and types, eliminating guesswork for gift and shared-household use
Perfect for
- Daily morning and evening brightening serum step after cleansing and toning
- Targeted after-spot care to fade post-acne hyperpigmentation and sun spots
- Texture-refining treatment for rough or bumpy skin over a multi-week routine
- Layered hydration boost under moisturizer in a multi-step K-beauty routine
- Travel-friendly brightening step to maintain glow on trips





Product Information
All-in-One Glow Serum - Uneven skin tone, hydration, and skin texture care with 10-layer hyaluronic acid, Panthenol, and Betaine.
Gentle Vitamin B12 Formula for Daily Use – Lightweight, low-irritation, and fragrance-free formula. Contains Panthenol and Coral Moss Extract to calm and soothe skin. Suitable for daily use.
5% Tranexamic Acid (TXA) – Maximum Strength for After Spot Care – *medicube's highest TXA concentration for after spot care and enhancing your skincare routine. *The above information pertains only to the characters of the raw materials *Maximum application rate of tranexamic acid according to company skincare standards.
Exclusive medicube Ingredient Blend – Powered by a unique combination of 5% Tranexamic, 10% Niacinamide, and 2% Arbutin, this serum deeply hydrates, refines skin texture, and leave your skin visibly healthier.
Clinically Proven Results of TXA + Niacinamide 15% Serum: Boosts radiance by 15.6% after just one use and improves skin texture by 7.5% after one week of use. Achieve smooth, glass glow skin with a mild formula. *Clinical Trial Tested by the 'Custis Life Science Research Center.' / Results may vary depending on individual skin types.
Items Details
Number of Items: 1
Features & Specs
Skin Type: All
Product Benefits: Hydrating
Target Use Body Part: Face
Special Ingredients: Niacinamide, Tranexamic Acid (TXA), Vitamin B12
Item Form: Drop
Skin Tone: All
Frequently Asked Questions
Is this serum safe for sensitive or reactive skin types?
Yes. It is fragrance-free, low-irritation, and includes Vitamin B12 and Coral Moss Extract specifically for soothing comfort. Many users with reactive skin tolerate it well, though a patch test along the jawline for two to three nights is always wise.
Can I use this serum if I have a compromised skin barrier?
Caution is advised. While the soothing ingredients help, the 5% TXA and 10% Niacinamide are still active. If your barrier is currently compromised, prioritize barrier-repair products for a week or two before introducing this serum, then start at every other night.
Is it safe to use this serum every day long-term?
Yes, the formula is designed for daily morning and evening use. The included hydrators and soothing agents help maintain comfort over time, which is important because harsh brighteners are often the reason people cycle off a product.
Can I layer this serum with retinol, vitamin C, or exfoliating acids?
Yes, with thoughtful timing. Many users alternate this serum in the morning and use retinol or exfoliating acids in the evening. If you want to combine actives in the same routine, introduce them slowly and watch for irritation.
Is it safe to use around the eye area?
It is safe to use on the orbital bone and outer eye area, but avoid direct contact with the eyes and the immediate lash line. The skin around the eyes is thinner and more reactive, so keep application a safe distance away.
Is this serum safe during pregnancy or while breastfeeding?
Tranexamic Acid and Niacinamide are generally considered well-tolerated, but pregnancy and breastfeeding skincare decisions are personal. Please review the full ingredient list with your OB-GYN or dermatologist before adding it to your routine.
Will this serum cause purging or breakouts?
It does not contain exfoliating acids that typically cause purging, so new breakouts are more likely an individual reaction than a true purge. If you experience new congestion, pause use and consult a dermatologist.
How does this compare to prescription-strength brightening creams in terms of safety?
Prescription brighteners like hydroquinone carry risks such as ochronosis and rebound pigmentation with long-term use. This serum uses 5% TXA, 10% Niacinamide, and 2% Arbutin, a non-prescription triple-brightening combination with a much milder side-effect profile.
How does it compare to harsh brightening serums with high alcohol or fragrance content?
Many strong brighteners rely on alcohol, fragrance, or essential oils to enhance penetration, which can irritate sensitive skin. This serum is fragrance-free, low-irritation, and built around humectants and soothing agents, so it is generally a safer daily-use choice.
Is the dropper bottle safe to keep in a bathroom with kids or pets around?
Yes, the glass bottle and small dropper are standard for skincare and pose no unusual risk. As with any skincare product, store it on a stable shelf out of reach of young children and curious pets to prevent spills or breakage.
Will the active ingredients cause sun sensitivity even though the formula is mild?
Any brightening active that affects pigmentation can make skin slightly more photosensitive. Use a broad-spectrum SPF 30 or higher every morning, which is a non-negotiable part of any brightening routine and protects your results long-term.
Can I use this serum on broken skin, cuts, or active cystic acne?
No. Apply only to intact, healthy skin. Active breakouts, open lesions, or freshly picked blemishes can sting and may increase the risk of irritation. Wait until the skin has closed before resuming use in that area.
How do I know if I am having a real allergic reaction versus mild adjustment?
Mild adjustment can include temporary tingling or slight redness that fades within 20 to 30 minutes. True allergic reactions usually involve persistent burning, swelling, hives, or itching that does not resolve. Stop use immediately and consult a professional if symptoms persist.
How do I use this serum in my daily routine?
After cleansing and toning, apply two to three drops to clean, dry skin and gently press in. Follow with your favorite moisturizer. In the morning, always finish with a broad-spectrum SPF 30 or higher to protect your brightening results.
How long until I see visible results?
The brand's clinical measurements show a 15.6% radiance boost after one use and 7.5% texture improvement after one week of consistent use. For after-spot care and post-acne hyperpigmentation, most users see meaningful fading within four to eight weeks.
Can I use this serum in the morning and at night?
Yes, it is designed for twice-daily use. Apply it in the morning before SPF and in the evening before moisturizer. If you are new to brightening actives, start with once a day in the evening for the first week and increase as tolerated.
Is this serum compatible with retinol and exfoliating acids?
Yes, but alternate rather than stack. A common approach is this serum in the morning and retinol or exfoliating acids in the evening. If you prefer same-routine layering, wait five to ten minutes between applications and watch for irritation.
Does this serum work with mineral sunscreen, chemical sunscreen, or both?
It works with both. Apply the serum, let it absorb fully, then layer your preferred broad-spectrum SPF 30 or higher on top. Both mineral and chemical formulas are compatible with this serum's active and hydrating ingredients.
What is included in the box when I order?
You receive one 1.01 fl.oz (30 ml) glass dropper bottle of the TXA Niacinamide 15% Glow Facial Serum, individually sealed for hygiene. The dropper is pre-installed and ready to use straight out of the box.
Is this serum safe for sensitive skin and for all skin tones?
Yes. It is fragrance-free, low-irritation, and formulated to suit all skin types, including sensitive skin, and is appropriate for all skin tones. As with any active serum, a small patch test along the jawline for two to three nights is a smart first step.
Does this serum test on animals or contain harsh ingredients?
It is a K-beauty formulation focused on a fragrance-free, low-irritation profile. For the most accurate, up-to-date cruelty-free, vegan, and ingredient certifications, please refer to the brand's official product page and packaging, as certifications can vary by region.
What is the difference between a serum, an essence, and an ampoule?
An essence is typically a lightweight hydrating layer used right after toning. An ampoule is a concentrated, short-term treatment course. A serum is a daily-use treatment with targeted active ingredients at effective concentrations. This product is a serum, designed for consistent daily use rather than a short ampoule course.

