Medicube TXA Niacinamide 15 Serum (30ml) — Korean High-Potency Brightening Serum with 5% Tranexamic Acid (50,000ppm) + 10% Niacinamide (100,000ppm) + 2% Arbutin | 72-Hour Glow | 10-Layer Hyaluronic Acid | Fades Dark Spots & Acne Scars | Sensitive Skin | Made in Korea
15%. Three Actives. Real Results in 72 Hours.
Medicube is dedicated to real results. That commitment is on the packaging — and in the data behind the TXA Niacinamide 15 Serum, available at thealoy.com. Clinically proven to boost radiance by 15.6% after just one use and improve skin texture by 7.5% after one week of use — these are not speculative claims but figures from a clinical trial tested by the Custis Life Science Research Center.
The "15" in the name refers to the combined 15% total brightening complex: 5% Tranexamic Acid, 10% Niacinamide, and 2% Arbutin — three of the most clinically proven brightening actives, each targeting dark spots and uneven tone through a different biological pathway, at concentrations meaningful enough to produce the documented results.
5% TXA is Medicube's highest TXA concentration for dark spot and acne scar care. The formula is all-in-one: uneven skin tone, hydration, and skin texture care with 10-layer hyaluronic acid, Panthenol, and Betaine — delivering 72 hours of glow from a single application.
Skin Type Suitability
- All skin types, including sensitive skin — low irritation tested and free from artificial fragrance
- Skin with dark spots, post-acne marks, and hyperpigmentation — the primary target; the triple-active brightening complex attacks pigmentation from three simultaneous pathways
- Oily and combination skin — lightweight, watery, non-sticky texture absorbs instantly for a clear and fresh finish
- Dehydrated skin — 10-layer hyaluronic acid complex and Panthenol deeply hydrate and smooth the skin barrier
- Dull and uneven-toned skin — clinically proven 15.6% radiance boost after just one use
Who Is This Product For?
- Those dealing with persistent dark spots, melasma, post-acne marks, or uneven skin tone who want maximum-strength, multi-active brightening in a single serum
- Anyone who has been using lower-concentration brightening actives without satisfying results and wants to step up to clinically verified 5% TXA + 10% Niacinamide doses
- Those who want clinically proven brightening results quickly — the documented 15.6% radiance improvement after a single use and 7.5% texture improvement in one week make this one of the fastest-acting brightening serums available
- Those in Bangladesh searching for the best Tranexamic Acid serum in Bangladesh or the original Medicube TXA Niacinamide 15 Serum — now at thealoy.com with verified authenticity
Who Should Avoid This Product?
- Those new to high-concentration Niacinamide — at 10% (100,000ppm), this is a high-strength dose that most skin tolerates well but some may find causes mild initial flushing; introduce gradually and patch test first
- Those with fragrance sensitivity — the formula has no artificial fragrance but contains Rosa Centifolia Flower Oil, which has a subtle natural rose scent that disappears on absorption. Fragrance-sensitive shoppers should patch test
- Those who skip SPF — always follow with SPF in the morning when using active brightening ingredients; UV exposure directly counteracts TXA and Niacinamide's brightening effects
- Pregnant women — contains Tranexamic Acid and Niacinamide at high concentrations; consult your dermatologist before use during pregnancy
Skin Concerns It Helps With
- Dark spots and post-acne marks — 5% TXA targets uneven tone and discoloration; TXA helps maintain overall skin balance by blocking the signals that trigger excess melanin production
- Melasma and deep hyperpigmentation — Tranexamic Acid is one of the most effective clinical ingredients for melanin-related discolouration, including hormonally-triggered melasma
- Dullness and lack of radiance — clinically proven 15.6% boost in radiance after just one use
- Uneven skin texture — clinically proven 7.5% improvement in skin texture after one week; 10% Niacinamide enhances complexion and skin texture
- Dehydration and rough skin barrier — 10-layer hyaluronic acid hydrates and smooths the skin barrier alongside Panthenol and Betaine
- Acne scars — Medicube's highest TXA concentration specifically positioned for dark spot and acne scar care
What Results Can You Realistically Expect?
After just one use: Clinically proven 15.6% boost in radiance. The lightweight, watery consistency spreads easily and absorbs quickly, and the first-use glow effect is one of the most consistently noted qualities by verified users.
Within one week: Clinically proven 7.5% improvement in skin texture. Users report visibly smoother skin and reduced appearance of dark spots within the first week.
Within 72 hours of each application: 72 hours of continuous brightening benefits — meaning the glow is not simply a post-application wash-off effect but a sustained improvement documented across the application window.
Clinical Trial Tested by the Custis Life Science Research Center. Results may vary depending on individual skin types.
How to Use
- After cleansing and toning, apply a generous amount to the face and any targeted dark spot areas
- Gently pat the serum into the skin until fully absorbed
- Follow with moisturiser — if concerns regarding dryness, finish with Medicube Capsule Cream
- Morning: Always follow with sunscreen
- Use morning and evening for best results
Pro Tip: Pair with the Medicube Booster Pro device for better absorption of the formula's active ingredients.
Ingredient Breakdown
Full Official Ingredient List (with confirmed ppm):
Water, Niacinamide (100,000ppm), Glycerin, Butylene Glycol, Tranexamic Acid (50,000ppm), Arbutin, Diethoxyethyl Succinate, Chlorphenesin, C12-14 Alketh-12, Ethylhexylglycerin, Xanthan Gum, Carbomer, Adenosine, Disodium EDTA, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, 1,2-Hexanediol, Panthenol, Cyanocobalamin, Betaine, Coccinia Indica Fruit Extract, Rosa Centifolia Flower Oil, Ferulic Acid, Corallina Officinalis Extract, Pentylene Glycol, Glutathione, Hydrolyzed Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Dimethylsilanol Hyaluronate, Hyaluronic Acid, Potassium Hyaluronate, Sodium Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate Dimethylsilanol, Sodium Acetylated Hyaluronate, Acetyl Tetrapeptide-5, Hexapeptide-9, Palmitoyl Tripeptide-5
Tranexamic Acid / TXA (5% / 50,000ppm)
Medicube's highest TXA concentration for dark spot and acne scar care. TXA is one of the most effective brightening actives for post-acne marks, melasma, and uneven skin tone, working by blocking the signals that trigger excess melanin production rather than simply bleaching the skin surface. TXA helps maintain overall skin balance, including caring for uneven skin tone.
Niacinamide (10% / 100,000ppm)
Niacinamide enhances complexion and skin texture — inhibiting melanosome transfer, strengthening the skin barrier through ceramide synthesis, regulating sebum, and reducing pore appearance. At 10%, this is the high-efficacy concentration documented in clinical research for meaningful skin tone improvement.
Arbutin (2%)
Arbutin complements other actives to minimise the look of uneven patches and enhance skin clarity, working through tyrosinase inhibition to provide a third, complementary pathway of melanin suppression alongside TXA and Niacinamide.
10-Layer Hyaluronic Acid (Hydrolyzed Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Dimethylsilanol Hyaluronate, Hyaluronic Acid, Potassium Hyaluronate, Sodium Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate Dimethylsilanol, Sodium Acetylated Hyaluronate)
Ten distinct molecular weights and forms of Hyaluronic Acid delivering hydration at every skin depth, from the surface down to the mid-dermis, supporting both the formula's moisture claims and the barrier-smoothing effect alongside Panthenol.
Glutathione
An antioxidant tripeptide that provides additional brightening support, complementing TXA and Niacinamide through its antioxidant and melanin-type-switching properties.
Ferulic Acid
A plant-based antioxidant that neutralises free radicals and is specifically documented to enhance the stability and efficacy of other brightening actives in the formula.
Cyanocobalamin (Vitamin B12)
A member of the formula's vitamin complex, contributing to skin cell regeneration, barrier support, and the formula's overall skin-revitalising effect.
3-Peptide Complex (Acetyl Tetrapeptide-5, Hexapeptide-9, Palmitoyl Tripeptide-5)
A supporting peptide trio that contributes to skin firmness and texture refinement alongside the formula's primary brightening function.
Panthenol (Vitamin B5) & Betaine
The formula's primary hydrating and barrier-support duo, working alongside the 10-layer Hyaluronic Acid complex to maintain moisture, smooth skin texture, and ensure the formula remains comfortable on sensitive skin.
About Medicube
Medicube is a South Korean cosmeceutical brand dedicated to real results — a philosophy printed directly on the packaging of this serum. The brand's TXA Niacinamide 15 Serum has rapidly become one of its most globally recognised brightening products, consistently cited alongside the Medicube Deep Vita C Capsule Cream as a core product in the brand's brightening line.
Medicube's products are developed through dermatological research and clinical testing, formulated free of parabens, sulfates, and artificial fragrances, and backed by clinical trial data from recognised research institutions.
You can shop authentic Medicube products in Bangladesh at thealoy.com.
A Note on Authenticity
At thealoy.com, we source all products from trusted and verified channels to guarantee authenticity and quality. Every Medicube product on our website is 100% genuine — manufactured in South Korea. When you search for original Medicube TXA serum in Bangladesh, best Tranexamic Acid Niacinamide serum Bangladesh, or authentic Korean skincare shop Bangladesh, thealoy.com is your verified destination.
Frequently Asked Questions
What does the "15" in "TXA Niacinamide 15 Serum" stand for?
It refers to the combined 15% total brightening complex: 5% Tranexamic Acid (TXA) + 10% Niacinamide = 15% core brightening actives, with 2% Arbutin adding additional efficacy alongside them.
Is 5% TXA a high concentration?
Yes — 5% is Medicube's highest TXA concentration for dark spot and acne scar care, and is noted as the maximum application rate of tranexamic acid according to Medicube's own skincare standards. Effective topical TXA formulas typically range from 2% to 5%.
Does this serum have a scent?
The formula is free from artificial fragrances. It does contain Rosa Centifolia Flower Oil (rose oil), which gives a subtle natural rose scent that disappears on absorption. Fragrance-sensitive shoppers should patch test before full use.
How quickly will I see results?
Clinical trials show a 15.6% boost in radiance after just one use, and a 7.5% improvement in skin texture after one week of consistent use — among the fastest documented results for a Korean brightening serum.
Is the original Medicube TXA Niacinamide 15 Serum available in Bangladesh?
Yes. Purchase the 100% authentic Medicube TXA Niacinamide 15 Serum (30ml) directly at thealoy.com — Bangladesh's trusted Korean skincare destination with fast nationwide delivery.
Can I use this serum twice a day?
Yes — use morning and evening. Always follow with sunscreen in the morning, as TXA and Niacinamide increase the importance of daily UV protection for maximum brightening results.
How long does 30ml last?
With twice-daily use of a generous amount, 30ml typically lasts 6 to 8 weeks. A little goes a long way — the watery consistency spreads easily.
For external use only. Discontinue use if irritation occurs. Keep out of reach of children. Always follow with SPF in the morning. Read instructions and caution before use.
