TXA Niacinamide 15 Serum – intensive tone-unifying serum

💗 TXA Niacinamide 15 Serum – intensive tone-unifying serum with 15% active complex

Targeted serum with 10% niacinamide, 5% tranexamic acid and 2% arbutin for caring for dull, uneven-toned skin and the visible appearance of darker spots. The concentrated tone-care formula is complemented by 10 types of hyaluronic acid, panthenol, betaine, glutathione and peptides for a more hydrated, smoother and radiant skin appearance.

✨ What does it do?

• Contains 10% niacinamide.
• Supports a more even skin tone appearance with 5% tranexamic acid.
• Complements the targeted tone-care system with 2% arbutin.
• The three main actives together focus on caring for dull, blotchy, uneven skin texture.
• Supports a more hydrated skin feel with 10 different forms of hyaluronic acid.
• Contains panthenol and betaine for more comfortable, less tight skin.
• Complements the antioxidant, radiance-supporting formula with glutathione and ferulic acid.
• Also contains vitamin B12.
• Includes 3 different peptides and adenosine.
• Light, fast-absorbing serum texture.
• Suitable for use both morning and evening.

🧬 Key active ingredients

Niacinamide – 10%

The formula contains 100,000 ppm, that is 10% niacinamide.

This higher concentration of vitamin B3 supports a more even, radiant skin appearance, finer skin texture and proper skin barrier function.

It is especially suitable for routines of dull, uneven-toned skin or skin with visible pores.

Tranexamic Acid – 5%

The serum contains 50,000 ppm, that is 5% tranexamic acid.

Tranexamic acid is primarily used in cosmetic skincare to care for pigment irregularities, darker spots remaining after acne and the visible appearance of uneven tone.

This is considered a high concentration even among medicube’s current TXA serums.

Arbutin – 2%

The third important tone-care active in the formula.

2% arbutin works together with niacinamide and tranexamic acid to support a clearer, more even and radiant complexion.

Therefore, although the “15” refers to the sum of niacinamide + TXA, the serum actually builds on a 10% + 5% + 2% triple tone-care system.

10 types of hyaluronic acid

The current formula contains ten different forms of 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

The multi-layered hydrating system helps maintain a softer, plumper and more hydrated skin feel.

Panthenol + betaine

Two hydrating and skin comfort-supporting ingredients that help balance the formula built on higher concentration actives.

Glutathione + ferulic acid

Antioxidant, radiance-supporting ingredients that complement the care of dull, tired-looking skin.

Vitamin B12 – Cyanocobalamin

Vitamin B12 is also included in the formula.

According to medicube, the shade due to the product’s natural pigments and vitamin B12 content may fade over time, but this does not in itself indicate a decrease in product efficacy.

3 peptides

The formula contains:

• Acetyl Tetrapeptide-5
• Hexapeptide-9
• Palmitoyl Tripeptide-5

peptides.

These are complementary elements of the formula that support smoother, more elastic and well-cared-for skin appearance.

Adenosine

A cosmetic active that supports smoother, more elastic skin appearance and the less pronounced overall effect of fine lines.

📊 What did the manufacturer’s tests show?

Based on medicube’s 72-hour finished product test:

• A 2.045% improvement was measured in the indicator of clearer, more radiant skin appearance,
• An 18.1% improvement in the measured hydration value.

These are manufacturer cosmetic test results, so individual results may vary.

🎯 Who is it recommended for?

It can be a particularly good choice for:

• dull skin,
• uneven skin tone,
• caring for the visible appearance of pigmentation spots,
• darker spots remaining after acne,
• uneven skin texture,
• dehydrated skin,
• caring for the visible appearance of enlarged pores,
• if you are looking for a targeted, high active ingredient content tone care serum.

Medicube recommends it for all skin types, including sensitive skin.

🧴 How to use

After cleansing and toner, apply a few drops to the face, then gently spread and pat in.

Follow with a moisturising cream.

Can be used both morning and evening.

Always finish your daytime routine with an appropriate sunscreen – especially if your goal is to care for pigmentation spots and uneven skin tone.

⚠️ What to watch out for?

The 10% niacinamide higher concentration may cause temporary stinging, warmth or redness on very sensitive or reactive skin.

The formula contains no separate Parfum/Fragrance, however Rosa Centifolia Flower Oil, i.e. rose oil, is listed in the INCI. Therefore, it cannot be considered completely essential oil-free.

If your skin is sensitive, you can start by using it once daily, then switch to morning and evening use according to your tolerance.

💗 Why do we love it?

Because this really is a targeted, well-defined tone care formula.

The 10% niacinamide, 5% tranexamic acid and 2% arbutin together say much more about the product than a general “brightening serum” label. The 10 types of hyaluronic acid, panthenol and betaine ensure that hydration is not neglected alongside the concentrated active formula.

It can be a particularly good choice if you want to care simultaneously for dull skin, uneven tone, post-acne discolorations and skin texture.

❓ Q&A

What does the 15 in the product name mean?

It refers to the sum of the two most important active concentrations:

10% niacinamide + 5% tranexamic acid = 15%.

Additionally, the formula contains 2% arbutin.

How much tranexamic acid does it contain?

5%, that is 50,000 ppm.

How much niacinamide does it contain?

10%, that is 100,000 ppm.

How much arbutin does it contain?

Medicube specifies 2% arbutin.

Does it contain alpha-arbutin?

No. The current INCI lists Arbutin, not Alpha-Arbutin. The two should not be used interchangeably.

How many types of hyaluronic acid does it contain?

According to the current INCI, 10 different forms of hyaluronic acid.

Does it contain vitamin B12?

Yes. Cyanocobalamin is listed in the ingredients.

Why can the serum colour change?

According to Medicube, natural pigments and vitamin B12 may lose intensity over time when exposed to light. This does not affect the product’s usability.

What is the white powder around the dispenser?

Medicube states that due to the high niacinamide concentration, a thin whitish crystalline layer may form around the glass or dispenser from the product exposed to air.

This does not mean the serum has gone bad.

Does it contain peptides?

Yes, three types: Acetyl Tetrapeptide-5, Hexapeptide-9 and Palmitoyl Tripeptide-5.

Can it be used daily?

Yes. Medicube developed it for daily use, suitable for morning and evening application.

However, on more sensitive skin, it may be more comfortable to start with once daily use due to the 10% niacinamide.

Is sunscreen necessary?

Yes. If you are caring for pigmentation spots and uneven skin tone, consistent daytime sun protection is an essential part of the routine.

Can it be used with vitamin C or retinoids?

Yes, there is no general rule requiring these to be used in separate routines.

However, if multiple high concentration actives irritate your skin, it is advisable to use them at different times of day or in alternating routines.