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Medicube’s TXA Niacinamide 15 Serum is a lightweight pink serum. The 15 on the label is the combined share of tranexamic acid (5%) and niacinamide (10%), with arbutin adding a further 2%. Medicube says 5% is the highest TXA level it uses.

Key ingredients

• Tranexamic acid (TXA), 5%: for uneven tone.
• Niacinamide, 10%: vitamin B3, which Medicube includes for complexion and texture.
• Arbutin, 2%: for the look of uneven patches.
• Hyaluronic acid and betaine: for hydration. The formula uses ten forms of hyaluronic acid.
• Panthenol and coral moss extract: Medicube adds these to calm the skin.
• Vitamin B12: gives the serum its pink colour, along with natural pigments.

How to use

• After cleansing, apply a few drops to the area you want to focus on, then spread wider if needed.
• Pat in lightly until absorbed.
• If your skin feels dry afterwards, follow with a cream.

Good to know

• 30ml dropper bottle.
• Medicube says it has no artificial fragrance. The ingredient list includes rose flower oil.
• The pink colour can fade with exposure to light. Medicube says this does not change how the serum works.
• Niacinamide can dry into a fine white powder around the neck of the bottle once exposed to air.
• Store somewhere cool and dry, out of direct sun. Close the dropper tightly and use within 12 months of opening.
• Patch-test before first use and stop if irritation occurs.