
The Ordinary Niacinamide 10% + Zinc 1% Serum 60ml60ml
The Ordinary

Medicube Txa Niacinamide 15 Serum 30ml is a Korean brightening serum formulated with Niacinamide and Tranexamic Acid, designed to help target the look of skin discoloration and support a more balanced skin tone.
Ingredient note: "Txa" is confirmed to mean Tranexamic Acid. The "15" in the product name is verified by the ingredient panel: Niacinamide is present at 100,000ppm (10%) and Tranexamic Acid at 50,000ppm (5%), which together total 15% -- directly explaining the product name.
Apply a few drops to clean face and neck, spreading outward until absorbed. The brand recommends pairing with sunscreen during the day.
Store in a cool, dry place away from direct sunlight. For external use only. A patch test is recommended before first use. Avoid contact with eyes; rinse with water if contact occurs. Discontinue use and consult a doctor if irritation develops. Keep out of reach of children.
Q: What does 'Txa' stand for in the Medicube Txa Niacinamide serum?
A: It stands for tranexamic acid, one of the two main brightening actives in the formula alongside niacinamide.
Q: Should I patch test the Medicube Txa Niacinamide serum before regular use?
A: Yes, the brand recommends a patch test before first use, especially for sensitive skin, given the high combined concentration of actives.
Q: Do I need sunscreen when using the Medicube Txa Niacinamide serum?
A: Yes, the brand recommends pairing it with daytime sunscreen as part of the routine.
Q: How quickly does the Medicube Txa Niacinamide serum show results?
A: The brand cites its own internal testing showing visible results in skin clarity within 72 hours, though individual results can vary.
Q: What does arbutin do in the Medicube Txa Niacinamide serum?
A: It is included alongside niacinamide and tranexamic acid to help support brightening and a more even skin tone.
Q: Can the Medicube Txa Niacinamide serum be used on broken or irritated skin?
A: No, it is not intended for use on broken or highly irritated skin without medical advice.
Q: Do I need to buy other Medicube products to use the Medicube Txa Niacinamide serum?
A: No, it works as a standalone serum, though the brand also markets it alongside its own device and cream as part of a wider system for those who want one.
Disclaimer
The information provided is accurate to the best of our knowledge, but product packaging, ingredients, and specifications may change without notice. Please check the product packaging before use and consult the manufacturer or a relevant professional for any concerns or questions.