
Product overview
Key Ingredients
- Tranexamic Acid: a brightening ingredient commonly used in serums to help even out the look of skin tone and reduce the appearance of dark spots
- Niacinamide (Vitamin B3): supports the skin barrier, helps improve the appearance of pores, and works alongside brightening ingredients for a more even skin tone
- Also contains a supporting base of water, humectants (such as Butylene Glycol), and skin-conditioning agents per the listed ingredient panel
Key Features
- From Cos De BAHA, a Korean skincare brand; "TN" in this product's name refers to its two headline actives, Tranexamic acid and Niacinamide
- Lightweight serum formulated for daily use in a brightening skincare routine
- Naming note: the catalog listing for this product contains a double space between "De" and "BAHA" ("Cos De BAHA"); this is preserved exactly as listed, though the brand's official name is written as "Cos De BAHA"
Benefits
- Marketed to help even out the appearance of skin tone and reduce the look of dark spots and discoloration over time
- Niacinamide content may help support the skin's barrier function alongside the brightening effect
Who Can Use This Product
- Adults looking to address uneven skin tone or dark spots as part of a regular skincare routine
- Those with known sensitivities to Niacinamide or Tranexamic Acid, or with generally reactive/sensitive skin, should patch-test before regular use
- Pregnant or breastfeeding individuals, or those with underlying medical conditions, should consult a doctor before using products containing Tranexamic Acid
- Discontinue use if irritation, redness, or an allergic reaction occurs
How to Use
- Apply after cleansing and toning, before heavier creams or moisturizers
- Use a few drops and gently pat or massage into the face and neck
- Follow with a moisturizer and, during the day, a sunscreen, since brightening routines can increase the skin's need for sun protection
- Perform a patch test on a small area of skin before first full use
Storage & Safety
- Store in a cool, dry place away from direct sunlight
- Keep the bottle tightly closed after use
- Keep out of reach of children
- Avoid contact with eyes; rinse thoroughly with water if contact occurs
- Discontinue use and consult a doctor if irritation or an allergic reaction develops
FAQ (Frequently Asked Questions)
Q: What does "TN" stand for in this product's name?
A: It refers to the two headline active ingredients: Tranexamic acid and Niacinamide.
Q: What does this serum help with?
A: It is marketed to help even out the appearance of skin tone and reduce the look of dark spots and discoloration over time.
Q: Why does the product name have a double space in "Cos De BAHA"?
A: This reflects the exact text as listed in the MedEasy catalog; the brand's official name is written as "Cos De BAHA."
Q: Can this be used with sunscreen?
A: Yes -- daytime use of a sunscreen is recommended alongside brightening ingredients like Tranexamic Acid and Niacinamide.
Q: Is this safe to use during pregnancy?
A: Those who are pregnant or breastfeeding should consult a doctor before using products containing Tranexamic Acid.
The information provided is accurate to our best practices, but it does not replace professional medical advice. We cannot guarantee its completeness or accuracy. The absence of specific information about a drug should not be seen as an endorsement. We are not responsible for any consequences resulting from this information, so consult a healthcare professional for any concerns or questions.