Cos De BAHA Niacinamide 10 Serum (N) 30ml30ml

Key Ingredients

• Niacinamide (stated 10%): the headline active, consistently stated at 10% across retailer listings (DodoSkin, Amazon, YesStyle). This is a brand-marketing claim; MedEasy found no independent third-party lab assay confirming the exact concentration, which is standard for this product category. Niacinamide supports a more even skin tone, helps with the appearance of pores, and supports the skin barrier
• Zinc PCA (stated 1%): included alongside Niacinamide for its oil-balancing and skin-calming reputation, particularly useful for oily or acne-prone skin
• Organic Aloe Barbadensis Leaf Extract, Sodium Hyaluronate, Allantoin: included for hydration and skin-soothing support
• Organic Hamamelis Virginiana (Witch Hazel), Rosmarinus Officinalis (Rosemary), Eucalyptus Globulus, Thymus Vulgaris (Thyme), Aspalathus Linearis (Rooibos): a blend of organic botanical extracts included for additional soothing and antioxidant-supportive properties
• Formula-version note: Cos De BAHA has iterated this product's formula over time; the ingredient list below reflects the current "N Niacinamide 10 Serum" formula found via retailer sourcing. Customers should check the ingredient panel printed on their physical product box, since online retailer data can occasionally lag behind reformulations
• Full confirmed INCI list (current formula): Organic Aloe Barbadensis Leaf Extract, Niacinamide, Propanediol, Glycerin, 1,2-Hexanediol, Zinc PCA, Sodium Hyaluronate, Allantoin, Dipotassium Glycyrrhizate, Organic Hamamelis Virginiana (Witch Hazel) Leaf Extract, Organic Rosmarinus Officinalis (Rosemary) Extract, Organic Eucalyptus Globulus Leaf Extract, Organic Thymus Vulgaris (Thyme) Extract, Organic Aspalathus Linearis Extract

Key Features

• Cos De BAHA was founded in 2019 by Sung Il Park and Jun Won Lee, initially launching on US Amazon
• Manufactured by an unnamed contract skincare specialist in South Korea, described by the brand as having over 30 years of manufacturing experience; MedEasy could not confirm the specific facility name
• Formulated to be free from parabens, gluten, formaldehyde, added fragrance, and sulfates, per the brand's stated positioning

Benefits

• Niacinamide at a stated 10% concentration is associated with supporting a more even skin tone and refined pore appearance with regular use
• Zinc PCA at 1% is associated with oil-balancing support, useful for oily or acne-prone skin
• The organic botanical blend contributes additional soothing and antioxidant-supportive properties alongside the primary actives
• Fragrance-free formulation may be preferable for those with fragrance sensitivities

Who Can Use This Product

• Adults with oily or acne-prone skin looking for a Niacinamide-and-Zinc-based serum to support oil balance and an even skin tone
• Those with known sensitivities to any listed botanical extract should patch-test before regular use
• Not intended to replace prescription treatment for moderate-to-severe acne; consult a dermatologist for persistent or severe acne

How to Use

• Apply a few drops to clean, dry skin after cleansing, before heavier creams or oils
• Gently pat or massage into the face and neck
• Can be used once or twice daily; introduce gradually if new to active-ingredient serums
• Follow with a moisturizer and, in the daytime, a broad-spectrum sunscreen

Storage & Safety

• Store in a cool, dry place away from direct sunlight
• Keep out of reach of children
• Perform a patch test before first use
• Discontinue use and consult a doctor or dermatologist if irritation, redness, or an allergic reaction develops

FAQ (Frequently Asked Questions)

Q: Is the 10% Niacinamide claim verified?

A: This figure is consistently stated across multiple retailer listings, but MedEasy found no independent third-party lab assay confirming the exact concentration, which is standard for this product category.

Q: Has this product's formula changed over time?

A: Yes, MedEasy found evidence that Cos De BAHA has iterated this product's formula over time. This description reflects the current formula found via retailer sourcing; customers should check the ingredient panel printed on their physical product box for the exact formula in their unit.

Q: Who manufactures this product?

A: Cos De BAHA states its products are manufactured by a South Korean skincare specialist with over 30 years of experience, though MedEasy could not confirm the specific facility name.

Q: Is this product fragrance-free?

A: Yes, per the brand's stated formulation, it is free from added fragrance, parabens, gluten, formaldehyde, and sulfates.

Q: What does the "(N)" in the product name mean?

A: This corresponds to Cos De BAHA's internal product-line naming system; "N" designates this Niacinamide-and-Zinc formula, distinct from other serums in their range (such as "AN" for Azelaic Acid + Niacinamide or "TN" for Tranexamic Acid + Niacinamide).