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

Tiam Vita B3 Source Niacinamide Serum (40ml) is a brightening serum from TIAM, a South Korean skincare brand, per the brand's official global site.
Sourcing note: the ingredient list below is confirmed via TIAM's own official site and cross-checked against incidecoder.com, with no conflict found. 40ml is the only size found sold across the official site and every retailer checked (Jolse, La Mi Fragrance, Wholesale Beauty Hub, and others), giving high confidence in the ingredient-to-SKU match. Despite the catalog name emphasizing "Niacinamide," the confirmed formula is a dual-active serum also containing 2% Arbutin, a tyrosinase-inhibiting brightening agent -- this is disclosed here since it is not obvious from the product name.
Apply evenly to the face and gently pat for better absorption. During the day, follow with sunscreen, per the official usage instructions.
Store in a cool, dry place away from direct sunlight. Keep out of reach of children. Avoid contact with eyes; rinse with water if contact occurs. Discontinue use if irritation occurs.
Q: Does Tiam Vita B3 Source Niacinamide serum contain more than just niacinamide?
A: Yes, despite the name emphasising niacinamide, the confirmed formula is a dual-active serum that also contains 2% Arbutin, a second brightening ingredient that works on dark spots alongside the 10% Niacinamide.
Q: Is Tiam Vita B3 Source Niacinamide serum fragrance-free?
A: Yes, it is explicitly marketed as alcohol-free and fragrance and essential-oil-free.
Q: Do I need sunscreen when using Tiam Vita B3 Source Niacinamide serum?
A: Yes, follow it with sunscreen during the day, since brightening actives like Arbutin can make skin more responsive to sun exposure and sunscreen also protects the results you are working toward.
Q: How do I apply Tiam Vita B3 Source Niacinamide serum?
A: Apply it evenly to the face and gently pat it in for better absorption, ideally after cleansing and before a moisturiser.
Q: What does Tiam Vita B3 Source Niacinamide serum help with?
A: It is marketed to help fade the look of dark spots, age spots, and sun spots by combining Niacinamide and Arbutin for brightening, along with Sodium Hyaluronate for hydration.
Q: Who should be cautious about using Tiam Vita B3 Source Niacinamide serum?
A: Anyone with a known sensitivity to Arbutin or any of its other listed ingredients should patch-test on a small area before regular use.
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.