--- product_id: 112338049 title: "Vita B3 Source Serum, 10% Niacinamide, Arbutin, Dark Spots, 1.35 fl oz" brand: "tiam" price: "¥5619" currency: JPY in_stock: true url: https://www.desertcart.jp/products/112338049-vita-b3-source-serum-10-niacinamide-arbutin-dark-spots-1 store_origin: JP region: Japan --- # 2% Arbutin to fade dark spots Lightweight, fast-absorbing formula 10% Niacinamide for potent brightening Vita B3 Source Serum, 10% Niacinamide, Arbutin, Dark Spots, 1.35 fl oz **Brand:** tiam **Price:** ¥5619 **Availability:** ✅ In Stock ## Summary > ✨ Unlock your skin’s true glow—because flawless waits for no one! ## Quick Answers - **What is this?** Vita B3 Source Serum, 10% Niacinamide, Arbutin, Dark Spots, 1.35 fl oz by tiam - **How much does it cost?** ¥5619 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/112338049-vita-b3-source-serum-10-niacinamide-arbutin-dark-spots-1) ## Best For - tiam enthusiasts ## Why This Product - Trusted tiam brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Layering:** Water-based, non-greasy texture absorbs instantly—perfect for AM & PM routines without heaviness. - • **Comfort-First Formula:** Infused with allantoin to hydrate and soothe, ensuring skin comfort even with high active concentration. - • **Clean Beauty Essential:** Vegan, fragrance-free, alcohol & essential oil-free—safe for sensitive skin and irritation-tested. - • **Proven Clarity Upgrade:** Backed by clinical studies with visible improvements in skin clarity, join 969+ happy users glowing daily. - • **Glow-Boosting Powerhouse:** Clinically tested 10% niacinamide + 2% arbutin blend targets uneven tone & dark spots for radiant skin. ## Overview TIAM Vita B3 Source Serum combines a potent 10% niacinamide and 2% arbutin formula to visibly brighten uneven skin tone and reduce dark spots. This lightweight, fast-absorbing serum is enriched with allantoin for hydration and comfort, formulated without alcohol, fragrance, or essential oils, making it ideal for all skin types. Clinically tested and vegan-certified, it’s a must-have daily treatment for radiant, clear skin. ## Description For Beginners : Is 10% Niacinamide suitable for daily use / multiple concerns? Yes. 10% Niacinamide supports multiple concerns like uneven tone, texture, and excess sebum. Sensitive skin: start with 1–2 drops, 2–3x/week, then increase gradually as your skin adjusts. For Sensitive Skin: Is 10% Niacinamide Serum suitable for sensitive skin? Yes. This serum passed a skin irritation test with a 0.0% irritation score and is formulated to be gentle. Since skin varies, start with a small amount 2–3x/week and increase gradually as your skin adjusts. Can I use 10% Niacinamide Serum with Vitamin C, Retinol, or AHA/BHA? Yes. It pairs well with vitamin C, retinol, AHA/BHA, hyaluronic acid, and peptides. If combining strong actives causes stinging or redness, reduce frequency or use them at different times of day. How long does it take to see results from a 10% Niacinamide Serum? Results vary by skin type and discoloration level. In clinical testing, tone changes appeared around 2 weeks, while set dark spots take longer. Use consistently for at least 2–4 weeks, adjusting based on your skin's response. Vita B3 Source Serum Vita B3 Mist Toner Vita B5 Toner Rice Barrier Toner Glow 333 Capsule Cream Panthenol Moist Cream Snail & Azulene Cream ## Features - [10% Niacinamide + 2% Arbutin Brightening Formula] A high-performance glow serum designed to help improve the look of uneven skin tone, dark spots, and dullness with a powerful yet gentle combination of niacinamide and arbutin. - [Lightweight, Fast-Absorbing & Non-Greasy Texture] Water-based serum absorbs quickly without stickiness, making it suitable for both morning and night routines and easy to layer with other skincare. - [Gentle Care with Skin Comfort in Mind] Formulated with allantoin to help hydrate and smooth skin texture while supporting a comfortable skincare experience, even with high niacinamide concentration. - [Clinically Tested for Skin Clarity Improvement] Tested in a clinical study with 22 women in Korea to help improve the appearance of skin clarity. Individual results may vary. - [Vegan Korean Skincare Essential] A vegan, fragrance-free, essential oil-free, alcohol-free formula that has completed a skin irritation test, thoughtfully developed as a Korean skincare solution for clearer, more radiant-looking skin. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07MJ3PJ2N | | Best Sellers Rank | #1,169 in Facial Serums | | Item Model Number | 8809373462482 | | Manufacturer | TIAM | | Upc | 889810294263 689245511696 759430487966 | ## Product Details - **Product Benefits:** Glow - **Scent:** Fragrance Free, Unscented - **Skin Type:** All - **Special Ingredients:** Benzoyl Peroxide - **Use for:** Face ## Images ![Vita B3 Source Serum, 10% Niacinamide, Arbutin, Dark Spots, 1.35 fl oz - Image 1](https://m.media-amazon.com/images/I/51bDFISSzhL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: For Beginners : Is 10% Niacinamide suitable for daily use / multiple concerns?** A: Yes. 10% Niacinamide supports multiple concerns like uneven tone, texture, and excess sebum. Sensitive skin: start with 1–2 drops, 2–3x/week, then increase gradually as your skin adjusts. **Q: For Sensitive Skin: Is 10% Niacinamide Serum suitable for sensitive skin?** A: Yes. This serum passed a skin irritation test with a 0.0% irritation score and is formulated to be gentle. Since skin varies, start with a small amount 2–3x/week and increase gradually as your skin adjusts. **Q: Can I use 10% Niacinamide Serum with Vitamin C, Retinol, or AHA/BHA?** A: Yes. It pairs well with vitamin C, retinol, AHA/BHA, hyaluronic acid, and peptides. If combining strong actives causes stinging or redness, reduce frequency or use them at different times of day. **Q: How long does it take to see results from a 10% Niacinamide Serum?** A: Results vary by skin type and discoloration level. In clinical testing, tone changes appeared around 2 weeks, while set dark spots take longer. Use consistently for at least 2–4 weeks, adjusting based on your skin's response. ## Frequently Bought Together - TIA'M Vita B3 Source, 1.35 fl oz, 10% Niacinamide Glow Serum with 2% Arbutin for Radiant & Balanced Skin, Vegan Korean Skin Care - TIA'M Alpha-5 Mela Care Cream, 1.69 fl oz, 5% Alpha Arbutin Glow Enhancing Cream with Glutathione & Niacinamide, Korean Skin Care - TIA'M Vita B3 Mist Toner, 6.76 fl oz, Glow Boosting Facial Spray with Niacinamide, Tranexamic Acid, and Vitamin C for All Skin Types, Hydrating & Refreshing, Korean Skin Care --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/112338049-vita-b3-source-serum-10-niacinamide-arbutin-dark-spots-1](https://www.desertcart.jp/products/112338049-vita-b3-source-serum-10-niacinamide-arbutin-dark-spots-1) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-02*