--- product_id: 10327868 title: "Source Naturals Niacinamide B-3, Dietary Supplement - 100 mg - 100 Tablets" brand: "source naturals" price: "¥1966" currency: JPY in_stock: true reviews_count: 8 category: "Source Naturals" url: https://www.desertcart.jp/products/10327868-source-naturals-niacinamide-b-3-dietary-supplement-100-mg-100 store_origin: JP region: Japan --- # Vegan, allergen-free formula 100 mg pure Niacinamide per tablet Made in USA, cGMP & FDA compliant Source Naturals Niacinamide B-3, Dietary Supplement - 100 mg - 100 Tablets **Brand:** source naturals **Price:** ¥1966 **Availability:** ✅ In Stock ## Summary > 💥 Elevate your daily energy—flush-free, fuss-free, and future-ready! ## Quick Answers - **What is this?** Source Naturals Niacinamide B-3, Dietary Supplement - 100 mg - 100 Tablets by source naturals - **How much does it cost?** ¥1966 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/10327868-source-naturals-niacinamide-b-3-dietary-supplement-100-mg-100) ## Best For - source naturals enthusiasts ## Why This Product - Trusted source naturals brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Balanced Energy Boost:** 100 mg Niacinamide supports over 50 metabolic reactions for steady vitality without the flush. - • **Convenient Daily Dose:** One uncoated tablet daily fits seamlessly into your busy routine for consistent wellness support. - • **Clean & Inclusive Formula:** Free from corn, dairy, egg, gluten, and soy—perfect for vegan and allergen-conscious lifestyles. - • **Trusted Quality Assurance:** Crafted in Scotts Valley, CA under strict FDA cGMP standards for premium purity and safety. - • **Proven Customer Satisfaction:** Rated 4.5 stars by 500+ users who experience real energy and focus improvements. ## Overview Source Naturals Niacinamide B-3 delivers a precise 100 mg dose of vitamin B3 in a clean, vegan tablet designed to support over 50 enzymatic metabolic processes. Manufactured in the USA under FDA cGMP guidelines, this supplement offers a trusted, allergen-free formula that promotes balanced energy without the common niacin flush, making it ideal for health-conscious professionals seeking reliable daily vitality. ## Description Buy Source Naturals Niacinamide B-3, Dietary Supplement - 100 mg - 100 Tablets on desertcart.com ✓ FREE SHIPPING on qualified orders Review: thankful for such a cheap supplement that I get real results from! - Why did you pick this product vs others?: I was happy to find a 100mg tablet, most are higher. I split them in half to take 3-4 times a day as Dr Mercola suggests, as being water soluble it passes through quickly. There's been some studies casting some suspicion on higher doses, and these small tablets let me keep it low, and even cheaper. I split two tabs each morning, and leave them on the counter to easily take throughout the day. Since taking this my energy has evened out, and my drowsy afternoons leading to naps have pretty much stopped, I'm so relieved. I hope the mitochondrial and brain benefits are true, but regardless I'm seeing real results and will continue! Review: Good pills - I like these, I don't choke on these as often as the others pills I've tried of the Niacinimide ## Features - Niacinamide, also known as vitamin B-3, functions in over 50 metabolic reactions, most of which are enzymatic. - Niacinamide functions as niacin, without the characteristic “flush”.* - Suggested Use:1 tablet daily. - Over 40 Years of Trust. Source Naturals was created in 1982 by CEO Ira Goldberg to support everyone’s potential to enjoy optimal health. - Manufactured in the USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration (FDA). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00020I7IK | | Age Range Description | Adult | | Allergen Information | Corn-Free, Dairy Free, Egg Free, Gluten Free, Soy Free | | Best Sellers Rank | #37,413 in Health & Household ( See Top 100 in Health & Household ) #61 in Vitamin B3 (Niacin) Supplements | | Brand | Source Naturals | | Brand Name | Source Naturals | | Container Type | Bottle | | Customer Reviews | 4.5 out of 5 stars 514 Reviews | | Diet Type | Vegan | | Dosage Form | Tablet | | Flavor | Unflavored | | Global Trade Identification Number | 00021078005032 | | Item Dimensions | 1.71 x 1.71 x 3.03 inches | | Item Form | Tablet | | Item Weight | 0.09 Pounds | | Manufacturer | Threshold Enterprises | | Manufacturer Part Number | SN0503 | | Model Name | Niacinamide B-3, 100 mg Dietary Supplement | | Model Number | SN0503 | | Number of Items | 1 | | Pill Coating | Uncoated | | Primary Supplement Type | Vitamin B3 | | Product Benefits | Energy | | Special Ingredients | Niacin (as niacinamide) | | Specific Uses For Product | Energy | | Supplement Formulation | Individual Supplement | | UPC | 021078005032 | | Unit Count | 100.0 Count | ## Product Details - **Brand:** Source Naturals - **Diet Type:** Vegan - **Flavor:** Unflavored - **Item Form:** Tablet - **Primary Supplement Type:** Vitamin B3 ## Images ![Source Naturals Niacinamide B-3, Dietary Supplement - 100 mg - 100 Tablets - Image 1](https://m.media-amazon.com/images/I/61MSsDMnnHL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ thankful for such a cheap supplement that I get real results from! *by B***Y on June 28, 2025* Why did you pick this product vs others?: I was happy to find a 100mg tablet, most are higher. I split them in half to take 3-4 times a day as Dr Mercola suggests, as being water soluble it passes through quickly. There's been some studies casting some suspicion on higher doses, and these small tablets let me keep it low, and even cheaper. I split two tabs each morning, and leave them on the counter to easily take throughout the day. Since taking this my energy has evened out, and my drowsy afternoons leading to naps have pretty much stopped, I'm so relieved. I hope the mitochondrial and brain benefits are true, but regardless I'm seeing real results and will continue! ### ⭐⭐⭐⭐⭐ Good pills *by S***. on May 13, 2026* I like these, I don't choke on these as often as the others pills I've tried of the Niacinimide ### ⭐⭐⭐⭐ Seems to be effective *by S***K on December 25, 2013* I purchased this as part of my MTHFR variation protocol. Whenever I am "over-methylated" I take half to one of these capsules. It seems to help, and no adverse reactions so I can't complain. ## Frequently Bought Together - Source Naturals Niacinamide B-3, 100 mg Dietary Supplement - 100 Tablets - NOW Foods Supplements, Vitamin B-1 100 mg, Energy Production*, Nervous System Health*, 100 Tablets - NOW Foods Supplements, Niacinamide (Vitamin B-3) 500 mg, Energy Production*, 100 Veg Capsules --- ## 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/10327868-source-naturals-niacinamide-b-3-dietary-supplement-100-mg-100](https://www.desertcart.jp/products/10327868-source-naturals-niacinamide-b-3-dietary-supplement-100-mg-100) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-04*