Product Detailed Description

Liposomal Vitamin B3 Niacin 80% — High Bioavailability Vitamin B3 Supplement

Product Overview

liposomal Vitamin B3 Niacin 80% is a premium-grade dietary supplement ingredient delivering nicotinic acid in an advanced liposomal delivery system. Niacin (CAS 59-67-6), also known as nicotinic acid, pyridine-3-carboxylic acid, or vitamin B3, is a water-soluble vitamin with the molecular formula C₆H₅NO₂ and a molecular weight of 123.11 g/mol. It occurs as colorless crystals or a white, crystalline powder that is odorless or almost odorless, with a melting point of 234–238°C. Niacin is sparingly soluble in water (1.67 g per 100 mL at 25°C), freely soluble in boiling water, soluble in 100 parts of ethanol, and practically insoluble in ether.

Niacin is an essential nutrient that serves as the precursor to the coenzymes nicotinamide adenine dinucleotide (NAD+) and nicotinamide adenine dinucleotide phosphate (NADP+). NAD functions in intracellular respiration and as a codehydrogenase with enzymes involved in the oxidation of fuel molecules, while NADP functions in reductive biosyntheses such as fatty acid and steroid synthesis. Over 400 enzymes require NAD to catalyze reactions within the body, including those involved in glycolysis, the Krebs cycle, and the electron transport chain. Niacin is available in two primary forms for supplementation: nicotinic acid (niacin) and niacinamide. While both provide vitamin B3 activity, only nicotinic acid significantly affects cholesterol levels and causes flushing, whereas niacinamide is used primarily for skin health and DNA repair support without flushing. This product delivers the nicotinic acid form, which is the preferred form for cardiovascular and lipid regulation applications.

Why Liposomal Technology?

Conventional nicotinic acid presents significant formulation and bioavailability challenges. The compound undergoes rapid metabolism, has poor solubility, and causes off-target effects—particularly the characteristic flush—that limit patient compliance and therapeutic efficacy. The niacin flush is triggered by activation of the hydroxycarboxylic acid receptor 2 (HCA2) in subcutaneous blood vessels, leading to prostaglandin production and cutaneous vasodilation. This reaction can begin at supplemental doses as low as 30–50 mg of nicotinic acid, although sensitivity varies among individuals.

Liposomal encapsulation provides four critical advantages:

1. Significantly Enhanced Bioavailability and Plasma Retention — Liposomal delivery results in superior absorption of niacin. A randomized, double-blind, two-period crossover clinical trial enrolled 20 healthy Korean adults to assess the absorption of liposomal multinutrients compared to composition-matched non-liposomal comparators. Pharmacokinetic parameters including Cmax, Tmax, and incremental area under the curve (iAUC) were analyzed for vitamin B3. The pooled iAUC was 2–3.5× greater with liposomes, supporting improved short-term absorption. No clinically significant adverse events were observed during the study period.

2. Controlled Release and Reduced Flushing — The liposomal structure functions as a controlled-release system, allowing for sustained drug delivery over an extended period. Slow-release niacin formulations have a dissolution time of over 12 hours and reduced flushing compared to immediate-release niacin, whose peak blood levels are attained 30 to 60 minutes after administration. Liposomal encapsulation provides a similar sustained-release effect while protecting niacin from premature degradation.

3. Enhanced Stability and Protection — The phospholipid layer acts as a “protective shell,” effectively preventing active ingredients from degrading due to light, oxidation, or pH changes. B-complex vitamins, including niacin, are sensitive to light, pH conditions, and temperature, and liposomal encapsulation provides protection against these environmental stressors.

4. Reduced Toxicity and Improved Tolerability — By encapsulating niacin, liposomes can minimize systemic exposure to toxic metabolites, thereby reducing adverse effects. This is particularly important for niacin, which can cause hepatotoxicity at high doses of sustained-release formulations.

Product Specifications

Key Features

• High Purity — Standardized to ≥80% niacin in the liposomal formulation, with assay on dry basis of 99.0%–101.0% available.

• Liposomal Enhancement — Randomized crossover clinical trial demonstrated 2–3.5× greater pooled iAUC for vitamin B3 compared to non-liposomal comparators, with significantly higher plasma concentrations in prespecified time windows.

• NAD+ Precursor — Niacin is converted into NAD+, a coenzyme essential for over 400 enzymatic reactions, including glycolysis, the Krebs cycle, and electron transport. As a precursor of NAD+ and NADP+, niacin directly regulates metabolism and promotes cross-talk between environmental and energetic fluctuations.

• Clinically Validated for Lipid Regulation — A meta-analysis of 22 RCTs demonstrated that niacin supplementation significantly reduced triglycerides (WMD: −33.4 mg/dL, p<0.001) and increased HDL cholesterol.

• Controlled Release and Reduced Flushing — Liposomal encapsulation provides sustained release similar to extended-release niacin formulations, which have reduced flushing compared to immediate-release niacin.

• DNA Repair and Cellular Health — NAD+ is essential for DNA repair, and niacin supports healthy DNA repair and skin integrity through PARP-mediated mechanisms.

• Superior Stability — The phospholipid bilayer protects niacin from light, pH, and temperature-induced degradation.

• Water-Dispersible — Liposomal powder offers excellent dispersibility in aqueous systems; suitable for capsules, tablets, powder drink mixes, and functional beverages.

• Batch Traceability — Complete COA, HPLC chromatogram, and identity data provided for each batch.

Application & Formulation Guidance

Recommended Dosage

The Recommended Dietary Allowance (RDA) for niacin is 16 mg/day of niacin equivalents (NEs) for adult men and 14 mg/day of NEs for adult women. During pregnancy and lactation, the requirement increases to 18 mg/day and 17 mg/day, respectively. The Tolerable Upper Intake Level (UL) for niacin for adults is 35 mg/day, which was based on flushing as the critical adverse effect. For supplemental use, many B-complex and multivitamin supplements provide 10–50 mg of niacin. Liposomal formulations may provide 10–20 mg of niacin per serving, with higher doses available for targeted applications. For lipid regulation, high-dose niacin (500–2,000 mg/day) is used under medical supervision and is available as an FDA-approved prescription drug (Niaspan) for lipid disorders. Clinical trials have used extended-release niacin tablets at 1,500–2,000 mg/day, with dosing ranging from 500 to 3,000 mg. The AIM-HIGH trial randomized participants to receive niacin extended-release tablets 1500–2000 mg/day (n=1,718) or matching placebo. A dose escalation protocol from 250 mg (week 1) to 500 mg (week 2) to 750 mg (weeks 3–12) has been used in clinical settings. Liposomal formulations may allow for more efficient utilization of lower doses due to enhanced bioavailability and sustained release.

Important Safety Information: Niacin causes a flushing reaction characterized by warmth, redness, itching, or tingling of the skin, which can begin at doses as low as 30–50 mg. This reaction is harmless but can be uncomfortable. High-dose niacin (500–2,000 mg/day) can cause hepatotoxicity, hyperglycemia, and hyperuricemia, and should only be used under medical supervision with regular liver function monitoring. Individuals with active liver disease, active peptic ulcer, or arterial bleeding should not use high-dose niacin. Pregnant or lactating women and children should consult a healthcare professional before use. Niacin may interact with statins, anticoagulants, and diabetes medications. Liposomal niacin may reduce flushing compared to immediate-release niacin, but individual sensitivity varies.

Shipping & Lead Time

• Stock Orders: 3–5 business days after payment confirmation.

• Bulk / Custom Orders: 2–3 weeks, depending on quantity and customization requirements.

• Shipping Methods: International Express (FedEx, DHL, UPS), air freight, and sea freight.

• Coverage: Worldwide shipping, including remote areas.