21st Century Niacinamide – 500 mg (Prolonged Release)
Energy & Circulatory Support • High‑Dose Vitamin B‑3 • 110 Tablets
21ST CENTURY – NIACINAMIDE 500 MG (Prolonged Release)
Steady‑Release Vitamin B‑3 for Energy, Skin, & Circulation
Description:
This prolonged‑release niacinamide (Vitamin B‑3) formula offers 500 mg per tablet and gently releases nutrients over time—avoiding flushing while supporting energy metabolism, blood flow, skin health, and overall vitality. Vegan, gluten‑free, non‑GMO, and lab‑tested for quality. :contentReference[oaicite:3]{index=3}
Key Benefits:
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No Flush Formula: Prolonged release avoids the typical niacin flush
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Energy & Circulation: Supports metabolic and cardiovascular health
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Skin & Joint Support: Gentle, anti-inflammatory form ideal for skin and recovery
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High Potency Dose: 500 mg (3,125% DV) per tablet
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Clean & Trusted: Gluten‑free, non‑GMO, vegan, lab‑tested, budget‑friendly :contentReference[oaicite:4]{index=4}
Suggested Use:
Take 1 tablet daily with a meal, or as directed by your healthcare professional. Do not exceed the recommended dose. :contentReference[oaicite:5]{index=5}
Ingredients:
Active Ingredient: Niacinamide – 500 mg per tablet (3,125% DV)
Other Ingredients: Cellulose, Hydroxypropyl Methylcellulose, Stearic Acid; <2% of: Gum Acacia, Magnesium Silicate, Magnesium Stearate, PEG, Polysorbate, Polyvinyl Alcohol, Silicon Dioxide :contentReference[oaicite:6]{index=6}
Free From: Sugar, salt, yeast, preservatives, artificial colors or flavors. Vegan‑friendly formula. :contentReference[oaicite:7]{index=7}
Storage:
Store at room temperature in a cool, dry place. Keep out of reach of children. Do not use if seal is broken. :contentReference[oaicite:8]{index=8}
Caution:
Consult a healthcare provider if pregnant, nursing, taking medications, or managing a medical condition. Intended for adult use only. :contentReference[oaicite:9]{index=9}
⭐ Verified iHerb Customer Reviews
iHerb customer (France)
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“Solid quality supplement with pure nicotinamide… prolonged-release formula helps avoid the typical flushing effect… noticeable improvement after a few weeks.” :contentReference[oaicite:10]{index=10}
iHerb customer (UAE)
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“Helped with my acne… supports skin health, energy levels.” :contentReference[oaicite:11]{index=11}
iHerb customer (USA)
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“Steady effect throughout the day… I’ve felt calmer and more focused… high‑quality and affordable option.” :contentReference[oaicite:12]{index=12}
