Vitamin B3 exists in two main forms: niacin (nicotinic acid) and niacinamide (nicotinamide). Both share the same vitamin status but differ in side effects and typical use. Niacin, at high doses, frequently causes a “flush” — skin redness, tingling and a warm sensation, mainly on the face, neck and arms. While harmless, this is often unpleasant enough that people stop supplementing. Niacinamide does not cause this effect.

Compare all the options in our vitamin B3 range in store.

Niacinamide offers several advantages for everyday use: no flush (no redness, tingling or warmth, a key comfort factor for many users); it is converted directly to NAD+ by the body via the efficient salvage pathway; and it is generally well tolerated at typical supplementation doses. Niacin still has its own specific relevance in certain contexts, particularly for lipid profile support — the choice between the two forms should be discussed with a healthcare professional based on your situation.

Niacinamide is also a widely used ingredient in cosmetic and topical dermatology products, but it’s important to distinguish topical use (creams, serums) from oral use (food supplements). Niacinamide B3 by Now Foods is a food supplement intended for oral use; for any question about cosmetic or dermatological use, consult a specialist.

Take 1 capsule per day with a meal to support absorption and digestive tolerance. The 100-capsule bottle covers about 3 months and 10 days of use.

For adults only. Not recommended for pregnant or breastfeeding women without medical advice. Consult a healthcare professional before starting supplementation if on medication or with a liver condition. Do not exceed the recommended daily dose. Store in a cool, dry place, away from light and humidity. Keep out of reach of children.

What is the difference between niacinamide and niacin?

Niacinamide (nicotinamide) and niacin (nicotinic acid) are both forms of vitamin B3. The key difference is that niacin causes flushing at high doses, while niacinamide does not. Both are converted to NAD+ in the body.

What is the dose of Now Foods Niacinamide?

Each vegetable capsule contains 500mg of niacinamide (vitamin B3). The recommended dose is one capsule a day with a meal. The 100-capsule bottle provides about 3 months of supplementation.

Is Now Foods Niacinamide suitable for vegetarians?

Yes. The capsule is hypromellose (plant cellulose) and the stearic acid excipient is plant-derived — suitable for vegetarians and vegans.

Herba Barona is an independent specialist supplement shop in the heart of Paris — established in 2006. What you order is genuinely on our shelves: we ship from our own stock, with no dropshipping and no long waits.

Visit us at 10 rue Théophile Roussel, Paris 12 — or use Click & Collect and pick up your order in-store. We also deliver across France and Europe. Friendly, expert advice in English from our team.

Where is the shop?

Herba Barona is at 10 rue Théophile Roussel, 75012 Paris — a two-minute walk from Ledru-Rollin (line 8), close to Bastille. Open Tuesday to Saturday, 9:30 am–6:30 pm.

Can I order online or collect in store?

Yes. We ship across France and Europe under the same conditions as our French store, or choose Click & Collect to pick up your order for free at our Paris shop.