Vitamin C is perhaps the most studied nutrient in the world. It plays a role in immune function, collagen production, antioxidant protection, energy metabolism and iron absorption — yet the human body cannot make it, so a daily dietary source is essential.

Browse our full Doctor’s Best range in store.

Vitamin C contributes to the normal function of the immune system, supporting white blood cell activity — particularly relevant during seasonal changes or periods of fatigue. As a major antioxidant, it contributes to protecting cells from oxidative stress and helps regenerate vitamin E. It is essential for the synthesis of collagen, the body’s most abundant structural protein, needed for skin, joints, bones, gums and blood vessels. It also contributes to normal energy metabolism, to the reduction of tiredness and fatigue, and it increases the absorption of iron from plant sources — particularly relevant for people on a vegetarian or vegan diet.

Quali-C is a patented vitamin C made by DSM in Scotland to strict pharmaceutical standards. Unlike generic vitamin C, Quali-C offers full traceability, batch-by-batch purity testing and European manufacturing — one of the highest-quality vitamin C forms available worldwide.

Take 1 capsule per day with a meal for better digestive tolerance. The 120-capsule bottle provides 4 months of use. As vitamin C is water-soluble, the body naturally clears any unused excess, making this dose well suited to everyday use. For those who prefer, the capsule can be opened and the powder mixed into a drink or food.

Food supplement. Not a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily dose. Store away from heat and humidity.

Why choose a 1000mg vitamin C capsule?

A 1,000 mg dose per capsule provides significant support in a single daily intake, suited to people wanting extra vitamin C support during seasonal changes, periods of fatigue, or an active lifestyle. The Quali-C form guarantees pharmaceutical-grade purity made in Scotland.

What is the difference between Quali-C and standard vitamin C?

Quali-C is a patented vitamin C, manufactured by DSM in Scotland to strict pharmaceutical standards, with full traceability and batch-by-batch purity testing — one of the highest-quality vitamin C forms on the market.

Is Doctor’s Best vitamin C suitable for vegetarians?

Yes. Vitamin C 1000mg by Doctor’s Best is packed in vegetable capsules made from hypromellose, contains no animal-derived ingredient, and is also gluten-free, non-GMO and soy-free.

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.