B vitamins exist in different chemical forms, and not all are equally effective. Coenzyme (active) forms are those the body can use directly, without needing to convert them in the liver — a major advantage, since some people carry genetic polymorphisms (such as the MTHFR mutation affecting vitamin B9) that reduce their ability to convert standard forms into active ones. In Dynveo’s Multi B, vitamin B6 is provided as pyridoxal-5-phosphate (P5P), B9 as methyltetrahydrofolate (patented Quatrefolic), and B12 combines three active forms — adenosylcobalamin, hydroxycobalamin and methylcobalamin — while B2 comes as riboflavin-5-phosphate, immediately functional. This systematic choice of bioactive forms sets the formula apart from standard B-complexes built on less readily absorbed synthetic forms.

B vitamins take part in a considerable number of metabolic reactions. B1 (thiamine) and B2 (riboflavin) contribute to normal energy-yielding metabolism, converting carbohydrates, fats and protein into cellular energy. B3 (niacin) contributes to normal function of the nervous system and to the maintenance of normal mucous membranes. B5 (pantothenic acid) contributes to normal mental performance and takes part in the synthesis of certain hormones. B6 plays a central role in neurotransmitter synthesis (serotonin, dopamine, GABA), which explains its importance for mood balance and sleep quality. B8 (biotin) contributes to the maintenance of normal hair, skin and nails. B9 and B12 are essential for cell division, red blood cell formation and normal function of the immune system. Together, these eight vitamins form a metabolic network in which each reinforces the action of the others.

The vitamin B9 in Multi B is provided as Quatrefolic, a patent from Gnosis by Lesaffre that delivers (6S)-5-methyltetrahydrofolate as a glucosamine salt — the most advanced, bioavailable folate form currently on the market. Unlike synthetic folic acid, Quatrefolic requires no enzymatic conversion, bypassing the limitations linked to MTHFR gene polymorphisms, which affect around 40% of the European population. Beyond bioavailability, this active form takes part directly in the methylation cycle, a fundamental metabolic process involved in gene expression regulation, DNA synthesis, homocysteine metabolism and neurotransmitter production — supporting cardiovascular, cognitive and cellular health more broadly.

Inositol (myo-inositol) is a polyol naturally present in human cells, sometimes considered a pseudo-B-vitamin. It takes part in cell signalling, notably via inositol phosphate second messengers, and plays a role in lipid metabolism and insulin sensitivity; recent research has also looked at its potential role in emotional balance and stress management, though this remains an area for further study. PABA (para-aminobenzoic acid), formerly referred to as vitamin B10, is an organic compound involved in folic acid synthesis by gut bacteria. It contributes to the maintenance of hair and skin pigmentation and supports certain metabolic pathways related to cellular protection. Including these two cofactors broadens the formula’s scope beyond the classic B vitamins alone.

Take 1 capsule a day with a meal and a large glass of water. Taking it in the morning or at midday is generally advised, as B vitamins can have a stimulating effect on energy and focus; sensitive individuals may prefer to avoid taking it late in the day so as not to disturb sleep onset. A typical course runs for two to three months, repeatable as needed — periods of intense stress, mental workload or seasonal change are particularly good times to start. The 60-capsule bottle covers two months at one capsule a day.

This food supplement should not replace a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily dose. Keep out of reach of young children. If pregnant, breastfeeding or taking medication, consult a healthcare professional before use. Store in a cool, dry place away from light and humidity. A yellow tint to urine after taking this product is a normal, harmless sign of excess riboflavin (vitamin B2) being eliminated.

Who can take Dynveo’s Multi B complex?

It suits most adults and teenagers from age 12. It is particularly well suited to people on a vegetarian or vegan diet (the formula is 100% plant-based), students during exam periods, busy professionals under sustained stress, and older adults wanting to support cognitive function and vitality. Medical advice is recommended before use during pregnancy.

Why choose coenzyme B vitamins over standard ones?

Coenzyme forms can be used directly by the body without a liver conversion step — a significant advantage for people with certain genetic polymorphisms (MTHFR, MTRR, CBS) that limit conversion of synthetic forms. With coenzyme B vitamins, absorption is immediate and effectiveness does not depend on individual metabolic capacity.

Can Multi B be combined with other Dynveo supplements?

Yes — it combines well with magnesium, vitamin D, omega-3s or adaptogens such as ashwagandha or rhodiola. If you are already taking a multivitamin containing B vitamins, check the combined dosages to avoid an excessive intake. Our team at Herba Barona can help you build a supplementation routine suited to your needs.

How long does a bottle of Multi B Dynveo last?

The bottle contains 60 capsules. At one capsule a day, it covers two months. A two to three month course is generally recommended to see the full benefits on energy, focus and overall balance, and can be repeated several times a year, particularly at seasonal changes or during periods of increased fatigue.

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.