Nutri-Leaf
Vitamin B Complex
1 capsule per dayHPMC vegetable capsule
Subscription available
The B vitamins are the body's energy-management team. All eight work together in energy-yielding metabolism — the process that releases energy from food — and several carry additional authorised claims for the reduction of tiredness and fatigue, normal mental performance and normal psychological function. The Energy & Mental Clarity collection is built around the one Nutri-Leaf formula that delivers all eight in a single daily capsule.
How B vitamins work in energy metabolism
Energy-yielding metabolism turns carbohydrates, fats and protein into the energy the body runs on. The B vitamins act as cofactors in this process: without a steady supply, the metabolic machinery runs understaffed. Vitamins B1, B2, B6 and B12 carry the authorised claim "contributes to normal energy-yielding metabolism". Vitamins B2, B6 and B12 additionally contribute to the reduction of tiredness and fatigue. Vitamin B5 (pantothenic acid) contributes to normal mental performance.
Key nutrients for energy and mental performance
- Vitamin B1 (thiamin), B2 (riboflavin), B6 and B12 — contribute to normal energy-yielding metabolism.
- Vitamins B2, B6 and B12 — contribute to the reduction of tiredness and fatigue.
- Vitamin B5 (pantothenic acid) — contributes to normal mental performance.
- Vitamins B6 and B12 — contribute to the normal functioning of the nervous system and to normal psychological function.
- Folate (vitamin B9) — contributes to the reduction of tiredness and fatigue.
What's in this collection
Vitamin B Complex delivers all eight B vitamins — B1, B2, B3, B5, B6, B7, B9 and B12 — each at 100% of the Nutrient Reference Value, in one daily capsule. The formula is manufactured in Germany in an FSSC 22000 certified facility.
Energy habits beyond the capsule
A B-vitamin capsule supplies the cofactors; the body still needs fuel, sleep and movement. Regular meals, adequate sleep and daily movement all shape energy levels far more than any supplement can. Think of the B complex as the daily foundation and the habits as the building. For more context, read Energy & Vitality and Brain & Focus in the health guide, and our guide to understanding NRV to read the label numbers with confidence.
Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.
Our approach
One quality standard across every collection.
Our collections group formulas by everyday need — immune support, energy, beauty from within and an active lifestyle — so you can start from the goal that matters to you. Whatever you choose, the same standards apply: a short ingredient list printed in full, plant-based capsules and manufacturing in Germany.
- German manufacturing
Every supplement is developed by Nutri-Leaf UG and produced in Germany by an FSSC 22000-certified producer.
- Plant-based capsules
Every formula uses an HPMC capsule shell — plant-based, with no gelatine and no animal-derived ingredients.
- Transparent formulas
Every ingredient and every dosage is listed on the label — what you see is exactly what is in the capsule.
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Four targeted formulas. One quality standard — German manufacturing with full ingredient transparency.
Immune Support
Vitamin C, zinc and selenium contribute to the normal function of the immune system. With echinacea, ginger and rose hip in one daily capsule.
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Energy & B Vitamins
All eight B vitamins in active forms — supports energy metabolism and reduces tiredness and fatigue.
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Beauty from Within
Biotin, zinc, copper and plant extracts — supporting normal skin, hair and nails from the inside out.
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Not sure where to start? Find the right supplement for your wellness goals — from immune support to daily energy.
Immune Support
Vitamin C, zinc and selenium for daily immune system support. With echinacea and ginger.
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Energy & Focus
All eight B vitamins in active forms to support energy-yielding metabolism.
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Beauty from Within
Biotin, zinc, copper and plant extracts for normal skin, hair and nails.
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Active Lifestyle
Energy, recovery and daily support for active routines.
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Related reading
Guides about ingredients and nutrition.
beginners
The Beginner’s Guide to Building a Daily Supplement Routine
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immune health
Zinc and Selenium: The Dynamic Duo for Immune Health
Zinc and selenium are essential minerals for normal immune function. Learn how they work together, where to find them in food, and when s...
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consumer guide
How to Read a Supplement Label Like a Nutritionist
Confused by supplement labels? Learn to decode ingredient lists, nutrient amounts, certification marks, and marketing claims — so you kno...
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Questions about our supplements.
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Explore our complete supplement range or learn about our German manufacturing quality. Four targeted formulas — one standard of transparency.
Free EU shipping from €20 · FSSC 22000-certified producer · Made in Germany · Vegan capsules · 14-day return