RAW B-Vitamin
RAW B-Vitamin
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Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup
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The highest-concentration soluble B1 available to home growers
RAW B-Vitamin contains 1% vitamin B1, the highest concentration of water-soluble vitamin B1 available to the home gardener, alongside 9% magnesium as an optimal magnesium supplement. B-vitamins work as co-enzymes at the cellular level, activating the enzymes that drive chemical reactions inside plant cells — plants cannot absorb large enzymes through the roots, but small co-enzymes like B-vitamins are readily taken up in microscopic amounts.
It is most beneficial during transplant, periods of stress, and heavy fruit and flower production, but is safe to use throughout growth and bloom as a general supplement to any feeding schedule.
Key Benefits
- 1% vitamin B1, the highest soluble concentration available to home growers
- 9% magnesium as an additional benefit
- Speeds recovery from drought, heat and salt stress
- Reduces transplant shock from weeks to days
- Works with any nutrient and feeding programme
How to Use
- Add a few drops directly to the nutrient solution during stress or transplant
- For soil-to-hydro transplants, soak roots in a lukewarm water bucket with a few drops added before moving the plant
- Safe to use at all stages of growth and bloom
Technical Specifications
- Active ingredients: 1% vitamin B1, 9% magnesium
- Format: soluble powder

FREE Express Delivery on orders over £60. We aim to post same day for next-working-day arrival — order by 3pm Mon–Fri. Delivery is 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.