Description
Leonardite-derived humic acid at a genuinely high concentration
RAW Humic Acid is a highly concentrated, water-soluble biostimulant derived from leonardite, carrying 59% humic acid. Rather than acting as a fertiliser in its own right, it enhances how efficiently the nutrients already in the feed are used — improving their availability, buffering the growing medium's pH, and supporting root and microbial activity at the same time.
Its larger molecular structure compared with fulvic acid means it anchors well in a growing medium, which is why it is typically paired with RAW Full Up (fulvic acid) for the mobility the fulvic side adds in hydro systems.
Key Benefits
- 59% humic acid, derived from leonardite
- Improves nutrient availability from the existing feed
- Buffers pH in the growing medium
- Supports root and microbial activity
- Pairs with RAW Full Up for a combined humic/fulvic programme
How to Use
- Add to the reservoir or growing medium alongside the base feed
- Use throughout the cycle for ongoing root-zone support
Technical Specifications
- Guaranteed analysis: 59% humic acid
- Source: leonardite
- Format: soluble powder
