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If you’re buying fulvic, I’d stick with reputable names like Black Earth or BioAg Ful-Power. Both are consistent, clean, and have third-party tests showing the actual fulvic %. A lot of products are blends with sugar, molasses, or other carbon sources, so the solution will be dark, that’s fine, just make sure you know exactly what’s in there and that the fulvic % is tested, not just “humic substances” on the label. Look for a clean source like quality leonardite and a lab report showing low salts and heavy metals. Cheap products are often just watered-down humic acid with fancy marketing, so if they can’t hand you a real assay, I’d pass.
On the label or in product specs, I’d look for:
1. Actual fulvic acid % Be careful, some labels just say “humic substances” without telling you how much is fulvic vs humic. Fulvic is the smaller molecule that’s plant available.
2. Source material Leonardite, peat, or compost extracts. Leonardite from clean deposits tends to be most consistent.
3. pH True fulvic acids are soluble over a broad pH range, but some products are just alkali extracted humics that drop out in acidic solutions.
4. Clarity In liquid form, a good fulvic product is usually clear to amber and doesn’t settle out much.
5. Independent analysis If they can’t give you a third-party lab test for fulvic %, humic %, ash, and heavy metals, that’s a red flag.
Brands/companies with frequent red flags (U.S. market):
Certain HuminTech dealers Quality can be fine at the source, but some dealers inflate fulvic % using non-standard test methods, leading to misleading labels.
Various white-label imports from China/India – Sold under dozens of names (often “XYZ Ag Solutions Fulvic 12%” or similar). These are often cheap leonardite extracts cut with molasses or lignosulfonates, with no 3rd-party assays.
Products sold heavily at farm shows without spec sheets – Common in the “miracle in a jug” category. If the salesman won’t show independent lab numbers, be skeptical.
Product red flags (regardless of brand):
1. No third-party assay If they can’t provide a lab test from an independent facility showing actual fulvic % (AAPFCO or IHSS method), humic %, ash, and heavy metals, walk away.
2. Vague labeling Says only “humic substances” without specifying humic vs fulvic content.
3. Suspiciously high fulvic % claims Over 15% in a liquid usually means they’re using a non-standard test or adding things that aren’t really fulvic.
4. Overly dark with strong molasses smell Often just sugar/molasses blends with little actual fulvic.
5. Ultra-cheap price per gallon High-quality fulvic costs money to extract and purify. If it’s dramatically cheaper than reputable brands, there’s a reason.
6. Unrealistic agronomic promises “Doubles your yield” or “Replaces all fertilizer” are big red flags.
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Best fulvic acid for the buck?
