Fulvic Acid Explained: What a Lab Result Can and Cannot Show

Fulvic Acid Explained: What a Lab Result Can and Cannot Show

A practical guide to reading Shilajit fulvic-acid results, reports and labels

Explore: View Lab Testing · Read our in-depth Fulvic Acid article · Compare Capsules and Resin.

What is fulvic acid?

Fulvic acid is a group of naturally occurring organic compounds associated with humic substances. Shilajit is a complex natural material rather than a single-ingredient fulvic-acid product, and its profile can vary by source, preparation and finished formulation.

Shilajit has a long history of use in Ayurveda. That traditional context matters, while a laboratory composition result answers a different question: what was measured in the identified sample.

Why a percentage needs context

There is no recognised universal fulvic-acid percentage that alone proves a Shilajit product is genuine, superior or suitable for everyone. A high reported result is not automatically a red flag, and a lower number is not automatically proof of authenticity.

The laboratory method, the sample identity and the product label matter. ISO 19822 is a method standard for analysing humic and hydrophobic fulvic acids in specified fertiliser, soil-amendment and geological materials. It does not set a Shilajit authenticity range or a maximum percentage.

What the 5 Rivers Eurofins reports record

Eurofins analysed the identified submitted Gold+ Capsules and Gold+ Resin product samples. The reports record fulvic acid and the listed arsenic, cadmium, lead and mercury measurements for the identified batches.

View the original Eurofins reports and full result context. We use the method source printed on the certificates, EASI-CHE-SOP-361, rather than assuming an instrument type the reports do not state.

How to compare Shilajit responsibly

• Read the full ingredient list and labelled serving for the exact finished product.
• Look for an accessible report with the laboratory, sample description, date, method source and results.
• Separate a compositional result from claims about health outcomes.
• Compare format, preparation, delivery and returns as well as a headline percentage.

For a deeper explanation of high-fulvic claims, analytical methods and the source material behind these results, read Shilajit and Fulvic Acid: What’s the Connection?.

Choose the format that fits your routine

Further reading

• ISO 19822:2018, on analysis of humic and hydrophobic fulvic acids.
• International Humic Substances Society, on isolation of humic and fulvic acids.
• Keller et al. (2019), describing a standardised Shilajit preparation as ≥50.0% fulvic acid.