Our lab values: every batch tested and documented

Almost every Shilajit page says "lab tested". What those pages rarely carry is the numbers. This page is where we write them down: what was measured in our current batch, where the figures come from, when they were taken, and how you can match them against the jar in your own kitchen.

What we have tested

Every batch goes to an accredited food laboratory in Germany before it is sold. Three groups of parameters are examined:

• Heavy metals: lead, cadmium, mercury and arsenic. The EU sets binding maximum levels for the first three in food supplements.
• Microbiology: salmonella, E. coli, yeasts and moulds. This is the hygiene evidence for a product that is consumed uncooked.
• Resin characteristics: fulvic acid and dry matter. These describe the composition, not the safety.

That order is deliberate. The values that decide whether a product is safe to sell are the heavy metals and the microbiology. Fulvic acid is the number the market shouts about most and the one that is hardest to compare.

The values for the current batch HM-SH-25-BLY-1159

Analysis date: 01.09.2025. Maximum levels per Regulation (EU) 2023/915 for food supplements.

Element	Measured value	EU maximum level
Lead (Pb)	< 2 mg/kg	3.0 mg/kg
Cadmium (Cd)	< 0.5 mg/kg	1.0 mg/kg
Mercury (Hg)	< 0.01 mg/kg	0.10 mg/kg
Arsenic (As)	0.88 mg/kg	no general maximum for this product group

Microbiology of the same batch:

Parameter	Result
Salmonella	not detectable
E. coli	under 10 cfu/g
Yeasts and moulds	under 10 cfu/g

Resin characteristics:

Figure	Value	Note
Fulvic acid	69.8 % of dry weight	titrimetric determination, not covered by the accreditation
Dry matter	80.4 %	reference basis for the fulvic acid figure

All of it, including the batch number and the analysis date, is in the batch datasheet.

How to read these tables

Four terms are enough to place any lab value:

1. mg/kg means milligrams per kilogram of product. The reference is always the kilogram, never the daily portion of roughly 400 mg.
2. "Not detectable" means the method did not find the substance at all.
3. The less-than sign (<) marks a level below the limit of quantification of the method. The number behind it describes the limit of the method, not the actual content of the product.
4. cfu/g stands for colony forming units per gram, the usual unit in microbiology.

This is also why we will never write "free from heavy metals". A laboratory can establish that an element is not detectable; it can never establish that exactly zero of it is present. How the figures compare against the limits is set out in detail under Shilajit and heavy metals.

A batch datasheet and a laboratory report are two different documents

This is the point where we have to be precise, because it is often blurred.

The laboratory report is the laboratory's document. It belongs to the laboratory, and its terms of sale do not permit us to publish it or to name the laboratory in order to promote our product. Clauses of that kind are standard among accredited testing bodies.

The batch datasheet is our document. It reproduces the results of that report: the same measured values, the same batch number, the same analysis date, plus the method used for fulvic acid and the note on the scope of the accreditation. It does not replace the report, but it makes every single figure in it publicly readable.

We would rather say that plainly than promise "full lab reports" and then show a PDF we designed ourselves. Our guide on spotting real Shilajit covers how to assess evidence like this in general.

Matching your jar in three steps

1. Look at the label on your jar and note the batch number.
2. Open the batch datasheet and compare the number printed at the top.
3. If both match, every value on the sheet refers to exactly the resin in your hand. If they do not match, send us a short message and you will get the document for your batch.

That comparison is the entire purpose of a batch number. A lab value that cannot be assigned to a batch is a number about some material, not about yours.

Why every batch is measured again

Shilajit is a natural product. Collection area, rock and purification all affect the composition, and they do so from batch to batch. A single analysis used as evidence for years therefore says little about the goods being sold today.

We have each batch tested again before it goes on sale and publish a separate datasheet for it. When a new batch is introduced, the batch number, the analysis date and the measured values on this page change with it.

What these values do not tell you

Lab values evidence purity and composition, nothing more. They say nothing about what the product does in the body, and we draw no such conclusions from them. In particular, a high fulvic acid percentage is not a quality mark in itself: without the measurement method, two percentages cannot even be compared. Why that is the case, and why figures of 80 to 85 percent are so common in the market, is explained under fulvic acid in Shilajit.

More background on quality, buying and use is collected in the guide section. The tested resin itself is available as a 20 g jar in the shop.

Food supplements are not a substitute for a balanced and varied diet.