Is Shilajit Safe? Heavy Metals and Lab Testing Explained
Shilajit comes out of rock, so the question every buyer should ask is what else came with it. A lab report answers that. Here is how to read one.
Last updated November 13, 2026
Why this matters for shilajit in particular
Shilajit forms in mineral-rich rock. Raw, unprocessed material can carry things you do not want, including heavy metals such as lead, arsenic, mercury and cadmium. That is why shilajit for supplements is purified, and why a finished product should be tested by a lab that is independent of the brand.
What a real test looks like
- It names the lab, and the lab is a third party, not the manufacturer.
- It has a report or certificate number and a date.
- It names the method. For metals this is usually ICP-MS, a technique that measures elements at very low concentrations.
- It lists each metal with its own result, not just the word “passed”.
- It says what was tested. A test of the finished product tells you more than a test of a raw ingredient.
How to read the numbers
Results are usually given in mg/kg, which is the same as parts per million. A result written with a “<” sign, such as <0.05 mg/kg, means the lab did not find the metal at or above that level; the number is the smallest amount the method reports.
What counts as acceptable depends on the standard applied and on how much of the product you take in a day, so a report should be read against the limits the lab itself states.
The report for Alloza
A sealed pouch of Alloza Shilajit Gummies was tested by Eurofins, an independent laboratory, by ICP-MS, USP <232>/<233>. Certificate AR-25-R2-023234-02, dated November 27, 2025. The results: lead <0.05 mg/kg, arsenic <0.01 mg/kg, mercury <0.01 mg/kg, cadmium <0.01 mg/kg, chromium <0.2 mg/kg. All were below the lab’s limits.
You do not have to take our word for it: the report itself is shown in the lab section of the home page.
Red flags when you shop
- “Lab tested” on the label with no report you can see.
- A report with no lab name, number or date.
- A test of the raw material only, with nothing on the finished product.
- A seller who will not send the report when asked.
Other safety basics
Stay with the serving on the label. Keep supplements away from children. Talk to your healthcare provider before taking any supplement if you are pregnant, nursing, taking medication or have a medical condition. A clean metals report says the product is free of those contaminants at the reported levels; it is not a statement that a supplement is right for you.
Keep reading
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This guide is general information, not medical advice. Studies cited here looked at individual ingredients, often in different forms and doses, and are not claims about this product.