Most people take 250 to 500 mg of shilajit per day, and doses up to 2,000 mg daily are generally well tolerated in adults. The sweet spot in clinical research has been 500 mg daily, typically split into two doses of 250 mg. But the right amount for you depends on the form you’re using and what you’re hoping to get from it.
Doses Used in Clinical Trials
Human studies on shilajit have tested doses ranging from 200 to 2,000 mg per day. The most common regimen across trials is 500 mg daily, divided into two 250 mg doses. In one randomized, placebo-controlled trial looking at testosterone levels in men aged 45 to 55, participants took 250 mg twice a day for 90 consecutive days. That group saw significant increases in total testosterone, free testosterone, and DHEAS (a hormone precursor) compared to placebo.
These studies used purified, standardized extracts, not raw shilajit scraped from a rock. A widely studied version called PrimaVie, for instance, is standardized to contain at least 50% fulvic acid, the compound believed to drive most of shilajit’s biological activity. If you’re using a product with a lower concentration of fulvic acid, the effective dose could be quite different. Look for a product that lists fulvic acid content on the label so you have a meaningful basis for comparison.
How Form Affects Dosage
Shilajit comes in resin, powder, capsule, and tincture forms, and each delivers a different concentration per serving.
- Resin: The most traditional form. A pea-sized portion is roughly 250 to 500 mg, but this varies by product. Resin is typically the least processed, so its fulvic acid content depends entirely on the source and purification method.
- Capsules and powder: These are easier to dose precisely since milligrams are printed on the label. Most capsule products provide 250 or 500 mg per capsule. Powder can be measured with a small scale.
- Tinctures: Liquid extracts deliver much smaller amounts per serving, sometimes as low as 10 mg per dose. You’d need many servings to match the 250 to 500 mg range used in clinical research.
If you’re starting for the first time, beginning at the lower end (200 to 250 mg per day) and increasing after a week or two is a reasonable approach. This lets you gauge how your body responds before moving to a full 500 mg dose.
Upper Limit and Side Effects
Shilajit is well tolerated in most adults at doses up to 2,000 mg per day, according to Banner Health. That said, human research remains limited and most studies are small, so a firm upper safety limit hasn’t been established the way it has for common vitamins. The most frequently reported side effect in trials is headache, and even that appears uncommon.
There is no strong reason to take more than 500 mg daily for general health purposes. Higher doses haven’t been shown to produce proportionally better results, and you’d be moving into territory with less safety data behind it. The 2,000 mg figure represents a tolerated ceiling, not a target.
When and How to Take It
Shilajit dissolves best in warm liquid, but temperature matters. Keep your water or milk below 40°C (104°F). Boiling or very hot liquids can break down enzymes and reduce how much your body actually absorbs. Warm, not hot, is the goal.
For morning use, dissolving shilajit in warm water and drinking it on an empty stomach about 30 minutes before breakfast tends to produce the fastest uptake and is popular for energy and mental clarity. Adding a teaspoon of raw honey may help with absorption. For evening use, warm milk is a better pairing. The proteins in milk help stabilize blood sugar overnight, and the combination works well if you’re taking shilajit for recovery or sleep support. Aim for 30 to 45 minutes before bed.
If you’re splitting your dose into two servings of 250 mg, one in the morning with water and one in the evening with milk covers both timing strategies. This mirrors the twice-daily protocol used in testosterone research and keeps blood levels more consistent than a single large dose.
What to Look for in a Product
The composition of shilajit varies significantly based on where it’s harvested and how it’s processed. A product from one region can have a very different chemical profile than one from another. The most reliable way to compare products is by their fulvic acid content, which should be listed on the label or certificate of analysis. Clinical-grade extracts are typically standardized to 50% or higher fulvic acid. Products that don’t disclose this information make it impossible to know whether you’re getting an effective dose, regardless of how many milligrams are in the capsule.
Raw, unpurified shilajit can contain heavy metals, fungal contamination, or other impurities. Purified extracts that have been tested by third-party labs are a safer choice, especially since you’ll be taking it daily over weeks or months to see results. The testosterone study, for reference, ran for a full 90 days before measuring outcomes.