Interaction databaseSupplement × SupplementReviewed May 2026

Ashwagandha and Shilajit, a synergy.

Shilajit and ashwagandha are frequently paired as complementary adaptogens, with shilajit supporting cellular energy and free testosterone while ashwagandha lowers cortisol and stress.

One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.

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What the row says.

Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.

At a glance

Substances
Ashwagandha and Shilajit
Pair type
Synergy
Evidence (highest tier)
Emerging
Source citations
2 sources
Stack Score effect
+2 to your Stack Score (per scored synergy row).
Scope
Supplement × Supplement
Last verified
May 30, 2026

Synergy · Emerging evidence

Synergy

What is happening. Shilajit and ashwagandha are frequently paired as complementary adaptogens, with shilajit supporting cellular energy and free testosterone while ashwagandha lowers cortisol and stress.

Mechanism. Shilajit supports ATP production and may lower sex hormone binding globulin to raise free testosterone, while ashwagandha modulates the HPA axis to reduce cortisol; the two act on different but complementary pathways.

Recommendation. Generally well tolerated together at standard doses. Evidence for the specific combination is limited, so judge effects individually and monitor for additive sedation or blood pressure changes.

Sources (2)
  1. Pingali U et al., Effect of standardized aqueous extract of Withania somnifera, Pharmacognosy Research, 2014
  2. Pandit S et al., Clinical evaluation of purified shilajit on testosterone levels in healthy volunteers, Andrologia, 2016

Stack Score

How this pair moves the number.

Effect on the composite score

If both Ashwagandha and Shilajit are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).

The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.

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