From the databaseWhat the row says.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
Scope
Supplement × Supplement
Last verified
June 4, 2026
SynergyEmerging evidence
What is happening. Both are used in cardiovascular support stacks, especially for cardiac energy and symptoms.
Mechanism. Complementary vascular and mitochondrial support mechanisms.
Recommendation. Reasonable only as adjunctive support; do not change heart medications without clinician input.
Stack Score
How it moves the number.
Effect on the composite score
If both Coenzyme Q10 and Hawthorn (Crataegus) 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 at /methodology/stack-score.
SourcesSources, by evidence tier.
Every claim on this page is cited. PMIDs link straight to PubMed.
Reference material
1- 1Pittler MH et al. Hawthorn extract for chronic heart failure. Cochrane. 2008.Needs sourceNo link