Cross-referencing clinical data
A pairing appears on this page only when a trial gave both ingredients together and measured the result. Heal-All has none that clears that bar.
Stitching two separate single-ingredient studies into a pairing is the one thing this engine will not do. When a study of the combination itself holds up at source, it lands here with its citation.
No invented synergy. Where actives were studied on their own rather than together, the record shows each on its own evidence, never a combined effect no trial measured.
Research strength. Research strength says how much work stands behind the combination. It is never a product score.
Independent record. Every finding is cited to a named trial, dated, and never written by the brand.
20 pairings are live across the library today. Checked 20 July 2026.
No study gave these as a pair, so they are not in the card above. But the reason they belong together is settled biochemistry, not a guess, so it is worth knowing.
Rosmarinic acid is the dominant caffeic acid ester in Prunella vulgaris and also the compound the herb rosemary is named for. Combining them in a formula raises the total rosmarinic acid input rather than adding a distinct one. Anyone specifying a phenolic dose should count both sources. This is compositional overlap.
Phenolic compounds donate a hydrogen atom and become phenoxyl radicals, and ascorbate can reduce them back to the parent phenol. The chemistry is well characterised in solution and in food systems. Whether the same recycling happens at meaningful rates in tissue after oral intake is far less certain. Read this as chemistry rather than a clinical claim.
Prunella spike, known as xia ku cao, appears alongside licorice in classical formula construction. The pairing is documented by tradition and formulary practice rather than by controlled comparison. Licorice also carries its own blood pressure and potassium considerations at sustained doses. Read the pairing as traditional convention.
Chamomile brings apigenin glycosides and Prunella brings rosmarinic acid and triterpenes, and both extract well into hot water. The blend is a beverage formulation convention. There is no clinical work on the combination. The basis is preparation compatibility plus traditional use.
Catechins and the tannin fraction of Prunella both complex non-haem iron in the intestinal lumen. Stacking two tannin-rich extracts raises that binding load. For someone working on low iron status this is worth spacing apart from an iron dose. The interaction is on mineral absorption, not on either herb's own activity.
Polyphenol-iron complexes are poorly soluble and pass through the intestine unabsorbed. This is the same well-documented mechanism that makes tea with a meal lower iron absorption. Separating a polyphenol-rich herbal infusion from an iron dose by two hours avoids most of it. The endpoint here is absorption.
Elderberry and Prunella spike appear together in seasonal syrups and teas across different herbal traditions. The pairing is about use occasion rather than a described mechanism. No combination data exists. Read it as formulation convention.
Nothing specific on file for Heal-All. Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.