A pairing appears on this page only when a trial gave both ingredients together and measured the result. Dichroa 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.
Febrifugine and its derivative halofuginone block the proline binding site of prolyl-tRNA synthetase, which is what triggers the amino acid starvation response downstream. Adding proline competes for that same site, and the same is true in the other direction. This is the cleanest mechanistic interaction the plant has and it is well characterised at the enzyme level. It also means proline intake is a variable that changes what the alkaloid does.
Chang shan is notoriously emetic, and classical practice pairs it with ginger or processes it with ginger juice for exactly that reason. The pairing is a preparation convention with a long record of use rather than a measured pharmacological interaction. It does not remove the underlying toxicity of the alkaloids. Read it as historical practice, not as a way of making the herb tolerable.
Licorice appears in most classical formulas that contain harsh alkaloid-bearing herbs, where its stated role is to moderate the formula. That is a compositional convention from the tradition, not a demonstrated pharmacokinetic effect. Licorice also carries its own mineralocorticoid-like activity at sustained intakes. The combination is worth naming because it is common, not because it is validated.
Ascorbate is a routine antioxidant in liquid botanical extracts, where it slows oxidative degradation of sensitive constituents during storage. That is a shelf-life function, not a biological interaction with the alkaloids. It says nothing about what happens after ingestion. The pairing is formulation practice.
Nothing specific on file for Dichroa. Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.These are the studies our verdict leans on, chosen from the 2 we read for Dichroa. The full linked list is below.
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.