Cross-referencing clinical data
A pairing appears on this page only when a trial gave both ingredients together and measured the result. Albizia julibrissin 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.
Albizia bark and flower appear alongside dang gui in classical formulas addressed to emotional unease and disturbed sleep. The pairing is documented in the herbal literature rather than in controlled trials. Read it as formulation tradition, not as demonstrated pharmacology.
Licorice is a near-universal harmonising herb in the same formula tradition that uses albizia. Both carry triterpenoid saponins, so the combined saponin load in a decoction rises. Licorice carries its own dose limit through glycyrrhizin and mineralocorticoid effects, which sets the ceiling for the pair rather than albizia doing so.
Both appear in the same category of calming formulas in classical texts. The rationale is traditional rather than mechanistic. No controlled human data supports the combination as such.
Both are used for sleep onset in their respective traditions, so a person stacking calming botanicals may end up with more sedation than intended. The additive effect is a caution to flag rather than a benefit to claim. Anyone driving or operating machinery should assume the combination is stronger than either alone.
Stacking calming botanicals compounds drowsiness even when neither has strong individual data. Flagging this is more useful than claiming a benefit. Start with one and add the second only after the response to the first is known.
Melatonin shifts sleep timing while calming botanicals lower arousal, and the two effects compound at the point of sleep onset. Next-morning grogginess is the usual complaint when they are stacked. This is a caution, not a recommended pairing.
Lemon balm carries the better human data of the two for evening calm, and albizia is often added on traditional grounds. Any effect from the blend cannot be attributed to albizia. The additive drowsiness is the practical point.
L-theanine acts through amino acid chemistry with reasonably characterised effects on cortical arousal, while albizia is used on traditional grounds. Combining them puts a characterised ingredient next to an uncharacterised one. If the blend works, the theanine is the part with a mechanism behind it.
Triterpenoid saponins lower surface tension and can improve the dispersion of poorly water-soluble compounds in the gut lumen. Albizia saponins have this physical property in common with quillaja and other saponin sources. Whether the effect reaches a meaningful magnitude at herbal doses has not been shown in people.
Albizia bark carries condensed tannins, and tannins bind non-heme iron in the gut lumen into a poorly absorbed complex. This is the same chemistry that lowers iron uptake from tea. Separating an iron dose from a tannin-rich bark decoction by a couple of hours avoids it.
Nothing specific on file for Albizia julibrissin. Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.2 sources behind our Albizia julibrissin verdict: peer-reviewed studies and registered clinical trials. Every one links straight to PubMed, the journal, or ClinicalTrials.gov. Read them yourself.
Evidence surfaced via Semantic Scholar (Allen Institute for AI) and ClinicalTrials.gov. Ranked by study type and citation weight, not cherry-picked.
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.