Guide
Valerian root tea: how it's made and how strong it is
Valerian root tea is a hot-water infusion of the dried root, typically 0.3-3 g per cup; almost every clinical trial on valerian instead used extract or whole-root capsules, so tea itself hasn't been tested as its own variable.
Valerian root tea is a hot-water infusion made from the dried root of Valeriana officinalis, usually steeped for 10 to 15 minutes. European regulators list a single dose of 0.3-3 g of dried root as tea, taken up to three times a day. Clinical trials on valerian for sleep and anxiety mostly used extract or whole-root capsules, not brewed tea specifically.
How it's made
Loose dried root or a tea bag is steeped in near-boiling water, usually for 10 to 15 minutes — longer than a black or green tea, since valerian's compounds need more time and heat to release. The European Medicines Agency's herbal monograph lists a single dose of 0.3-3 g of dried valerian root prepared as an infusion, taken up to three times a day, or once in the evening 30-60 minutes before bed. That's a European traditional-use registration based on long-standing use, not a clinical claim about effectiveness — see valerian root benefits: what the research does and doesn't show for what trials actually found.
How strong is tea, compared with what's been studied
Almost every clinical trial on valerian used extract or whole-root capsules, not brewed tea. A 2006 meta-analysis pooling 16 trials found doses ranging from 225 mg to 1,215 mg a day (PMID 17145239), and a 2020 systematic review of 60 studies most commonly saw 300-900 mg a day (PMID 33086877). A cup of tea made from 1-3 g of dried root sits inside that general range in terms of raw plant material, but steeping isn't the same as a standardized extract capsule — no study has measured how much valerenic acid or other compounds actually transfer into a cup of tea at a given steep time and temperature, so there's no tested equivalence between a cup of tea and a specific trial dose. See how much valerian root should you take a day? for the dosage research in full.
Taste and smell
Valerian tea tastes roughly the way it smells: earthy, musty, and often described as sweaty or like aged cheese. That comes from isovaleric acid and related compounds that form as the root dries (PMID 10411208) — not a sign the tea has gone bad. Many people who dislike the taste choose capsules instead, or drink it blended with mint or chamomile to mask it. No trial has tested a valerian-chamomile blend specifically, so any difference in effect from blending, as opposed to taste, isn't established.
Is it safe to drink daily?
Valerian is Generally Recognized As Safe (GRAS) for use in food by the FDA, and a national reference database on medications describes it as generally well tolerated, with dizziness, hangover, or headache reported occasionally (PMID 30000874). A 2007 review of 37 studies concluded valerian is a safe herb associated with only rare adverse events, even though it found no consistent evidence that it works better than placebo (PMID 17517355). None of that safety research isolated tea as its own preparation, and none of it applies to pregnancy, breastfeeding, or children — see who should not take valerian root? and is valerian root safe to take every day? for what's specifically unknown there.
Where quality varies
A 2004 lab analysis of 14 commercial valerian products found real variation between what was printed on the label and what the product actually contained (PMID 15367385). Nothing about that study was specific to tea, but it's a reason to expect the same kind of inconsistency across tea brands — there's no standardization requirement for how much valerenic acid a tea bag has to contain.
Questions people ask
How much valerian root should I use for tea?
There's no dose specifically tested for tea. The European Medicines Agency's traditional-use monograph lists 0.3-3 g of dried root per cup; most commercial tea bags fall within that range, though bag contents vary by brand and aren't independently standardized.
How long should I steep valerian root tea?
Most guidance calls for 10-15 minutes in near-boiling water, longer than a typical black or green tea. No clinical trial tested steep time as a variable.
Where can I buy valerian root tea?
It's sold as loose dried root or in tea bags, often blended with chamomile or other calming herbs, through health food retailers and online sellers. This page doesn't recommend a specific brand.
Is valerian root tea safe?
The safety data on valerian, discussed above, comes mostly from capsule and extract trials, not tea specifically, but valerian root itself is GRAS for food use. It hasn't been studied in pregnancy, breastfeeding, or children — see who should not take valerian root? before using it in those situations.
Related reading: valerian root benefits: what the research does and doesn't show, how much valerian root should you take a day?, who should not take valerian root?, and is valerian root safe to take every day?
Sources
- The scientific basis for the reputed activity of Valerian A pharmacology review describes laboratory evidence that valerenic acid, one of valerian's compounds, slows the breakdown of GABA, a proposed mechanism for its traditional sedative reputation — laboratory-level evidence, not proof of effect in people.
- Valerian for sleep: a systematic review and meta-analysis A 2006 meta-analysis of 16 trials found a modest benefit for valerian on a simple yes/no sleep-quality measure, but flagged publication bias, wide dose variation (225-1,215 mg/day), and no significant difference in side effects versus placebo.
- Valerian Root in Treating Sleep Problems and Associated Disorders-A Systematic Review and Meta-Analysis A 2020 systematic review of 60 studies found a small, not-statistically-significant pooled effect of valerian on sleep quality overall, a higher (but still uncertain) effect for whole root versus extract, and high heterogeneity in its anxiety meta-analysis; individual trial results ranged from no effect to modest subjective improvement.
- Valerian A national reference database on medications describes valerian as generally well tolerated, with occasional dizziness, hangover, or headache.
- A systematic review of valerian as a sleep aid: safe but not effective A 2007 review titled 'safe but not effective' found valerian's most rigorous, recent trials showed no significant sleep benefit over placebo, while confirming a generally safe profile with rare adverse events.
- In vitro activity of commercial valerian root extracts against human cytochrome P450 3A4 A 2004 lab (in vitro) study found real variation between labeled and measured valerenic acid content across 14 commercial valerian products.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.