Organic Valerian Root Extract, 1 fl oz

Organic Valerian Root Extract, 1 fl oz. Amazon listing B0001APXVK (model 751063311601) price $25.40. The Supplement Facts amount is a volume, not milligrams, so mg per $1 is not calculated. NIH DSLD 81440 (Gaia Organics, UPC 751063311601, 1 fl oz / 30 mL, entered 22 Dec 2017): serving 40 drops (1.33 mL), about 23 servings, amount 1.33 mL of organic valerian root extract, herb strength ratio 1:3, statement "333 mg/ml herb equivalency," other ingredients organic alcohol and water, certified organic by Oregon Tilth. The same panel is on iHerb 12913, Vitacost, and Village Green, and gaiaherbs.com/products/valerian-root-certified-organic lists the blend as organic valerian root and organic valerian root extract with organic alcohol USP (50-60%) and water. The Amazon description sentence "each 30 drops contain 333 mg crude herb equivalent" restates that 333 mg/mL concentration (30 drops is about 1 mL). It is not a Supplement Facts milligram serving. Multiplying 333 mg/mL by the 1.33 mL serving would convert the concentration into a per-serving milligram the amount column does not state, so that figure is not used.