Rabdosia Rubescens Extract Powder

Rabdosia rubescens extract starts from the aerial parts of Isodon rubescens, the herb listed in the trade as Rabdosia rubescens and in China as dong ling cao, with the root excluded. Water extraction concentrates the soluble herb fraction, and the liquor is dried into a light brown powder that disperses in water.

The extract is supplied at a 10:1 ratio with no marker percentage and is milled to 80 mesh. The diterpenoid compounds that make the herb known are poorly water-soluble, so this is a polar herb profile and not an oridonin-defined grade.

SKU: BOT-BEX-0533 Category: Botanical Extracts Tags: Gummies & Chews, Leaf & Herb, Plant Extracts, Rabdosia Rubescens, Water Dispersible, Water Extracted

Rabdosia rubescens Identity & Plant Part

The botanical entity is Isodon rubescens (Hemsl.) H.Hara of the Lamiaceae, a small shrubby mint-family herb of northern China with square stems and toothed leaves. The older genus name Rabdosia is still widely used in the trade, and Rabdosia rubescens is the same species under that older name. The part used is the aerial part. The root is not part of this Rabdosia rubescens extract.

The genus Isodon includes many similar species, and several are sold as herbs in East Asia, so a specification should quote the Latin binomial. The herb holds ent-kaurane diterpenoids such as oridonin, together with flavonoids and phenolic acids, named here only as families. Diterpenoids dissolve poorly in water.

What 10:1 Means for Rabdosia rubescens

A 10:1 ratio on a Rabdosia rubescens extract describes concentration against the starting herb and reports no diterpenoid figure. The diterpenoids that appear in research reagent catalogs are recovered mainly by organic solvents, so a water process yields a different, more polar profile. A buyer who needs a declared marker must look at a defined grade, which is not listed for this herb. A specification names Isodon rubescens, the aerial part and the 10:1 ratio. Because Isodon species are numerous, a specification that states Isodon rubescens, the aerial part and the ratio gives the most dependable identification of the Rabdosia rubescens extract.

Typical Specifications

Specification Item	Product Information
Latin Name	Isodon rubescens
Plant Part	Leaf & Herb
Processing	Water Extraction
Common Name	Dong Ling Cao Herb
Ingredient Type	Ratio Extract
Extract Ratio	10:1
Appearance	Light brown powder
Solubility / Dispersibility	Water Dispersible
Quality Parameters
Moisture (LOD)	≤5.0%
Total Ash	≤5.0%
Particle Size	80 mesh
Heavy Metals	Lead ≤2 ppm · Arsenic ≤1 ppm · Cadmium ≤1 ppm · Mercury ≤0.1 ppm
Microbiology	TPC ≤1,000 cfu/g · Yeast & Mold ≤100 cfu/g · E. coli Negative · Salmonella Negative/25 g
Shelf Life	24 months in unopened original packaging, cool and dry storage

Application Areas

Capsules for Polar Herb Extracts

Rabdosia rubescens extract fills into capsules as a light brown powder. Fine herb particles pack unevenly, so a flow aid and a dry filling room keep fill weights steady, and tapped density is measured before a fill weight is chosen.

Instant Tea-Style Blends

Instant tea-style powders use the herb extract as a hazy tan base with a bitter, grassy note. Honey, lemon and mint flavors cover the edge, and a carrier in the dry blend keeps each sachet at the same dose.

Tablets with Bitter Herbs

Tablets carry the extract with microcrystalline cellulose and a disintegrant, and a film coat covers the bitterness and the brown tint. Hardness is rechecked after humidity exposure, because a polar herb extract absorbs water. A short storage trial checks tablet color and bitterness after exposure to warm, humid air.

Powder Sticks with Strong Flavors

Sticks pair the extract with citrus or spiced flavors in barrier laminate. The bitterness limits the dose, and a dry premix prevents clumping at the seal in humid storage. Fruit acids brighten the flavor, and the powder is premixed with the acid to keep the dose even.

Masked Gummies

Cooked gummies take Rabdosia rubescens extract late in the base, with cherry or cola flavors that cover the bitter note and brown tint. A short storage trial shows whether the bitterness returns as the product ages.

Formulation Notes

Rabdosia rubescens extract is a light brown powder with a faint, grassy, medicinal aroma and a distinctly bitter taste. In water it forms a hazy tan liquid with fine plant fragments that settle slowly. Bitterness is the main sensory limit on dose.

The herb extract takes up moisture and clumps when left open. Weigh the powder in a dry area, close the liner after each draw and keep it away from heat and light. Surface clumping and darkening are the first signs of moisture pickup.

Rabdosia rubescens extract is mixed with a carrier before it joins the batch, and the premix is passed through a coarse screen. For drinks, mix the extract into sugar or a carrier before it meets cold water. Clean contact surfaces between products, since bitter residue carries over to the next batch.

Packaging & Commercial Supply

Essencefield supports product evaluation, formulation trials, commercial orders, and ongoing ingredient supply. Packaging, storage, and shipping arrangements are determined by product characteristics, order quantity, stability requirements, and destination-market needs.

Supply Item	General Information
Sample	Available upon request for formulation, testing, and supplier evaluation
Order Quantities	100 g · 1 kg · 5 kg · 25 kg · 100 kg · 500 kg · Bulk
Sample Lead Time	Typically 5–7 days after sample confirmation
Production Lead Time	Typically 15–30 days after order and specification confirmation
Packaging	Suitable protective inner packaging with bags, cartons, drums, or other appropriate outer packaging
Storage	Store in tightly sealed, suitable protective packaging in a cool, dry environment. Protect from moisture, heat, and direct sunlight. Specific storage conditions follow the approved product specification.
Documentation	COA · Product Specification · TDS · SDS · Applicable declarations (as applicable)

Final order quantities, lead times, packaging, documentation, and shipping arrangements are confirmed according to the selected product and commercial requirements.