Mullein Leaf Extract Powder

Mullein leaf extract starts from the leaves of Verbascum thapsus, the woolly rosette leaves of the great mullein, with the flower spike and root excluded. Water extraction concentrates the soluble leaf fraction, and the liquor is dried into a green 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 raw leaf is densely felted with fine hairs. A mullein flower extract would be a separate ingredient.

Verbascum thapsus Identity & Plant Part

The botanical entity is Verbascum thapsus L., great mullein, a biennial of the Scrophulariaceae that forms a rosette of large, felted gray-green leaves in its first year and a tall yellow flower spike in its second. The part used is the leaf. The flowers and the root are not part of this mullein leaf extract.

Two points matter to buyers. Several Verbascum species are collected as mullein, and flowers are traded separately from leaves, so a specification should quote the Latin name and the leaf. The leaf holds mucilage, iridoid glycosides, phenylethanoid glycosides such as verbascoside and flavonoids, which are named here only as families.

What 10:1 Means for Mullein Leaf

A 10:1 ratio on a mullein leaf extract describes concentration against the starting leaf and does not report mucilage, iridoid or phenylethanoid content. The mucilage is water-soluble, so it travels into the extract and gives the dissolved powder a slightly viscous feel. A buyer who needs a marker-based level has to look at a standardized grade, which is not listed for this herb. A buyer who names the species, the leaf and the ratio can use this mullein leaf extract as listed. The ratio extract is the single form of the leaf that is offered.

Typical Specifications

Specification ItemProduct Information
Latin NameVerbascum thapsus
Plant PartLeaf & Herb
ProcessingWater Extraction
Common NameMullein Leaf
Ingredient TypeRatio Extract
Extract Ratio10:1
AppearanceGreen powder
Solubility / DispersibilityWater Dispersible
Quality Parameters
Moisture (LOD)≤5.0%
Total Ash≤5.0%
Particle Size80 mesh
Heavy MetalsLead ≤2 ppm · Arsenic ≤1 ppm · Cadmium ≤1 ppm · Mercury ≤0.1 ppm
MicrobiologyTPC ≤1,000 cfu/g · Yeast & Mold ≤100 cfu/g · E. coli Negative · Salmonella Negative/25 g
Shelf Life24 months in unopened original packaging, cool and dry storage

Application Areas

Capsule Fills for Leaf Extracts

Mullein leaf extract fills into capsules as a green powder that disperses in water. Mucilage makes the particles slightly cohesive, so a flow aid helps and the filling room is kept dry. Disintegration testing on the finished capsule confirms the shell opens as expected.

Tea-Style Instant Mixes

In instant tea-style blends mullein leaf extract gives a pale green-brown, slightly viscous cup with a mild, hay-like note. Honey and lemon flavors suit it. A carrier in the dry blend keeps each sachet at the same dose.

Chewable Tablets

Chewable tablets take mullein leaf extract on a sorbitol base, with mint or citrus flavor to cover the mild bitterness. The mucilage binds the granule well, which helps hardness but can slow disintegration, so release is tested on the finished tablet.

Powder Stick Drinks

Drink sticks pair the extract with fruit flavors in barrier laminate. The mucilage thickens a drink a little, so a short stir is needed for full dispersion. Keep the premix dry to avoid lumps. Stir for a few seconds so the mucilage hydrates fully.

Gummy Premix Blends

Gummies carry the extract late in the cooked base, where its mucilage adds a little body to the gel. Green apple and pear flavors fit the tint, and viscosity is checked in trials before the gummy mass is deposited.

Formulation Notes

Mullein leaf extract is a green powder with a faint, hay-like, lightly herbal aroma and a mildly bitter taste. In water it forms a hazy green-brown liquid with a slight viscosity from the mucilage, and fine plant material settles slowly. The aroma stays faint when the powder is wetted.

The mucilage and sugars make the powder hygroscopic. Weigh the mullein leaf extract in a dry room, reseal the liner after each draw and keep it away from heat and light. Moisture pickup shows first as clumping at the surface, and leaf pigments turn from green toward brown as a pack ages.

Mullein leaf extract wets slowly because the mucilage forms a thin gel on the surface of each particle. Dry-blend it with sugar or a carrier before adding water, and stir during addition to prevent lumps. In capsules, a flow aid and screening keep the cohesive powder moving through the filling machine.

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 ItemGeneral Information
SampleAvailable upon request for formulation, testing, and supplier evaluation
Order Quantities100 g · 1 kg · 5 kg · 25 kg · 100 kg · 500 kg · Bulk
Sample Lead TimeTypically 5–7 days after sample confirmation
Production Lead TimeTypically 15–30 days after order and specification confirmation
PackagingSuitable protective inner packaging with bags, cartons, drums, or other appropriate outer packaging
StorageStore 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.
DocumentationCOA · 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.

Request Ingredient Specifications & Quote

Share your target specification, application, quantity, and documentation needs. We’ll help confirm suitable options, samples, and commercial supply details.