Psyllium seed is the whole, small, boat-shaped grain of Plantago ovata. Psyllium husk is the thin seed coat milled off that grain, and husk powder is the same husk ground into a finer particle size.
The husk carries most of the soluble fibre (mucilage) that buyers want. That is why husk and husk powder are the main traded products, while whole seed is a smaller trade.
Psyllium seed
Whole seed is what farmers sell at the APMC market. Processors clean it, often colour sort it, and either mill it into husk or sell it whole. Some buyers import cleaned seed for their own milling, for traditional uses, or for markets that want whole seed.
Seed specs focus on physical purity: foreign seeds, stones, dust, broken and immature seeds, plus moisture. Whole seed is also graded by cleaning method. The difference is covered in sortex and non-sortex psyllium seed.
Psyllium husk
Husk is produced by milling the cleaned seed to separate the seed coat, then sieving and air classifying the result. The husk looks like thin, pale flakes. It is sold by purity grade, commonly traded as 85%, 95%, 98% and 99% purity, where the remainder is mostly light extraneous matter and kernel particles.
Husk is used as a fibre supplement, in some foods, and in pharmaceutical products. Its key quality markers are purity, swell volume, light extraneous matter, ash and microbiology.
Psyllium husk powder
Husk powder is husk ground and sifted to a stated mesh size, such as 40, 60, 80 or 100 mesh. Finer powder mixes and disperses more quickly, which suits drink mixes, capsules, tablets and bakery. The trade-offs are explained in what mesh sizes are available for psyllium husk powder.
Grinding does not improve purity. Powder made from 85% husk is still 85% material, and lower grades are harder to judge by eye once ground. Always specify the purity grade of the husk used, not just the mesh.
Side by side
Start from your finished product. A fibre supplement in capsules needs fine powder of a high purity grade. A loose husk product for retail needs husk with good flake appearance. A feed formulator may need a lower grade or a by-product. Write the form, grade, mesh and test limits into your specification. The main differences are these.
- Form: seed is whole grain, husk is flakes, powder is fine particles.
- Main buyers: seed goes to millers and traditional markets, husk and powder to supplement, food, pharma and feed makers.
- Main specs: seed is judged on cleanliness and moisture, husk and powder on purity, swell volume, ash and microbiology.
- Value: husk is the valuable fraction, because it is only part of the seed's weight.
- By-products: milling also yields the inner kernel and lower fractions such as khakha powder, mostly sold for animal feed.
Where we come in
We match you with processors who mill their own husk and grind their own powder, rather than traders reselling it. We test approval and pre-shipment samples at an NABL-accredited lab against your spec. Ask for a free sourcing review to begin.