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Holy basil

Holy basil suppliers and sourcing guide

Holy basil is Ocimum tenuiflorum (syn. Ocimum sanctum), a basil grown widely in India, where it is called tulsi. The ingredient is the dried leaf or aerial parts, sold cut for tea, milled to powder, or as water or hydroalcoholic extracts. Extracts are standardized to markers such as ursolic acid, eugenol or total polyphenols, depending on the supplier.

Also known as
Ocimum tenuiflorum · Ocimum sanctum · tulsi · sacred basil
Facts checked
November 2026

Forms and grades of holy basil

Suppliers sell different products under the same name. Specify the one you need.

  • Cut leaf (tea cut)

    Dried, cut leaf and herb for tea blends, sometimes sold by variety (Rama, Krishna).

  • Leaf powder

    Dried, milled leaf for capsules and powders; not standardized.

  • Standardized extract

    Dry extract sold on ursolic acid, eugenol or polyphenols, by the method the supplier names.

  • Organic

    Leaf or extract from certified organic farms, common for tea-grade material.

What to check on the COA

Compare each result with your own specification when the lot arrives.

Identity (HPTLC)
Confirms Ocimum tenuiflorum and separates it from sweet basil and other Ocimum species.
Marker assay
Ursolic acid by HPLC, eugenol by GC or HPLC, or total polyphenols by UV, matching the spec.
Heavy metals
Lead, arsenic, cadmium and mercury by ICP-MS.
Microbiology
Total plate count, yeast and mold, E. coli and Salmonella; leaf material may be steam treated.
Pesticide residues
Multi-residue screen, required for organic claims and common for leaf crops.
Moisture and foreign matter
Loss on drying, and stems and foreign matter for cut leaf.

Storage, lots and expiry

Storage and shelf life

Keep leaf and extract sealed, dry and away from light and heat, which drive off the aromatic oil. Store cut leaf apart from strongly scented materials. Shelf life or retest date comes from the supplier.

Lots and expiry dates

Aroma, oil content and markers vary with variety, harvest and drying. Record variety if stated, plant part and supplier lot, and check each COA.

Regulatory status

Facts from regulators and standards bodies, each linked to its source.

This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.

Holy basil suppliers

Manufacturers and distributors whose own websites say they sell it.

  • Botanic Healthcare

    Manufacturer · Hyderabad, India

    Botanic Healthcare is a Hyderabad, India, maker of standardized and organic herbal extracts, branded botanical ingredients and liposomal ingredient grades for supplement and food companies.

    • FSSC 22000
    • Certified organic
    • Non-GMO
    • BRCGS
    • ISO 9001
    • ISO 22000
    • Kosher

Suppliers are in alphabetical order and none pays to appear. Each claim is checked against the supplier’s own website on the date shown. Ask for the specification sheet and a recent COA before you order, and confirm details with the supplier.

Frequently asked questions

What forms of holy basil can brands buy?

Common forms include cut leaf (tea cut), leaf powder, standardized extract and organic. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for holy basil include?

Expect identity (HPTLC), marker assay, heavy metals, microbiology, pesticide residues and moisture and foreign matter, each with its method, specification and result for that lot.

How should holy basil be stored?

Keep leaf and extract sealed, dry and away from light and heat, which drive off the aromatic oil. Store cut leaf apart from strongly scented materials. Shelf life or retest date comes from the supplier.

What is the regulatory status of holy basil?

Health Canada's natural health product monograph for holy basil (leaf) lists the dried leaf of Ocimum tenuiflorum as the source material. The EU Novel Food status Catalogue (entry POL-NF-00543) covers the seeds and aerial parts of Ocimum tenuiflorum, listing the aerial parts as not novel in food and the seeds as a novel food not yet authorised.

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