Importing Herbal and Ayurvedic Extracts from India: Specs and GMP

India supplies more standardised botanical extract than anywhere else, across a range that runs from commodity turmeric extract to specialised actives for the nutraceutical and pharmaceutical industries. It is also a category where the certificate on the drum and the material inside it can diverge more than in almost any other trade.

The reason is structural. Potency is measured by an assay of a marker compound, and an assay can be satisfied by material that is not what you think it is. This guide is organised around that problem.

The three ways an extract is described, and what each is worth

Extraction ratio. Written as 4:1, 10:1, 20:1. It describes how much raw herb notionally went into the extract. It is a process description, it is not verifiable in the finished product, and there is no test that confirms it. Useful as context; useless as a specification.

Standardisation to a marker compound. "Standardised to 5 percent withanolides." This is a measurable, enforceable specification — provided you also name the analytical method, because different methods give materially different numbers for the same material.

Full-spectrum or native extract. No added standardisation; the extract reflects the plant's own composition. Sold on identity and process rather than on a number, which makes identity testing more important rather than less.

For anything where efficacy or label claims matter, buy standardised, with the method named. For anything traditional or full-spectrum, buy on identity, a defined process and a fingerprint.

Identity: the question the assay does not answer

This is the most important section in this guide.

An assay tells you the concentration of a marker compound. It does not tell you where that compound came from. Three failure modes exploit that gap:

Species substitution. A cheaper related species that contains some of the same compounds. Common where two species share a common name.

Dilution. Inert filler, maltodextrin, rice flour, or a different plant material, with the marker topped up so the assay still passes.

Spiking with synthetic marker. The serious one. A synthetic or isolated version of the marker compound added to low-grade material so the assay reads correctly. Potency testing is entirely defeated; only identity and profile methods catch it.

The controls:

HPTLC fingerprinting. A chromatographic fingerprint compared against a reference for the species. Widely used, relatively inexpensive, and catches gross substitution.

HPLC profiling. Looks at the whole profile rather than a single peak. A genuine extract shows a characteristic pattern of related compounds; a spiked one shows the marker with the accompanying profile missing.

DNA-based identification, useful for raw herb and for some extracts, though DNA can be degraded by extraction.

Isotope ratio methods, which can distinguish plant-derived from synthetic compounds in some cases.

Residues and contaminants

Extraction concentrates whatever was in the plant, which means residue control matters more in extracts than in the raw herb.

Residual solvents. Extraction uses solvents — water, ethanol, hexane, acetone, methanol, supercritical CO2 — and residues remain. Test against your destination pharmacopoeia's limits. Ask which solvents were used, because a supplier's process determines which residues are even possible, and a solvent panel that omits the one they actually used is worthless.

Pesticides. The raw herb is an agricultural crop, frequently wild-collected or grown with limited input control. Extraction concentrates residues along with actives, which means an extract can exceed a limit that the raw material met. Multi-residue panel scoped to your destination.

Heavy metals. Lead, cadmium, mercury and arsenic. A specific and well-known focus for ayurvedic products, partly because some traditional preparations historically included mineral components deliberately. Test every lot.

Aflatoxin and microbiology. Dried plant material is a mould substrate. Total plate count, yeast and mould, E. coli, Salmonella, and aflatoxin.

Adulterants and processing aids — carriers, flow agents, anti-caking agents. Specify what is permitted and require declaration.

Standards and the pharmacopoeia question

Several reference frameworks apply, and naming the right one saves argument.

Indian Pharmacopoeia and the Ayurvedic Pharmacopoeia of India define monographs for many herbs and preparations. Useful and India-specific.

United States Pharmacopeia and European Pharmacopoeia carry monographs for many botanicals and are what a regulated Western buyer usually needs.

USP dietary supplement monographs for the nutraceutical trade.

AHPA and industry guidance on identity and adulteration.

The practical point: name the pharmacopoeia and the monograph in the specification. "Complies with USP" is a stronger and more testable requirement than a list of parameters you assembled yourself, and it removes the argument about which limits apply.

Facility standards

WHO-GMP for ayurvedic and herbal medicine manufacture, issued in India by state licensing authorities. Covers premises, equipment, personnel, documentation and quality control, and is the standard most Indian herbal manufacturers will cite.

AYUSH licensing, the Indian regulatory framework for ayurvedic, yoga, unani, siddha and homoeopathy products.

ISO 22000 or FSSC 22000 where the extract is a food ingredient.

FSSAI licensing for food-grade material.

US FDA registration where product is destined for the United States, plus compliance with dietary supplement current good manufacturing practice.

Organic certification — NPOP, NOP, EU organic — where the claim is made, with scope covering the specific product and site.

As always: a certificate covers a site on a date. It is a filter for who you talk to, and testing decides whether you accept a lot.

Extraction methods, and why the process is part of the specification

How an extract is made determines what is in it, and buyers who specify only a marker percentage leave the process entirely to the supplier.

Water extraction. Traditional, gentle, produces a profile closest to the classical decoction. Lower yield of lipophilic compounds.

Hydro-alcoholic extraction. The workhorse. Ethanol-water in varying ratios, adjustable to target different compound classes. Residual ethanol is the solvent to test.

Hexane and other hydrocarbon solvents. Used for lipophilic actives such as oleoresins. Efficient, and the residual solvent limits are correspondingly important.

Supercritical CO2. Solvent-free in the conventional sense, produces clean lipophilic extracts, capital intensive and therefore more expensive. Increasingly requested by buyers who want to avoid solvent residues entirely.

Enzyme-assisted and other modern methods, used for specific actives.

Two buyer-relevant consequences. The method determines which residues are possible, so your solvent panel must match the process — testing for ethanol when the plant used hexane proves nothing. And the method changes the extract, so a supplier who switches from hydro-alcoholic to CO2 has changed your product even if the marker percentage is unchanged. Specify the method, and require notification of any change.

Carriers and excipients

Most powdered extracts contain a carrier — maltodextrin, gum acacia, rice flour, silicon dioxide as a flow agent. This is normal and necessary for handling, and it is also where undeclared dilution hides.

Specify which carriers are permitted, at what maximum percentage, and require them declared on the certificate of analysis. An extract standardised to 5 percent marker with 40 percent undisclosed maltodextrin is a different commercial proposition from the same standardisation on a native base.

Where extracts are made

Hyderabad and Telangana. A large pharmaceutical and fine-chemical base with substantial extract capability.

Bengaluru and Karnataka. Nutraceutical and extract manufacturers, strong on standardised actives and export documentation.

Indore and Madhya Pradesh. Close to significant herb growing areas, which shortens the raw material chain and helps traceability.

Ahmedabad and Gujarat. Chemical and pharmaceutical base with extraction capacity.

Kerala. The traditional heartland of ayurveda, with both classical preparation houses and modern extraction facilities, and a deep base of formulation expertise.

Kolkata and the east, plus growing capacity in Uttarakhand and Himachal Pradesh, which sit close to Himalayan herb sources and have attracted investment in cultivation as well as processing.

Proximity to raw material matters for some herbs and not for others, since much raw material moves within India regardless. What matters more is whether the manufacturer controls raw herb sourcing or buys on the open market — the former is where consistency comes from.

Raw material: the part nobody asks about

The extract inherits everything from the herb, and the herb supply chain is the least visible part of this trade.

Cultivated or wild-collected. Wild collection is common for several ayurvedic herbs and brings variable quality, sustainability questions and species-identity risk, since collectors are paid by weight and adjacent species look similar.

Growing region and season, which affect marker content substantially. The same species from two regions can differ by a factor in active content.

Plant part. Root, leaf, fruit, bark and whole plant have different compositions, and part substitution — leaf where root was specified, because leaf is cheaper and more abundant — is a recognised form of adulteration.

Post-harvest handling and drying, which determine microbiology and aflatoxin risk before extraction begins.

Ask the manufacturer where their herb comes from, whether they contract growers, and how they verify species and plant part at intake. A manufacturer with contracted cultivation and intake testing is a different proposition from one buying dried herb on a spot market.

The extracts India actually exports

A partial map, with the parameter that usually matters for each.

Two patterns worth noting. Where a synthetic version of the marker exists and is cheap — curcumin, forskolin, piperine — spiking is a live risk and identity testing is not optional. And where the plant part matters — ashwagandha root versus leaf being the best-known case — the specification must name the part and the identity test must be able to distinguish.

Stability, packing and shelf life

Extracts degrade, and the rate depends on the compound class, moisture and light.

Moisture is the primary driver. Powdered extracts are hygroscopic, and a drum opened in a humid warehouse absorbs water quickly. Specify a maximum moisture and require moisture-barrier packing.

Oxygen and light degrade many actives, particularly carotenoids, polyphenols and volatile-rich extracts. Foil-lined bags inside fibre drums, nitrogen flushing for sensitive materials, and opaque packing.

Temperature. Ambient shipping is normal for most extracts; a few need cool chain.

Shelf life is commonly quoted at twenty-four months for stable powdered extracts and less for others. Ask what stability data supports the figure, because a shelf life stated without data is a convention rather than a finding.

Two practical points. Require the manufacturing date and lot number on every container, not just on the paperwork. And retain a sealed sample from each lot — if a potency question arises eighteen months later, a retained sample is the only way to distinguish a manufacturing problem from a storage one.

Classification, briefly

Extracts commonly sit at 1302.19 as vegetable saps and extracts. Raw or lightly processed plant material for pharmacy sits at 1211.90. Finished medicaments fall in Chapter 30. Preparations formulated as food supplements can fall to 2106.90.

The distinction matters because duty and regulatory treatment differ substantially, and because the same physical material can be classified differently depending on presentation and claimed use. This is a case worth confirming with your broker and, for a repeated import, worth a binding ruling. Our HS code guide covers the method.

Sustainability and the wild-collection question

A meaningful share of ayurvedic raw material is wild-collected rather than cultivated, and that raises questions buyers increasingly have to answer.

Species pressure. Several medicinal plants are under collection pressure, and some are listed under CITES or national protection frameworks. A species restricted under CITES requires permits, and shipping without them is a customs and legal problem rather than a paperwork one.

Traceability. Wild collection aggregates through many collectors and intermediaries, which makes chain of custody genuinely hard to evidence. A supplier claiming full traceability on a wild-collected herb should be able to show records, not assert it.

Quality variability. Wild material varies by location, season and collector, and collectors are typically paid by weight, which creates an incentive toward adulteration with adjacent species.

Cultivated alternatives exist for many herbs and generally offer better consistency, better traceability and lower sustainability risk, at a higher raw material cost. For a buyer with regulatory exposure or brand claims, that premium is usually worth paying.

Two certification frameworks are worth asking about: FairWild, which covers sustainable wild collection, and organic certification, which for wild-collected material certifies the collection area rather than a farm. Both are meaningful and both require checking that the scope covers your specific material.

Verifying an extract manufacturer

The four-layer approach in our supplier verification guide applies, with four additions specific to this trade.

Ask to see the extraction plant. Extractors, evaporators, spray dryers, and the solvent recovery system. This is substantial capital equipment and it either exists or it does not — a trading office reselling someone else's extract cannot show you an evaporator running, and asking to see one on an unscheduled video call is the fastest discriminator available in this trade.

Ask to see the laboratory. HPLC and HPTLC at minimum, ideally with atomic absorption or ICP for heavy metals and a gas chromatograph for residual solvents. Ask what identity testing they perform as routine rather than on request, and ask to see a chromatogram for your product from a commercial lot last month rather than from a sample prepared for you.

Ask about raw herb control. Whether they contract cultivation or buy on the open market, what identity and quality testing happens at intake, how they verify plant part, and what they do when a delivery of raw herb fails. This is where extract consistency is actually determined, and it is the part of the operation a buyer almost never asks about.

Ask about their regulated customers. A manufacturer supplying a pharmaceutical company or a major nutraceutical brand has been audited far more rigorously than you are likely to audit them, and has had to hold a documentation standard that survives inspection. Ask which markets they ship to and whether they have been through a customer audit — most will say, and the answer is worth more than any certificate on the wall.

Ask what happens when a lot fails. A manufacturer with a real quality system quarantines, investigates, and either reworks or rejects. One who says lots do not fail is either not testing or not telling you.

Reading a certificate of analysis in this trade

Extract certificates look thorough and frequently establish less than they appear to. Six checks turn one into evidence.

Is the species stated by Latin binomial? A common name is not an identification. "Ashwagandha" is not a specification; *Withania somnifera* root is.

Is the plant part stated?

Is the analytical method named for each parameter? A marker percentage without a method is a number without a scale.

Is identity tested, or only assay? Look for a chromatographic identity or fingerprint result. Its absence is the most common gap.

Are carriers and excipients declared, with percentages?

Is the laboratory named and accredited for these tests? And is the lot number on the certificate traceable to the drums you received?

One further check, which is the most informative of all: ask for the chromatogram, not just the result table. A profile shows whether the marker sits within the expected pattern of related compounds or stands alone. A supplier who provides chromatograms as a matter of course is operating a real laboratory; one who cannot is reporting numbers from somewhere else.

Testing independently, and how much

Independent verification is more important in botanicals than in almost any other category, and it does not have to be exhaustive.

A workable regime for a new supplier:

First lot: full independent panel. Identity by chromatographic fingerprint, assay by the specified method, residual solvents, heavy metals, pesticides, microbiology. Send to a laboratory experienced in botanicals rather than a general food laboratory — botanical identity work is a specialism.

Subsequent lots: identity and assay, with the full panel periodically.

Every lot: the supplier's own certificate, checked against the six points above, and a retained sealed sample.

Then track the delta between the supplier's reported figures and your independent results. Across three lots that tells you whether their laboratory is accurate, optimistic, or reporting numbers unconnected to the material — and it is worth more than any certification they hold.

The cost is modest against the value of a drum of active, and trivial against the cost of a product recall or a failed regulatory inspection at your end.

A first-order checklist

1. Specify the botanical species by full Latin binomial, and the plant part.
2. Specify standardisation as a marker percentage with the analytical method named.
3. Require identity testing by a named method, separately from assay.
4. Name the pharmacopoeia or monograph the material must comply with.
5. Specify residual solvent limits, and ask which solvents the process uses.
6. Specify pesticide, heavy metal, aflatoxin and microbiological limits.
7. Specify permitted carriers and excipients, and require declaration of any.
8. Require a full certificate of analysis per lot, from a named laboratory.
9. Commission independent identity and assay testing on the first lot, and periodically after.
10. Retain a sealed sample from every lot.

Pricing and what drives it

Extract pricing decomposes into raw herb cost, extraction yield, standardisation level and process.

Raw herb is agricultural and moves with harvest, weather and demand. A herb that becomes fashionable in Western supplement markets can double in raw cost within a season.

Yield is the dominant technical variable. An extract standardised to 5 percent marker from a herb containing 0.5 percent requires far more raw material than one at 2 percent, and the cost scales accordingly. This is why the price gap between standardisation levels is steeper than the percentage difference suggests.

Process. CO2 extraction costs materially more than hydro-alcoholic. Additional purification steps to reach high standardisation cost more again.

Testing and documentation. A manufacturer producing full identity, residue and stability data for every lot is carrying a real cost that a supplier issuing a one-page certificate is not.

Where the negotiating room sits: standardisation level, if your formulation does not need the highest; volume and scheduling; and carrier specification, since a native extract costs more than a carried one and not every application needs it.

Where there is very little room: a low quotation on a high-standardisation extract of a herb with poor natural marker content. The arithmetic of yield does not permit it, and a price that ignores the arithmetic is telling you something about the material.

Where Katalyzon fits

We do not manufacture and take no position in the goods, and nothing here is regulatory advice — a product entering a regulated market needs your own regulatory function or a consultant.

What we do is establish whether the counterparty operates an extraction plant or resells, verify licences and certifications against evidence we can show you, and coordinate the independent testing that answers the identity question before your money moves.

Browse the Herbal & Ayurveda category for indicative specifications, or post a requirement and our desk will scope it. Every brief is read by a person before anything is routed, and your details stay masked until you accept a quote.

For counterparty vetting, see our supplier verification guide. For the general import process, our guide to importing from India. For how our verification tiers are defined, our methodology.

The short version

Buy identity first and potency second, because an assay can be satisfied by material that is not what you ordered.

Specify the species by Latin binomial and the plant part. Specify standardisation as a marker percentage with the analytical method named, and treat an extraction ratio as context rather than a specification. Require identity testing — HPTLC, HPLC profile or DNA — as a separate line from assay. Test residual solvents against the solvents actually used, plus pesticides, heavy metals, aflatoxin and microbiology.

Then verify that your counterparty owns an extraction plant and a laboratory rather than a trading office, and commission your own independent test on the first lot. In a trade where spiking defeats potency testing, independent identity confirmation is not excessive caution — it is the only thing that establishes what you bought.