Key takeaways
- Choosing a botanical extract supplier for supplement brands in the EU is a documentation decision as much as a chemistry one: the extract you buy must be both legally placeable on the EU market and analytically provable against a written specification.
- The EU Novel Food framework — Regulation (EU) 2015/2283 — is the first gate. Many botanical preparations were eaten in the EU before 15 May 1997 and are not novel; others (new species, new extraction ratios, concentrated fractions) may require EFSA assessment and Commission authorisation before they can be sold as food.
- An extract is only meaningful if you can describe it precisely: standardisation to a marker compound (%), the drug-extract ratio (DER), the extraction solvent (supercritical CO₂, ethanol, or water), and the carrier or excipient. Two "milk thistle extracts" with different DER and marker levels are different raw materials at different prices.
- A complete Certificate of Analysis (COA) for a food-grade botanical extract should cover identity, the marker assay, heavy metals, microbiology, residual solvent, and pesticide residues — tied to the exact lot number, not a generic product template.
- Arovela supplies natural extracts from a Sındırgı (Balıkesir, Türkiye) facility with a warehouse in Solingen, Germany, running on ISO 22000, ISO 9001, and ISO 27001 documentation with a per-batch COA. We provide the specification and analytical paperwork that supports your own Novel Food and labelling assessment — we do not make health claims on your behalf.
Introduction: why extract sourcing is harder than it looks
If you formulate or contract-manufacture food supplements, finding a botanical extract supplier for supplement brands selling into the EU is rarely the hard part — the hard part is finding one whose material you can actually defend. A nutraceutical brand does not just need "an ashwagandha extract" or "a green tea extract." It needs a defined preparation with a known drug-extract ratio, a guaranteed marker percentage, a declared extraction solvent, a clear Novel Food status, and a per-batch Certificate of Analysis that a quality manager or a Responsible Person can put in front of a national competent authority.
The European market is unforgiving here. Two suppliers can both quote you a "standardised extract" at wildly different prices, and the difference is almost always hidden in the specification: a higher marker percentage, a tighter DER, a cleaner residual-solvent profile, or — critically — a clearer regulatory position. Buying the cheaper number without reading the spec is how brands end up with a raw material they cannot label correctly, cannot pass through a desk audit, or cannot legally place on the market at all.
This guide is written for supplement and nutraceutical procurement, R&D, and regulatory teams sourcing botanical extracts for the EU. It walks through the Novel Food framework and EFSA, how to read standardisation and DER, how solvent choice changes both chemistry and compliance, and exactly what a full COA and specification sheet should contain. If you are also weighing extraction methods at a technical level, pair this with our CO₂ vs ethanol extraction guide for B2B buyers; for the broader regulatory landscape, see our EU market-entry guide for natural products.
The EU Novel Food framework: your first gate
Before chemistry, before price, before samples, the first question for any botanical extract destined for an EU food supplement is: is this preparation a Novel Food?
What "novel" actually means
Under Regulation (EU) 2015/2283 on novel foods, a "novel food" is any food that was not used for human consumption to a significant degree within the EU before 15 May 1997. That cut-off date is the hinge of the entire system. A botanical preparation can fall on either side of it depending on the species, the part of the plant used, the extraction process, and the concentration.
This matters enormously for extracts, because the regulation treats the preparation, not just the plant, as the relevant object. A herb may have a long history of use as a dried tea, yet a concentrated solvent extract of the same herb — with a high drug-extract ratio and an elevated marker level — can be considered a different food with no demonstrated history of significant consumption. Many extracts therefore sit in a more sensitive position than the raw botanical they come from.
How to check status before you sample
The European Commission maintains the Novel Food Catalogue, a non-exhaustive but practical reference listing many plants and substances with an indicative status. For supplement-bound extracts, the workflow is straightforward and should happen before you request a paid sample:
- Identify the exact species (Latin binomial) and the plant part (root, leaf, fruit, aerial parts).
- Note the preparation: is this a dried herb, a tincture, a defined DER extract, or a purified/concentrated fraction?
- Check the Novel Food Catalogue entry and any relevant Commission authorisations or EFSA opinions for that preparation.
- Distinguish "history of use as food" from "history of use as a medicine or supplement," because the legal tests differ.
If a preparation is novel and not yet authorised, it cannot be lawfully placed on the EU food market until it goes through the authorisation route — and that is a regulatory project, not a purchase order.
Where EFSA fits in
The European Food Safety Authority (EFSA) is the scientific body that carries out the safety assessment when a novel food authorisation is sought, and that publishes scientific opinions and guidance on botanical safety. For botanical ingredients more broadly, EFSA has also published a compendium of botanicals flagging substances of possible concern (for example, naturally occurring compounds that warrant attention at certain intake levels). Brands use these EFSA outputs as part of their own safety dossier and risk assessment. You can consult EFSA's work on botanicals directly via the EFSA botanicals topic page.
A clear boundary on our role. Arovela is an ingredient supplier. We provide the identity, specification, and per-batch analytical documentation that feed your Novel Food check and your safety assessment. We do not make health or efficacy claims about extracts, and we do not certify the Novel Food status of your finished product — that determination rests with the brand placing the product on the market, ideally with qualified regulatory advice. What we can do is make sure the paperwork underneath that decision is complete and lot-specific.
A quick note on claims: even where an extract is perfectly legal as a food ingredient, health claims on the finished supplement are governed by a separate regime (the EU nutrition and health claims rules) and must be authorised. "Legal to sell" and "legal to make a claim about" are two different questions. Keep them separate in your specification and your marketing copy.
Reading an extract specification: DER, marker %, and solvent
Once Novel Food status is clear, the next job is to read the extract as a defined material. Three parameters do most of the work.
Drug-extract ratio (DER)
The drug-extract ratio (DER) expresses how much raw botanical ("drug," in pharmacopoeial language) was used to produce one unit of extract. A DER of 10:1 means roughly ten kilograms of starting herb were processed to yield one kilogram of extract (a "native" extract, before any carrier is added). A higher DER generally signals a more concentrated material — but only when read together with the marker level and the solvent, because concentration of bulk is not the same as concentration of the compound you care about.
Two cautions for buyers:
- Native vs. finished DER. Many commercial extracts are standardised onto a carrier (for example maltodextrin or the plant's own fibre) to hit a target marker percentage and improve flowability. The DER you should compare is the native DER of the extract itself; a "10:1" claim becomes meaningless if half the finished powder is carrier and that is not disclosed.
- Solvent context. A water extract and an ethanol extract at the same nominal DER are not the same, because the two solvents pull different compound classes out of the plant. DER is only comparable within a like-for-like extraction.
Standardisation to a marker compound
Standardisation means the extract is manufactured and tested to deliver a defined percentage of a chosen marker compound — measured by a validated method such as HPLC or UV-Vis. The marker may be the active of interest or simply an analytical handle that proves identity and batch-to-batch consistency. Examples of the type of specification you will see (illustrative, to show the pattern — always confirm against the live COA):
| Botanical (example) | Common marker class | How it is typically expressed | |---|---|---| | Milk thistle (Silybum marianum) | Silymarin / flavonolignans | % silymarin by HPLC | | Green tea (Camellia sinensis) | Catechins / EGCG | % total catechins or % EGCG | | Turmeric (Curcuma longa) | Curcuminoids | % total curcuminoids | | Ginkgo (Ginkgo biloba) | Flavone glycosides / terpene lactones | dual % specification | | Rosemary (Rosmarinus officinalis) | Carnosic acid / rosmarinic acid | % carnosic or % rosmarinic acid |
The lesson for procurement is simple: price the marker percentage, not the name. A 30% marker extract and an 80% marker extract are different products, and the gap in concentration is usually reflected in both the price per kilogram and the dose you need in the finished tablet or capsule. Always pin the marker, the method, and the acceptance range on the purchase order, then verify them on the lot COA. For a deeper read on the documents themselves, see our guide on reading a COA for botanical ingredients.
Extraction solvent: CO₂, ethanol, or water
The extraction solvent determines which compounds end up in the extract, the residual-solvent profile you must control, and often the regulatory positioning of the material.
| Solvent | Pulls best | Residual-solvent concern | Typical positioning | |---|---|---|---| | Supercritical CO₂ | Terpenes, waxes, lipophilic actives, volatile aromatics | Effectively none (CO₂ flashes off) | Premium, "solvent-free" claim, lipophilic actives | | Ethanol (food-grade) | Polyphenols, flavonoids, glycosides, broad-spectrum | Must verify residual ethanol against limits | Workhorse for most standardised supplement extracts | | Water / hydro-ethanol | Polar compounds, polysaccharides, tannins, glycosides | Low residual-solvent risk (water); ethanol fraction still checked | Traditional water extracts, polysaccharide-rich materials |
A few practical implications:
- Match the solvent to the molecule. Polar phenolics (think many flavonoid- and polyphenol-standardised extracts) favour ethanol or hydro-ethanol; lipophilic actives and aromatic terpenes favour CO₂. A mismatch is a chemistry error, not a preference.
- "Solvent-free" is a CO₂ or water story. If a supplier markets a "clean" or "solvent-free" extract, the COA should back it up with a residual-solvent result, not just a marketing line.
- Hydrocarbon solvents are a red flag for clean-label supplements. Many premium EU supplement specifications restrict or exclude certain solvents; confirm what is permitted in your spec and that the supplier's process complies.
For the full technical comparison of the two dominant industrial routes — yield economics, scalability, and analytical paperwork — our CO₂ vs ethanol extraction guide goes considerably deeper than is possible here.
What a botanical extract supplier for supplement brands must document
This is where weak suppliers fall away. A serious botanical extract supplier for supplement brands issues a batch-specific Certificate of Analysis, tied to the exact lot number you are buying, against named method references. A COA without a lot number is a template, not a certificate.
A complete COA for a food-grade botanical extract should cover, at minimum, the following sections.
| COA section | What it confirms | Why a supplement brand needs it | |---|---|---| | Identity | Correct species/part; macroscopic, chromatographic (e.g. HPTLC) or DNA confirmation | Proves you received the right botanical, not a substitute or adulterant | | Marker assay | Marker compound % by validated method (HPLC/UV-Vis) | Confirms potency and batch-to-batch consistency against your spec | | Heavy metals | Lead, cadmium, arsenic, mercury within limits | Contaminant safety; required across EU food and supplement frameworks | | Microbiology | Total plate count, yeasts/moulds, E. coli, Salmonella, etc. | Confirms the powder is microbiologically safe for ingestion | | Residual solvent | Residual ethanol/other process solvents within limits | Proves the extraction solvent was removed to acceptable levels | | Pesticide residues | Screen against relevant MRLs | Agricultural-residue safety; a frequent gap in low-cost offers |
Beyond these analytical sections, ask for the documents that surround the COA:
- Specification sheet — the agreed, product-level document that defines the target extract (species, part, DER, marker %, solvent, carrier, organoleptic and physical parameters, and acceptance ranges). The specification says what the product should be; the COA proves what a given lot actually is. Keeping the two distinct is one of the most common documentation failures in botanical procurement.
- Safety Data Sheet (SDS) — hazard, handling, and storage information for the warehouse and production floor.
- Allergen and GMO statements — needed for finished-product labelling and customer questionnaires.
- Country-of-origin / traceability documentation — origin (Türkiye), batch lineage, and the harvest/processing trail your own traceability obligations require.
- Technical data sheet — solubility, particle size, recommended storage, and shelf life, so your formulation team can design the dosage form around the real material.
Specification vs. COA, in one line: the specification is the contract for what you are buying; the COA is the evidence that this lot met it. You need both, and they must agree.
A note on certifications and buyer requirements
Supplement brands frequently require suppliers to hold scheme certifications — organic, GMP, halal, kosher, or others — because their own positioning or customer demands it. Be precise about what a supplier actually holds versus what is a buyer requirement.
Arovela's certifications are ISO 22000, ISO 9001, and ISO 27001. We provide per-batch COA and the trade and technical documentation above. We do not claim organic, GMP, halal, kosher, or other scheme certificates for our extracts. If your specification requires one of those, raise it explicitly during supplier qualification so the right sourcing route can be confirmed rather than assumed — it is far cheaper to surface that requirement before the first sample than after a failed audit.
Sourcing workflow: from spec to first order
A disciplined sourcing process for an EU-bound supplement extract usually runs in this order:
- Define the spec first. Species, part, native DER, marker compound and target %, permitted extraction solvent, carrier, and any scheme-certification requirement. Vague briefs produce vague quotes.
- Clear the Novel Food question. Confirm the preparation's status before sampling, and decide whether the planned health claim (if any) is separately defensible.
- Request a paid sample with the lot COA attached. Have your lab or contract manufacturer verify the marker assay, residual solvent, and contaminants against your written spec.
- Confirm logistics and Incoterms. For EU buyers, ask whether stock can ship from an in-EU warehouse to shorten lead times and simplify intra-EU movement.
- Lock the specification into the contract. Reference the exact spec version, the acceptance ranges, and the requirement for a per-batch COA on every future shipment — not just the first.
Step 4 is where origin logistics matter. Arovela operates from a Sındırgı (Balıkesir) facility and holds stock in a warehouse in Solingen, Germany, which shortens lead times for EU-based supplement brands and reduces the customs friction of importing from outside the bloc for every order. Current grades, formats, sample requests, and quotes are handled through our wholesale page.
Frequently asked questions
What should I look for in a botanical extract supplier for an EU supplement brand?
Look for three things together: a clear position on Novel Food status for the exact preparation, a precise specification (species, plant part, native DER, marker compound and target %, and extraction solvent), and a per-batch Certificate of Analysis covering identity, marker assay, heavy metals, microbiology, residual solvent, and pesticides. A supplier who can produce all three — lot-specific, against named methods — is one you can defend in an audit. Price differences between "standardised extracts" almost always trace back to differences in marker %, DER, or documentation depth, so compare specifications, not just headline prices.
What is the EU Novel Food Regulation and does it apply to my extract?
The Novel Food Regulation (EU) 2015/2283 governs foods not consumed to a significant degree in the EU before 15 May 1997. It applies to preparations, not just plants — so a concentrated solvent extract can be treated as novel even when the raw herb has a long history of food use. Before sampling, check the species and plant part against the European Commission's Novel Food Catalogue and any relevant authorisations or EFSA opinions. If a preparation is novel and not yet authorised, it cannot be lawfully placed on the EU food market until it goes through authorisation. This is a determination the brand placing the product on the market must make, ideally with qualified regulatory advice.
What does drug-extract ratio (DER) mean, and why does it affect price?
DER describes how much raw botanical was used to make one unit of native extract — a 10:1 extract used roughly ten parts herb to one part extract. A higher DER usually signals a more concentrated material, but it only tells the full story alongside the marker percentage and the extraction solvent, because bulk concentration is not the same as concentration of the active marker. Watch for extracts standardised onto a carrier: compare the native DER, not a finished-powder figure that may be half excipient. Higher DER and higher marker percentages generally command higher prices and allow lower dosing in the finished product.
Which extraction solvent is best — CO₂, ethanol, or water?
There is no universally "best" solvent; it depends on the molecule. Supercritical CO₂ excels at terpenes, waxes, and lipophilic actives and leaves effectively no residual solvent, which supports a clean-label position. Food-grade ethanol is the workhorse for polyphenols, flavonoids, and glycosides and scales easily, but residual ethanol must be verified on the COA. Water or hydro-ethanol suits polar compounds and polysaccharide-rich materials. Match the solvent to the target compound, confirm what your specification permits, and require a residual-solvent result on every lot. Our CO₂ vs ethanol extraction guide compares the routes in detail.
What tests must appear on the COA for a food-grade botanical extract?
At minimum: identity (species/part confirmation), the marker assay (% marker by a validated method such as HPLC or UV-Vis), heavy metals (lead, cadmium, arsenic, mercury), microbiology (total counts, yeasts/moulds, and pathogens such as Salmonella and E. coli), residual solvent, and pesticide residues. Every result must be tied to the exact lot number and reference the test methods used. Alongside the COA, request the specification sheet, SDS, allergen/GMO statements, and country-of-origin documentation. A COA without a lot number is a template, not a certificate — treat it as a red flag.
Does Arovela make health claims or guarantee Novel Food approval?
No. Arovela is an ingredient supplier: we provide the identity, specification, and per-batch analytical documentation that support your own Novel Food check, safety assessment, and labelling. We do not make health or efficacy claims about extracts, and we do not certify the Novel Food status of your finished product — that responsibility sits with the brand placing the product on the EU market. We hold ISO 22000, ISO 9001, and ISO 27001 and supply with per-batch COA from a Sındırgı (Balıkesir) facility and a Solingen, Germany warehouse for short EU lead times.
Source extracts with the documentation your dossier needs
For an EU supplement brand, the right botanical extract is the one you can both sell legally and prove analytically — a defined DER, a guaranteed marker percentage, a declared solvent, a clear Novel Food position, and a per-batch COA your quality team and Responsible Person can stand behind. Arovela supplies natural extracts from a Sındırgı (Balıkesir) facility with a Solingen, Germany warehouse for short EU lead times, backed by ISO 22000, ISO 9001, and ISO 27001 documentation and per-batch COA — and clear about where our role ends and your regulatory assessment begins.
Tell us the species, plant part, target DER, marker compound, and destination market, and we will match the right extract specification and the paperwork to support your filing. Contact the Arovela team to request a specification sheet, a sample, and a quote.