Onion peel extract is a food-derived botanical, which keeps its regulatory path relatively clean — but "clean" is not "automatic." Whether you are buying for a supplement, a food or a cosmetic, the destination market sets the contaminant limits, the permitted claims and the documentation you must hold. This guide outlines the manufacturing standards, the limits that belong on a Certificate of Analysis, the labelling traps to avoid, and the export paperwork to expect from an Indian supplier.
Manufacturing Standard: GMP & FSSAI
Start with where and how the material is made. A credible onion peel extract is produced under GMP conditions, by a manufacturer holding FSSAI registration in India, with a documented quality system behind each batch. These are baseline expectations, not premium features — ask for the certificates during supplier qualification, and confirm that the facility actually manufactures (rather than only repacks) the extract.
Onion (Allium cepa) is a widely-consumed food, which simplifies its standing in most jurisdictions relative to novel botanicals. Even so, the extract form, the intended use and any concentrated quercetin claim can change how a regulator treats it — always confirm status for your specific market and application.
Contaminant Limits That Belong on the CoA
Because onion peel is an agricultural by-product, contaminant control is where a CoA earns its keep. Insist on tested limits for heavy metals and microbiology on every batch:
| Parameter | Typical limit | Method |
|---|---|---|
| Arsenic (As) | NMT 1 ppm | ICP-OES |
| Lead (Pb) | NMT 3 ppm | ICP-OES |
| Cadmium (Cd) | NMT 1 ppm | ICP-OES |
| Mercury (Hg) | NMT 0.1 ppm | ICP-OES |
| Total plate count | NMT 10,000 cfu/g | USP <2021> |
| Yeast & mould | NMT 100 cfu/g | USP <2021> |
| Coliforms | NMT 10 cfu/g | USP <2022> |
| E. coli / Salmonella / S. aureus | Absent | USP <2022> |
These limits reflect SV Botanica's current batch documentation; destination markets may set tighter thresholds, so reconcile the CoA against your own market's rules before import. Which assay sits alongside these contaminant lines — native ratio or standardised quercetin — is explained in quercetin HPLC vs UV testing.
Labelling: Avoid the Common Traps
Most compliance problems with onion peel extract are labelling problems, not safety problems:
- Do not claim a quercetin percentage a native grade cannot support. A 10:1 native extract is quercetin-rich but is not certified to a specific percentage. If your label states a quercetin figure, you must source a standardised, HPLC-assayed grade — see the buyer's guide.
- Name the plant part. Label and documentation should specify "onion outer peel / skin (Allium cepa)," not a generic "onion extract" that blurs peel and bulb.
- Keep health claims market-legal. Permitted structure/function and health claims differ by jurisdiction. Position the ingredient as a dietary flavonoid / quercetin source and verify any specific claim against local rules. SV Botanica supplies characterised raw material and does not provide medical claims.
- Declare allergens and carriers accurately. State any excipient or carrier, and the non-GMO / non-irradiated status, exactly as the CoA supports.
Compliance takeaway: the grade you buy must match the claim you make. Buying a native extract and labelling a quercetin percentage is the single most common — and most avoidable — compliance error with this ingredient.
Export Documentation from India
For shipments leaving India, a complete documentation pack should travel with the goods:
- Batch-specific Certificate of Analysis — identity, grade, physical, heavy-metal and microbial results for the exact lot.
- MSDS / Safety Data Sheet.
- Declarations — Non-GMO, allergen statement, BSE/TSE-free, non-irradiation status.
- Country of Origin certificate and, where required, phytosanitary or import-specific certificates for your market.
- Specification sheet and traceability — batch number, manufacture and expiry dates, 36-month shelf life basis.
Confirm in advance which additional certificates your destination customs and regulator require, so a shipment is not held at the border. For the full sourcing and specification picture, return to the onion peel buyer's guide.
Need Export-Ready Onion Peel Extract?
GMP & FSSAI · ICP-OES heavy-metal tested · full export documentation · batch-specific CoA · Samples for qualified buyers