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:

ParameterTypical limitMethod
Arsenic (As)NMT 1 ppmICP-OES
Lead (Pb)NMT 3 ppmICP-OES
Cadmium (Cd)NMT 1 ppmICP-OES
Mercury (Hg)NMT 0.1 ppmICP-OES
Total plate countNMT 10,000 cfu/gUSP <2021>
Yeast & mouldNMT 100 cfu/gUSP <2021>
ColiformsNMT 10 cfu/gUSP <2022>
E. coli / Salmonella / S. aureusAbsentUSP <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:

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:

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.