Sourcing testosterone API from China
Testosterone active ingredient from China carries 0% UK duty under the other steroidal hormones line. Commercial imports require Home Office controlled-drug licensing; human-medicine ingredients also need MHRA registration. Confirm the applicable good manufacturing practice requirements with the MHRA. Cambridge China Bridge sources testosterone active ingredient.
0% duty on bulk testosterone active ingredient
Read from the UK Trade Tariff on 13 November 2026, heading 2937 covers hormones and their derivatives and structural analogues. Bulk testosterone and its ester active ingredients fall within the other steroidal hormones line, 2937 29 00 00. The forms listed share this line; they are distinct purchasing specifications. See the wider hormones and steroids guide.
The supplied tariff record shows 0% duty for goods from China, no anti-dumping or countervailing duty and no suspension. It attaches Home Office controlled-drug import and export controls, plus a waste-export control. Testosterone is a controlled drug, and commercial imports require Home Office licensing. Ask your customs broker to confirm the export-control requirements before returning rejected material to China, particularly if it may be waste.
Confirm the commodity code using the exact substance, ester and presentation. Prepared medicines in measured doses belong under heading 3004, while bulk medicament mixtures belong under heading 3003. This guide concerns the active ingredient rather than a finished injection, gel or capsule.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Testosterone active ingredient | 2937 29 00 00 | 0% | None |
Specify testosterone identity and medicine paperwork
Write the exact substance into the purchase specification: testosterone or the named ester. Specify the agreed pharmacopoeial monograph, identity test, assay, related substances, residual solvents, particle size or micronisation, relevant crystal form, packing, storage conditions and retest date. Agree the analytical methods before approving a sample.
For human-medicine ingredients, UK importers and distributors must register with the MHRA. Confirm the applicable good manufacturing practice requirements with the MHRA. For the Chinese manufacturing site, obtain written confirmation from the issuing authority in that country. Check the producer's documents through factory verification before ordering.
Worked duty example
Illustrative example, not a quote: 25 kg of testosterone active ingredient, illustrative only under 2937 29 00 00, invoiced at £40,000 free on board, with £800 of freight and insurance to the UK. The customs value is £40,800. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £40,800, so it is £8,160. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Identity: check that the drum label, purchase specification and batch certificate name the same testosterone substance or ester.
Analysis: independently test identity, assay, related substances and residual solvents against the agreed specification.
Documents: check the controlled-drug import licence, importer registration, manufacturing evidence and written confirmation against the actual supplier and substance.
Packing: inspect seals, batch labels, moisture damage and containment; compare storage and transport records with the agreed conditions.
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What goes wrong
An order can fail when the quoted substance and delivered ester differ, a batch certificate does not match the drums, or an acceptable assay masks an unsuitable impurity profile. A visually clean powder does not establish identity or pharmaceutical suitability.
Resolve licensing and medicine paperwork before dispatch. Keep a disputed batch separate while identity and quality are investigated, and agree how rejected material will be handled before arranging its return. Use the quality inspection guide to define sampling and acceptance checks.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For repeat volumes, see container programmes.
Frequently asked questions
What is the UK import duty on testosterone from China?
The supplied tariff record shows 0% duty under 2937 29 00 00, with no anti-dumping or countervailing duty and no suspension. Confirm the exact substance and presentation before declaring it.
Do I need a licence to import testosterone for a business?
Yes. Testosterone is a controlled drug, and companies importing controlled drugs need Home Office licensing. Resolve the licensing route before shipment.
Do testosterone ingredient importers need MHRA registration?
Yes for human-medicine active substances. UK importers and distributors must register with the MHRA. Check manufacturing evidence and obtain the Chinese issuing authority's written confirmation.
What should I test when testosterone powder arrives?
Check the exact substance or ester, batch identity, assay, related substances and residual solvents. Match the independent results to the agreed specification and the certificate supplied with the drums.