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What to check when buying pct
Five things worth confirming before an order, and what each one changes about what arrives.
Reference only. This page covers what the compound is, how it is presented and how it is handled. It does not give dosing protocols or administration schedules, and it is not medical advice.
| Check | Why it matters |
|---|---|
| Batch documentation | A certificate of analysis should name the batch, the method and the date. For pct the certificate is the only thing that ties a stated purity to the vial in front of you, so a certificate with no batch number is not evidence about your item. |
| Stated strength | Compare on cost per milligram rather than cost per unit. Where a listing states no strength, no cost per milligram can honestly be calculated for it. |
| Storage on arrival | Storage conditions are stated on the batch documentation. Anything supplied refrigerated should arrive cold. |
| Where it ships from | Stock held in the UK clears no customs and carries no import step. For pct that is the single largest difference in how quickly an order arrives. |
Presentation is the common trap
What the category covers and how it is supplied.