Certificate of Analysis With Specific Lot Number (COA)

If you require a Lot-Specific COA for a product which you have received, we charge a nominal processing fee of $1.50 per COA. Our COA processing time is typically 1 week and we send it to you by email. If you would like to proceed, please follow the instruction below.

1. Add the 'Quantity' of COA you need to your shopping cart. We charge $ 1.50 per COA.

2. Go to your shopping cart, in the 'Note to TKB' section enter Name & Lot Number* for each product. One product per line. See Example

3. Checkout and pay for your order.

Note: We will not be able to generate your COA without the names & lot numbers of the products. Once the documents are ready, we will send them to you electronically via email.

*Lot number is located on the product label. Usually at the bottom left of the label.