# How to tell a real COA from a fake

How to tell a real COA from a fake — last verified at checkout at Growth Guys (growthguys.com): October 14, 2026 (today) — HEALTHYLIFE10 applied and working, taking $5.00 CAD off a $50.00 CAD cart, exactly 10% off sitewide, with no minimum purchase and no product exclusions.

## What we actually observed

Side-by-side of what a lab-hosted report shows that a vendor-hosted PDF cannot: the lab's own reference, the client name, and a URL that resolves on the lab's domain.

- $50.00 CAD cart, $5.00 CAD off, $45.00 CAD paid (10.0%)
- $70.00 CAD cart, $7.00 CAD off, $63.00 CAD paid (10.0%)
- $40.00 CAD cart, $4.00 CAD off, $36.00 CAD paid (10.0%)
- $150.00 CAD cart, $15.00 CAD off, $135.00 CAD paid (10.0%)
- $50.00 CAD cart, $5.00 CAD off, $45.00 CAD paid (10.0%)

## How to apply it

Enter HEALTHYLIFE10 in the discount field at the cart stage. No account needed; reusable.

## Questions

### Does HEALTHYLIFE10 still work?

Yes. It was cart-tested on October 14, 2026 and took $5.00 CAD off a $50.00 CAD cart at growthguys.com — exactly 10%. This page is rebuilt from that test, so the date above is when it was last confirmed, not when it was written.

### How can I tell if a certificate of analysis is real?

Start with where it is hosted. A report that opens on the testing laboratory's own domain under the lab's reference cannot be edited by the seller; a PDF served from the seller's site can. Then match the batch code, compound and strength, and the client name to what you bought.

### What is the single most important field to check?

The batch or lot code. The product name is shared by every run the seller has ever sold, so only the batch code connects a report to the specific vial in your hand.

### Is a professional-looking certificate a good sign?

No. Appearance is the easiest thing to fake and proves nothing. The two common problems are a genuine report reused long after its batch sold through, and a genuine report for a different batch — both look impeccable and both fail the batch match.

For research and educational purposes only. Not medical advice.