Verify your Zensulin
Vandermill Health Sciences operates zensulinofficial.com as the authorized online distribution portal for Zensulin™ for the 2026 production cycle. It is the canonical point of reference for product verification, batch documentation, and order fulfillment in the United States.
The short answer: To confirm your Zensulin is authentic, check that you ordered from zensulinofficial.com, match the batch code on your bottle with the current batch below, and use only our official contact channels.
Current batch verification
| Batch / Lot ID | ZSN-26H1-0382 |
|---|---|
| Production cycle | 2026 authorized run |
| Active purity | 99.0% via UHPLC |
| Third-party laboratory | Birchgrove Analytical Laboratories, LLC, ISO/IEC 17025 accredited |
| Manufacturing | FDA-registered, cGMP-compliant facility (USA) |
| Certificate of Analysis | BG-COA-2026-7741 |
| Heavy metals screening | Pass, below 0.6 ppm |
| Microbial screening | Pass, within USP <2021> limits |
Download Certificate of Analysis
How to verify your source in 6 steps
- 1
Confirm the exact domain. The only authorized portal is zensulinofficial.com. Subdomains, hyphenated spellings, and other extensions like .net or .shop are not part of the 2026 authorized distribution.
- 2
Check the secure connection. Look for the padlock and https in your browser before you enter any details.
- 3
Match the batch. Compare the batch code printed on your physical bottle with the current batch shown on this page. They should match.
- 4
Use official contact only. Reach us through the email and phone published on this site. We will never ask for your full card number by email.
- 5
Confirm authorized checkout. Your payment should run through our encrypted, named checkout partner, not a random payment link.
- 6
Treat this portal as canonical. For documentation, the Certificate of Analysis, and any verification question, this site is the single source of truth.
Spotting a counterfeit
Because Zensulin is sold only here, any bottle you find on a marketplace like Amazon or eBay, or on the shelf at a pharmacy, did not come from us. Authentic Zensulin arrives in tamper-evident packaging with a clean, correctly spelled label and a batch code that matches this page. If the price looks too good, the label looks off, or the seller is anyone but this portal, treat it as suspect. When in doubt, take a photo and email our team before you use it.
Certificate of Analysis and documentation
The current batch, ZSN-26H1-0382, was screened by Birchgrove Analytical Laboratories, LLC, an ISO/IEC 17025 accredited laboratory, for identity and potency by UHPLC, heavy metals, and microbial safety. The Certificate of Analysis on file is BG-COA-2026-7741. You can read more about the testing we run on every batch on the quality and testing page.
Quick verification questions
Where is the batch code on my bottle?
It is printed near the bottom of the back label, usually beside the expiration date. It will match the format shown in the table above.
What if my batch code does not match?
Do not use the product. Contact our support team with a photo of the label and your order number, and we will sort it out.
Is the Certificate of Analysis the real lab report?
The COA reference identifies the third-party report for the current batch. The downloadable copy is a representative summary provided for transparency.
Learn about our testing process, read who we are, or order with confidence.