
Pulse is third-party lab-tested for purity and accuracy and certified by Labdoor™, meaning every batch is:
- Verified to meet or exceed strict FDA safety guidelines
- Rigorously tested to ensure it is free from heavy metals, microbes, allergens, and other contaminants
- Confirmed to contain exactly what is on the transparent label, with no proprietary blends or hidden ingredients
- Backed by lab testing results that are publicly shared here on our website for your verification
And all of this is verified by independent, accredited laboratories, not our marketing team.
Clinically Effective Ingredients and Doses
Supported by 467 peer-reviewed scientific studies
No Artificial Sweeteners, Flavors, or Dyes
Naturally sweetened, flavored, and colored
100% Money-Back Guarantee
You either love Pulse or you get a full refund
What Is Labdoor™ Certification?
Labdoor™ is a leader in independent analysis of supplements to assess their quality and safety.
They directly and anonymously purchase products from retail channels and utilize FDA-registered laboratories to rigorously test for label accuracy and purity.
For Legion, this certification means we can conclusively verify safety and efficacy for our customers. Specifically, this guarantees that our products:
- Meet or exceed strict FDA safety guidelines
- Are protecting you from dangerously high levels of toxins like lead, arsenic, and cadmium, which are found in some competing supplements
- Are rigorously tested for heavy metals, microbes, allergens, and other contaminants, ensuring they meet the strict purity standards set by the FDA
- Are backed by absolute transparency, as we publicly share these third-party lab testing results directly on our product pages for your verification
In short, Labdoor™’s independent verification is your assurance that you’re putting only the safest, most effective ingredients into your body—guaranteed.
Why Does Third-Party Testing Matter?
For better or worse, the FDA doesn’t review or approve dietary supplements before they hit store shelves. Unlike prescription drugs, supplements can be manufactured and sold without proving to anyone that what’s on the label is actually in the tub.
Therefore, a brand can print “lab-tested” on its packaging without ever analyzing a single batch to an outside lab. The FDA and FTC can step in after the fact to punish offenses, but enforcement is reactive and stretched thin, so by the time a problem is caught, the product has already been on shelves and in your body.
Some brands voluntarily pay for independent testing anyway, but most don’t because it’s expensive and, in some cases, would expose product deficiencies they’d rather keep quiet.
The gap shows.
Independent testing by consumer advocacy organizations has repeatedly found supplements containing less of a key ingredient than advertised, more than listed (which gets dangerous with stimulants), or contaminants like lead, arsenic, and cadmium above FDA safety thresholds.
That’s not a scare tactic—it’s a matter of public record. And it’s why we don’t ask you to take our word for it.
Every batch of Pulse goes to an independent, FDA-registered lab through Labdoor™, a third party that buys products anonymously off retail shelves, the same way you would. Then, they test whether the dose matches the label and whether the product is free of harmful contaminants, then publish the results for anyone to read.
The Bottom Line on Lab Testing
In the supplement industry, if a brand asks you to “just trust us bro,” don’t.
When you see the “Labdoor™ Certified” badge on Pulse, it’s there because it passed rigorous FDA-registered lab tests and has a public paper trail to prove it—not because our designer thought it looked nice on the label.
Frequently Asked Questions
How do I know Pulse is really third-party lab tested?
We publicly share the testing results of every batch.
What else makes Pulse different?
Beyond third-party lab testing, Pulse follows the same standards as the rest of Legion:
- We use clinically effective ingredients and doses backed by peer-reviewed scientific research.
- Our products are naturally sweetened and flavored with no artificial sweeteners, flavors, food dyes, fillers, or other unnecessary junk.
- Our products have clean and transparent labels that show exactly what’s in every serving and what’s not (there are no proprietary blends or hidden ingredients).
- Our products are made in the USA with globally sourced ingredients in NSF-certified, FDA-inspected, and cGMP-compliant facilities.
What if I still have doubts about the ingredients or my results?
We back our transparency and quality with a no-hassle, 100% Money-Back Guarantee that works like this:
If you are not completely satisfied with Pulse for any reason, contact us for a full refund—no questions asked and no return necessary.
New to Legion?
Third-party lab testing is one of many ways we do things differently.
- Clinically effective doses
- No artificial sweeteners, flavors, food dyes, or other unnecessary junk
- Full label transparency
- No proprietary blends
- Lab-tested for purity and potency

And that’s why over 1 million discerning fitness folk have chosen Legion and left us more than 55,000 5-star reviews.
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