• Prompted by readers’ search queries, Snopes found at least five different URLs apparently promoting a dietary supplement for managing blood sugar levels called Circupulse. However, none of the websites actually sold Circupulse supplements as of Aug. 26, 2025. Circupulse supplements were available on online marketplaces such as Amazon, but appeared to be sold under different brand names on each marketplace. 
  • One of the Circupulse websites was merely a customer support page for the product. The others included buy links for one of two similar supplements, Gluco6 or GlucoTonic.
  • The websites and products displayed many red flags suggestive of shady behavior by the retailers. Scammers commonly sell phony or even dangerous dietary supplements. Therefore consumers should be cautious before buying any supplement marketed with manipulative tactics or incredible, too-good-to-be-true claims.

In August 2025, readers searched the Snopes website for information on Circupulse, an apparent dietary supplement formulated to help manage blood sugar levels. We decided to look into the product to see if it was legitimate.

We found five different websites containing “circupulse” in the URL. As of Aug. 26, 2025, none of them actually sold a dietary supplement called Circupulse.

One of the websites, circupulsebloodsupport.com, appeared to have once sold supplements but was no more than a single contact page by the time Snopes researched it. The terms and conditions of the website referred to orders of two, three or five bottles, and said ordering with the initial discount enrolled customers into a subscription service.

An AARP article on fake supplement scams warned that scammers may try to make customers pay for a several-month supply upfront or require customers to sign up for a subscription when they intend only to make a one-time purchase.

The other four websites appeared to promote Circupulse in the text, only to include buy links for other brands of dietary supplement products. Three — circupulse.org, en-circupulse.com and circupulse.us — took people to a page for a supplement called Gluco6, while circupulse-co.us took people to a page for GlucoTonic.

Both Gluco6 and GlucoTonic pushed people to order a multimonth supply of the product, and the returns pages of both websites told people to direct returns to the same warehouse address in Aurora, Colorado.

The websites for both products included a number of other red flags. Gluco6’s website was formatted as a phony article that claimed the product treated a condition, “Glut-4 Overwhelm,” that does not exist. It used countdowns to create a false sense of urgency for people to act. Both websites made claims about how the benefits of the supplement that sounded too good to be true, another red flag highlighted by the AARP. Additionally, the AARP warned that that it’s a red flag if the website sells just one product, which was the case for both of the products found through the Circupulse websites.

Some online marketplaces, such as Amazon, eBay and Vitamin Place, sold supplements labeled as Circupulse as of this writing. However, the company supposedly selling Circupulse was different on each marketplace. On Amazon it was Livorka, on Ebay it was Sigma Times and on Vitamin Place it was Fyvus.

The FDA and FTC have issued warnings about dietary supplement scams many times in the past. Some of these supplements, which are often billed as “all-natural,” include dangerous unlisted ingredients, such as those usually found in prescription drugs. When it comes to supplements, it’s best to buy from trusted brands and pharmacies, and to speak to a healthcare professional before trying something new to treat a health issue.