HYM and DIABHYM: Mexico’s COFEPRIS warns of counterfeits

On May 25, 2026, Mexico’s COFEPRIS warned that HYM and DIABHYM, labeled as dietary supplements, are counterfeit products. Its finding relied on technical and documentary information from OLNATURA, S.A. de C.V. The company said it does not recognize these products, identified unauthorized use of its brand, and reported that it has not manufactured them since 2020. [1][2]

What the alert establishes

This is more than a labeling concern. The manufacturer told COFEPRIS that it does not recognize HYM or DIABHYM and that its brand was used without authorization; the regulator consequently identified the products as counterfeit. Its warning says not to buy or use them in any presentation, lot, or expiry date. [1]

Why safety cannot be assumed

COFEPRIS says the products’ origin, manufacturing, storage and distribution conditions, and raw materials are unknown. Their safety, quality, and effectiveness therefore cannot be guaranteed. This is not something a buyer can resolve by checking a dose at home: the product’s identity and production history are not reliably established. [1]

What the alert does not establish

The alert does not publish a chemical analysis identifying hidden pharmaceutical ingredients, and it does not say that insulin or another drug was detected. It gives no price and does not describe sales calls or expensive courses. The supported conclusion is clear: Mexico’s regulator classifies HYM and DIABHYM as counterfeit and advises people not to buy or use them. [1][2]

What to do

• Do not buy or use HYM or DIABHYM, regardless of presentation, lot number, or expiry date. That is COFEPRIS’s explicit advice. [1]
• If you have used the product or given it to someone else, stop using it and consult a health professional for an assessment. [1]
• If you see an offer in Mexico, save the URL, label photos, and seller details, then report it through COFEPRIS’s sanitary complaint channel. [1]

Our conclusion

We do not recommend HYM or DIABHYM. COFEPRIS identifies them as counterfeit based on information from OLNATURA and says their origin, production, storage, distribution, and raw materials are unknown. There is no sound reason to risk a product whose identity and quality cannot be verified.