Health authorities in France and Quebec are warning against the use of illegal peptide injections promoted by influencers on TikTok and Instagram [1, 3].
These warnings come as a response to a growing trend where social media personalities market unverified substances as miracle cures. Because these products bypass regulatory scrutiny, users risk severe health complications from substances that have not undergone scientific evaluation [2, 4].
In France, the National Agency for the Safety of Medicines and Health Products (ANSM) issued an alert regarding products sold through informal online channels. A spokesperson for the ANSM said that peptides sold on social networks have not been evaluated by health authorities and can lead to serious health problems [2].
Similar concerns have surfaced in Canada. The Collège des médecins du Québec (CMQ) said it is "concerned" by the promotion of these illegal molecules to patients, particularly among young people [3].
Influencers from the U.S. and Europe have seen a notable increase in promoting these "stacks" since the beginning of 2026 [1]. The marketing focuses on rapid results, such as improved skin quality, increased energy, and significant weight loss. One influencer cited in reports said they lost 30 pounds in a single month using these peptides, while noting that the risks remain unknown [4].
Despite the promises of quick transformations, medical professionals emphasize that the benefits of these specific online-marketed peptides have never been proven [1]. The lack of oversight means there is no guarantee regarding the purity, dosage, or safety of the injections being distributed via social media platforms [2].
“Peptides sold on social networks have not been evaluated by health authorities and can lead to serious health problems.”
The rise of peptide promotion highlights a growing gap between social media influence and medical regulation. By framing pharmaceutical-grade substances as wellness 'hacks,' influencers are bypassing traditional healthcare gateways, leading young consumers to self-administer potent biological molecules without professional supervision or clinical data.
