In the Pilates studios of Los Angeles as well as behind the scenes of filming, the same word comes up between two selfies: peptides. On TikTok, hundreds of thousands of videos already show these injectable vials supposed to smooth the skin, refine the silhouette or relieve the joints.
For many celebrities, these peptide injections are in addition to supplements, vitamins and regular beauty treatments. BPC‑157, TB‑500 or GHK‑Cu are presented as antiaging allies, for hair recovery or growth, while GLP‑1 agonists such as Ozempic remain separate.
Why celebrities rely on peptide injections
Peptides are short chains of amino acids that act as small messengers in the body. In Hollywood and on Instagram, many combine them in peptide stacking, stacking BPC‑157 for tendons, TB‑500 for inflammation or GHK‑Cu for collagen. However, these molecules are not approved by Health Canada nor by the Food and Drug Administration in the United States.
For specialists, there is total uncertainty about their real effectiveness and their dosage. , worries David Chatenet, expert in peptide engineering cited by La Presse. He also recalls:
What Jennifer Aniston, Khloé Kardashian and Others Really Say
On the star side, Jennifer Aniston takes weekly peptide injections as a new anti-aging gesture, in addition to sport and a very supervised diet. She describes this technique as and entrusts to: . Actress Gwyneth Paltrow also discusses injectable peptides, which she associates with longevity, inflammation management and brain health.
Khloé Kardashian goes even further and declares: , according to an interview reported by . Hailey Bieber assures that peptides are at the heart of her Rhode brand and her routine, and other actors or singers talk about chaining injections or stacks to better recover, protect their joints or feel more efficient.
Peptide injections: what celebrity fans should keep in mind
For psychologist Stéphanie Léonard, before-and-after videos create an impressive group effect: , she explains in La Presse. She describes a body perceived as a project to be controlled, where each injection gives the impression of progressing towards well-being.
The doctors interviewed emphasize that these products have not been validated by large-scale clinical trials in humans. David Chatenet mentions the risks of allergic reactions, muscle paralysis or septicemia and insists that any injection of peptides remains the responsibility of a healthcare professional.
Which celebrities are talking about peptide injections?
Jennifer Aniston, Khloé Kardashian, Hailey Bieber and Gwyneth Paltrow all mention the use of peptides. Other artists, such as certain singers and action film actors, also talk about more recovery-oriented stacks.
Which peptides do the stars cite the most?
The names that come up most often are BPC-157, TB-500 and GHK-Cu. Some also talk about stacks nicknamed for muscle and joint recovery.
Are these peptide injections really safe?
Experts describe a lack of solid human studies and possible risks, especially in self-injection. They recommend only considering these products in a supervised medical setting, after discussion with a professional.
