Voices

Calls the craze unfounded. He found no randomized human trial showing the advertised benefits for any of the unapproved peptides he reviewed, and warns about stacking several at once. He points to animal work in which TB-500 sped up dormant tumor growth and to a theoretical cancer concern with growth-hormone peptides and BPC-157. He treats the GLP-1 drugs as the well-studied exception.

Source: Eric Topol, "The Peptide Craze", Jul 2025, Associated Press, Nov 2025

Pledged swift action against firms mass-marketing copycat semaglutide after a telehealth company tried to sell a compounded version of the Wegovy pill. FDA then sent 30 warning letters over misleading compounded GLP-1 claims.

Source: Fierce Pharma, 2026-03

After the MHRA raided an illegal factory making retatrutide and tirzepatide pens, he said such products are made with no regard for safety and urged people to avoid the black market.

Source: Euronews, 2025-10

Before the panel that reviewed emideltide and six other peptides, said a reputable advisory panel would normally exclude members with a financial stake in the outcome.

Source: HealthDay via MedicineNet, 2026-07

Responding to the push to let pharmacies compound peptides, pointed out that approved drugs reached the market by first establishing safety and efficacy.

Source: Bloomberg Law, Jul 2026

Noted that wide gray-market use of BPC-157 may undercut the incentive for drugmakers to run the trials that would show whether it works.

Source: STAT / Undark, Feb 2026

Said influencers and politics, not good science, drive peptide demand. Called a US advisory vote to ease compounding limits frustrating and hoped Health Canada would follow the science.

Source: CTV News via CP24, 2026-07

Told a pharmacy conference that the products are unapproved, so ingredients and long-term effects are unknown. Rated manufacturing and cold-chain problems as worse than with GLP-1 copies. Said mocking users does not change behaviour.

Source: Australian Pharmacist, Jul 2026

Dismissed the Enhanced Games as a circus act, not genuine sport.

Source: ABC News, 2026-05

Called unregulated injectable peptides frightening. Said many are sold as research-only products outside FDA oversight, with sweeping promises on muscle, healing and ageing and little real informed consent.

Source: Fox News, 2026-05

Said people microdosing semaglutide or tirzepatide are in effect test subjects, because neither the benefits nor the risks of very small doses have been studied.

Source: STAT, 2025-11

Designed a heart attack trial of thymosin beta-4 and is concerned about easing limits on a related fragment before trials finish, stressing that drugs can cause harm.

Source: KFF Health News via CSPI, 2026-10

Urged Australians to stay away from illegal peptides after reports of serious reactions. Called unapproved products a growing public health risk with little human testing and advised talking to a trusted health professional.

Source: newsGP, RACGP, 2026-06

Says semaglutide and tirzepatide work, but less than the media suggest. Criticises cosmetic use given stomach side effects, weight regain after stopping and unknown long-term effects, and puts prevention first.

Source: Altroconsumo, 2025-03