Why Some Scientists Are Worried About the Peptide Boom
Peptide researcher Joshua Kritzer explains why promising mouse studies and online testimonials aren't enough to prove a treatment is safe — or effective
Jul 21, 2026
Sara Talpos is a science journalist based in Ann Arbor, MI. She is a contributing editor at Undark Magazine.
Peptide researcher Joshua Kritzer explains why promising mouse studies and online testimonials aren't enough to prove a treatment is safe — or effective
Jul 21, 2026The heavily marketed memory supplement has faced years of scrutiny over its science. It still became one of the best-known brain health products in America.
May 7, 2026We think it’s invaluable — and hope you agree. Our work is made possible by donations from readers like you.
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