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Influencers are promoting peptides for better health. What does the science say?

WBUR
Published February 25, 2026 at 8:58 AM PST

Wellness influencers are pushing injectable peptides for better health, fitness, sleep and more. Does the evidence back them up?

Sarah Boden reports.

This article was originally published on WBUR.org.

Copyright 2026 WBUR