"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Amanda Kahn, MD, is New York’s ...

More Americans are injecting themselves with unapproved chemicals that are pitched as ways to build muscle, rejuvenate skin and extend life, the latest example of the nation's fascination with ...

TB-500, and copper peptide to build muscle, rejuvenate skin, and boost longevity. But do they work and are they safe?

Americans are injecting themselves with unproven peptides sold by influencers and RFK Jr. allies WASHINGTON (AP) — More Americans are injecting themselves with unapproved chemicals that are pitched as ...

Every cell in the body makes both RNA and peptides. But what emerges here is not just a story about molecules, but about ...

WASHINGTON (AP) — More Americans are injecting themselves with unapproved chemicals that are pitched as ways to build muscle, rejuvenate skin and extend life, the latest example of the nation’s ...

Peptide injections are soaring in popularity for fitness and longevity. They're marketed as a "natural" supplement for muscle-building, fat loss, recovery, and more. The FDA has been cracking down on ...

WASHINGTON (AP) — More Americans are injecting themselves with unapproved chemicals that are pitched as ways to build muscle, rejuvenate skin and extend life, the latest example of the nation’s ...