“Though scientific evidence is lacking, gold is thought to have powerful antioxidant, anti-inflammatory, and antibacterial properties,” says Dr. Peterson Pierre, a dermatologist with the Pierre Skin Care Institute in Westlake Village, California.

Some makers of gold beauty products claim that gold flecks warm your skin to help with circulation. But most gold skin products are made with colloidal gold. These are nanoparticles suspended in liquid that are tiny enough to penetrate your skin.

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