LA Times Studios may earn commission from purchases made through our links. If you continually chase every so-called “miracle” ingredient (retinol, vitamin C, hyaluronic acid), you’re not alone.

For many years, certain cutting-edge skin care has only been accessible in office settings where injections, lasers and other equally hostile-sounding treatments are doled out exclusively by medical ...

The intricate regulation of skeletal muscle mass and regeneration involves a network of growth and differentiation factors that orchestrate cellular proliferation, differentiation and repair. Central ...