Restylane is a line of hyaluronic acid–based facial fillers that help smooth wrinkles and plump your cheeks and lips. Hyaluronic acid occurs naturally in our skin, especially in connective tissue.

Juvéderm and Restylane are two types of dermal fillers used for the treatment of wrinkles. Both injections use a gel made with hyaluronic acid to plump up the skin. These are noninvasive procedures.

In San Diego, two people fell gravely ill after receiving black-market silicone injections to plump up their faces. In Salinas, Calif., a woman died after receiving a supposed Botox injection that was ...