What is an "active ingredient" in skincare and what does it actually do to your skin?

Many of us have stared at the packaging of a skincare product, wondering what that strange chemical word actually does. So here are a few of the most common active ingredients and what they do to your skin.

Imma Perfetto is a journalist at Cosmos Magazine and has an honours degree in Science Communication.

See omnystudio.com/listener for privacy information.