Introducing The New Skincare Product We Can't Get Enough Of

Designed by Meg O'Donnell.
If there was ever a season that calls for bright, radiant skin, it's summer. But while the sun might be shining (for now) that doesn't mean our complexions are doing the same, which is where the Kiehl's Powerful-Strength Line-Reducing Concentrate comes in. Armed with a mighty dose of vitamin C (12.5% to be exact), the serum has been reformulated to make it even more effective than before. That's right, vitamin C isn't just for staving off colds, and combined with the formula's two other hero ingredients – hydrating hyaluronic acid and glycerin – the concentrate is all about leaving skin smooth and glowing.
But how does it fare on different types of skin with various concerns? Four of the Refinery29 team gave the serum a try to find out exactly that. Read on to find out how we got on...

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