Kiehl's Powerful-Strength Line-Reducing Concentrate is a best-selling preservative treatment from the brand that is beloved for its skin-brightening and anti-aging properties. The best features of the product can be attributed to Vitamin C, which helps to reduce the appearance of fine lines and wrinkles, as well as fight off free radicals and oxidative stress.
Previously, the Powerful-Strength Line-Reducing Concentrate formula included just 10.5% Vitamin C, but Kiehl's has revamped its product to include 12.5% stabilized vitamin C.
The new and improved formula promises to boost the radiance of skin, as well as minimize the look of pores over time for smoother skin. The formula is also infused with Hyaluronic Acid, which also plays a key part in reducing the appearance of fine lines and wrinkles and improving the skin's overall texture.