The Clarins Instant Concealer is a long-wearing and crease-free product that is designed to brighten, smooth, and conceal dark circles and imperfections. It is known for its lightweight and comfortable formula, which is said to be stay-put and crease-free, providing even, luminous, and flawless results that last. While the product has received positive feedback for its effectiveness, there are also comments about its discontinuation, as some users have found that their favorite shades have been discontinued. Unfortunately, there are no specific details available regarding the complete list of ingredients or materials used in the concealer.