How should I apply this concealer for the best effect?
Apply it with the applicator to the areas you want to conceal, such as dark circles, blemishes, and uneven skin tone. Blend it using a sponge, brush, or your fingers. If you want, you can set it with powder to improve its staying power.

Is it really waterproof?
Yes, the formula is described as waterproof and long-lasting.

Does it dry out or feel heavy on the skin?
It contains glycerin to keep the skin comfortable and does not dry out excessively, especially when applied properly.

Will it crease under the eyes or on fine lines?
Like many liquid concealers, it's best to use a small amount, blend it well, and set it with a finely milled powder under the eyes to reduce creasing. (This is a general makeup tip, not specifically mentioned on the site.)

Is it safe for sensitive skin or the eye area?
The product is cruelty-free and paraben-free, with hydrating ingredients like glycerin. If your skin is sensitive, it's advisable to patch test first, particularly around the eye area.