Is this a regular essence-soaked sheet mask or a hydrogel mask?

It is a face-shaped hydrogel sheet with a gel-like, jelly consistency rather than a conventional sheet soaked in liquid essence. During prolonged wear, the sheet becomes transparent.

Can I use it for a shorter session, or does it have to stay on overnight?

You can choose either. Leave it on for 30–40 minutes for quick care, or wear it for at least 3 hours or overnight for intensive care. Remove it in the morning after overnight wear.

What should I do after removing the mask?

Gently pat the remaining essence into your face until it is absorbed.

Does the mask feel cooling when it is first applied?

Yes. The gel mask is described as providing an immediate cooling sensation on application.

Is it intended for sensitive skin?

It is intended for all skin types, including sensitive skin. Stop use if irritation or rash appears, as directed in the published precautions.

How many masks are in the box, and how much product is in each one?

The box contains four individually packed masks, with 37 g (1.30 oz.) in each mask.

Which collagen, peptide and moisturizing formula features are verified in this mask?

The formula contains 2,160,000 ppb of low-molecular collagen and nine named peptides. It also includes niacinamide, six forms of hyaluronic acid, four ceramides and panthenol.