Is this a bottled essence or a sheet mask?

It’s an essence-soaked facial sheet mask, not a bottled leave-on essence.

At what point in my routine should I use the mask?

Use it after cleansing and toning.

How long should I leave the sheet on, and what should I do afterward?

Leave it on for 10–20 minutes. Remove the sheet, then gently pat the remaining essence into your skin until absorbed.

Does the remaining essence leave a sticky finish?

It’s designed to leave a fresh, non-sticky finish.

What skin types or concerns is it recommended for?

PyunkangYul recommends it for dry, fatigued, dull, rough or sensitive skin, including skin irritated by external stressors. The mask was also dermatologically tested and rated non-irritating.

Can I refrigerate the mask before applying it?

Yes. Refrigerate the mask before use if you’d like an optional cooling sensation.

Which forms of hyaluronic acid are listed in the formula?

The ingredient list names Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid and Hydrolyzed Sodium Hyaluronate.