What kind of vitamin C does it contain, and how strong is it?

It contains ascorbic acid at 150,000 ppm, equivalent to 15% vitamin C.

Does this ampoule contain spicules, and what are they intended to do?

Yes. Its Vita Booster Shot feature combines VITA KEEPER technology with 99%-purity micro-spicules and is described as 300 spicule shots. The spicules are intended to gently refine the skin's surface and support active-ingredient absorption. Mild tingling or prickling may occur during use.

Where does the ampoule fit in my routine, and what should I apply afterward?

Use it at night after cleansing and toner. Massage or roll it over your skin until absorbed, press with your palms, then follow with a face cream.

How often should I start using it?

Begin at night 1–2 times weekly, then gradually increase to no more than 3–4 times weekly.

What is the texture and finish like?

It has an emulsion-type essence texture that absorbs quickly and leaves a moisturized-looking glow without a sticky residue.

Which skin types is it intended for?

Official listings specify all skin types, including sensitive skin. Because the formula contains spicules, do not apply it around the eyes or on wounded or damaged skin.

Does the formula contain essential oils or listed fragrance allergens?

Yes. The declaration includes orange flower, litsea cubeba fruit, grapefruit peel, bergamot fruit and spearmint leaf oils, along with limonene, linalool and citral.

Should the ampoule be refrigerated?

Official market directions differ before opening: the Korean page recommends refrigeration before and after opening, while the Polish page specifies room temperature before opening and refrigeration afterward. Both direct refrigerated storage after opening.