AMPOULES
Ampoules are highly concentrated active ingredients. They are popular in the K-beauty (especially in-treatments) technique called "sheet mask sandwiching."
Apply a sheet mask, and when it's still damp and not dry (about 10 mins later), lift it, apply an ampoule to your skin, and place the sheet mask back over your face.
Ampoules are used after toner and before or after essence, depending on the thickness. It is not necessary to use both an essence & ampoule.
TOV MEDICAL AESTHETICS
HEVATOX® Gold Ampoule 30mL (Topical Neuro-toxin) Retail $160
INNERNATURE