by skin type
(Ad ❌) you can find the right item fitting your skin, once you understand the principle of home care item and purchase. There are many kinds of hifi, also many ultrasonic items.So you must understand the principles and be able to decide by yourself which one is needed for you. I brought 6 items that I have used from beginning of this year and are effective from my criteria. I hope this will help a bit your right purchasing of home care items.🙂