
I like using concentrated essences lately. Korean brand It's Skin has a wide range of essences in their assortment. I have blogged about their essence collection in one of my previous blogposts and I reviewed the CO Effector (collagen) before. As some of you might know, I wasn't really amazed by it. But each essence is different, so today I'm reviewing the Power 10 Formula YE Effector (yeast extract). Is it disappointing or not? Keep on reading if you want to know more about this product.

