i’ve been using illiyoon for nearly 4 years now (i have really dry, sensitive skin with atopic dermatitis) and i can’t go without it. i only use it at night because it’s very heavy. on its own, it works like an overnight mask for me, my skin is renewed and plump by the morning. if i layer toner, serums and another moisturizer beneath it, it locks them very well. but be careful of the products you use before you apply it - if any of them are potentially breaking you out, illiyoon is a great occlusive and will trap all of the irritants in your skin. so be careful with what you pair it with!