banana! I have yet to try a Kadalys product I haven’t liked. Kadaly’s Organic Pink Oil Banana Glow Booster Serum is another great product in the line. It is called a serum and an Oil. To me it is an Oil and should be used as an Oil. Though it says you can layer moisturizer on top of it, I’m not sure the actives like Retinols would seep through? You need very little of this product for majorly hydrated skin. I live in humid Miami and was able to layer makeup on top of it. I’m excited to bring this up north on vacation to fight the dry winter weather. It is designed to fight aging, free radicles, and uneven skin tone. I enjoy the scent, and love the color. I love that it is clinically tested as well as vegan, organic, paraben free and cruelty free. Remember two drops does the job. It’s easy to go to heavy with this.