I've heard a lot of hype around this product online, and I can honestly say that it is all true. I found this serum to be very hydrating and lightweight, while still moisturizing and protecting my skin. I think this serum would be good for warm or cold weather depending on your skin type. There is no sticky feeling after it dries down and it does a great job at calming my irritated skin. Purito is a great brand and so far I haven't tried a product of theirs that I didn't like. Overall great, versatile product.