This is probably one of my favorite serums ($33.99, target.com), ever. From the moment I put it on my face, it instantly looks more hydrated. Serums are very important for your skincare routine. Think of it as a dense shot of nutrients for your face. I’ve used many serums with hyaluronic acid (and several that are more expensive than this one), but I find this one to be the best. Again, if you aren’t thinking of purchasing the whole system, even though this is the most “expensive” product in the line, it’s worth it!