Truly one of the best HA serums I have ever used, these drops of goodness has good slip over the skin and absorbs quickly without tackiness or pilling. Most importantly, it really hydrates deeply, puffing up some of my deeper creases like crazy. I have yet to try it this way but have a feeling that I could use it as a spot treatment over my makeup if my wrinkles need to be reinflated. But the cost... sure, you get what you pay for and this is a high quality product, but there are less expensive options available if your goal is to simply rehydrate. They may be a bit stickier or lack other qualities this one has, but it might just be worth the price. Time will tell, but if the results I am experiencing continue or get better, then I've just found my HG and will have to purchase regular. Note - my bottle came from a subscription box.