Serum.

"This serum has grape water, grape flour extract, and grape skin extract, along with centella leaf extract, red algae extract, lactobacillus ferment filtrate, chondrus crispus extract, hydrolyzed hyaluronic acid, and tea extract, and it doesn't have fragrance. My understanding is the resveratrol is predominant in the grape skin, but to what extent you're actually getting much resveratrol from this product, that's at least the more evidence based compound, and to what extent these three ingredients are really delivering potent levels of those antioxidants, it's hard to say. Probably it's potentially very very low. It's $185 for one ounce, which is absurd, and I will not be buying it."