This is a very lightweight serum with a pleasant consistency. It has no fragrance, which I love. You can wear this under makeup in the daytime. This is a water-based serum. I purchased this because I love algae. It's supposed to have minerals and be good for your skin. Other beneficial ingredients include niacinamide and eggplant, which is supposed to treat acne. It also has chamomile and centella asiatica for soothing. Centella Asiatica is also good for redness. The serum has three different types of hyaluronic acid, but only a small amount. They are of different molecular weight to ensure the HA is absorbed. This serum has silicone, which some people may not like. I didn't have problems though. My pores didn't get clogged or anything. The silicone is there to form a thin layer and prevent the moisture in the skin from evaporating. If you have oily but dehydrated skin, this just might be the serum for you. If you have dry skin or severely dehydrated skin you will need something else. For dry skin, I recommend something with more occlusives like jojoba or squalane oils. This serum is for people that need more water for their skin, rather than oil. Ingredients by Function Anti-acne: Niacinamide Antioxidant: Centella Asiatica Extract, Portulaca Oleracea Extract, Chamomilla Recutita (Matricaria) Flower Extract, Curcuma Longa (Turmeric) Root Extract Cell-communicating ingredient: Niacinamide, Adenosine Skin brightening: Niacinamide, Curcuma Longa (Turmeric) Root Extract Skin-identical ingredient: Glycerin, Sodium Hyaluronate Soothing: Centella Asiatica Extract, Portulaca Oleracea Extract, Chamomilla Recutita (Matricaria) Flower Extract, Curcuma Longa (Turmeric) Root Extract Show all ingredients by function Other Ingredients Antioxidant: Hydroxyacetophenone Buffering: Tromethamine Emollient: Cyclopentasiloxane, Cyclohexasiloxane, Hydrogenated Ethylhexyl Olivate, Cyclomethicone, Glyceryl Stearate, Stearyl Alcohol, Cetyl Ethylhexanoate, Arachidyl Alcohol, Behenyl Alcohol, Hydrogenated Lecithin, Hydrogenated Olive Oil Unsaponifiables, Aloe Barbadensis Flower Extract Emulsifying: Polyglyceryl-2 Stearate, Glyceryl Stearate, Stearyl Alcohol, Polyglyceryl-4 Oleate, Arachidyl Glucoside, Hydrogenated Lecithin Moisturizer/humectant: Niacinamide, Trehalose, Butylene Glycol, Glycerin, Centella Asiatica Extract, Erythritol, Mesembryanthemum Crystallinum Extract, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Acetylated Hyaluronate Perfuming: Curcuma Longa (Turmeric) Root Extract Preservative: Ethylhexylglycerin Solvent: Water, Methylpropanediol, 1,2-Hexanediol, Cyclopentasiloxane, Cyclohexasiloxane, Butylene Glycol Surfactant/cleansing: Stearyl Alcohol, Arachidyl Glucoside Viscosity controlling: Vinyl Dimethicone, Stearyl Alcohol, Arachidyl Alcohol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Behenyl Alcohol, Xanthan Gum