I’m having great fun working with variations on Hyaluronic Acid this month. First, we met Oleo-HA (INCI: Sodium hyaluronate, hydrogenated castor oil, castor seed oil); now let’s meet Hyaluronic Acid 4D (INCI: Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Hydrolyzed Sodium Hyaluronate, Pentylene Glycol, Ethylhexylglycerin, Aqua), an ingredient I found at Lotioncrafter (USA). This is a…
