Supercharged with an oil-soluble derivative of vitamin C (the Ascorbyl Tetraisopalmitate that gives this treatment its title) The Ordinary’s Ascorbyl Tetraisopalmitate Solution 20% in Vitamin F offers … Sold by Stone Wall Shields and ships from Amazon Fulfillment. I’m currently using The Ordinary Ascorbyl Tetraisopalmitate Solution 20% + Vitamin F as my morning vit C serum. Ascorbyl tetraisopalmitate is an oil-soluble and extremely stable derivative of vitamin C. It is provided in this oil format formula in combination with vitamin F, also known as essential fatty acids. The Ordinary. I have seen a noticeable change in my skin’s texture & it’s really helped lighten my acne scaring/ … Ascorbyl Tetraisopalmitate Solution 20% in Vitamin F is a Skin changing vitamin oil! Hi! This item: The Ordinary Ascorbyl Tetraisopalmitate Solution 20% in Vitamin F 30ml $23.16 In Stock. Aside from the general benefits of pure vitamin C, ascorbyl … I combine it with the Ordinary HA since it’s super watery. I don’t really think it’s doing much …