[product question] Kylie Jenner's stable form of Vitamin C

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Im skeptical of kylie jenner and her skincare range. HOWEVER, after looking at her ingredient lists her vitamin C uses tetrahexyldecyl ascorbate as the second ingredient, which is the highest quality vitamin C (most stable + effective). I've only ever found it in high end products such as sunday riley, PTR for $100+. I don't want to give kylie jenner money (lol) but damn! She's been advised well.Is this too good to be true? What do you guys think?Ingredients list:IngredientsWater/aqua/eau, tetrahexyldecyl ascorbate, glycerin, phenoxyethanol, carthamus tinctorius (safflower) seed oil, ammonium acryloyldimethyltaurate/vp copolymer, dipalmitoyl hydroxyproline, tocopheryl acetate, tetrasodium glutamate diacetate, carbomer, polysorbate 20, sodium metabisulfite, panthenol, ferulic acid, ethylhexylglycerin, sodium hydroxide, camellia sinensis leaf extract.
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Submitted by flight451