sticky and non absorbent [SEP] application of vitamin c serum to my face twice a day is a routine i carry out without fail i have tried numerous brands of vitamin c sera usually combined with hyaluronic acid for hydration effects when this vitamin c serum from premium nature was offered as a lightning deal i jumped at a chance to test out yet another brandan immediate problem i encountered was a shattered glass dropper upon receipt of the item please see photos resulting in a potentially dangerous situation not to be fazed i poured the serum into another clean amber glass bottle and commenced using the productno other vitamin c serum i have tried has been as sticky and gooey as this product no matter how much or how little of this serum i apply it remains glistening on the surface of my skin for hours when i apply sunscreen on top of this serum the sunscreen too appears not to be absorbed which i find disturbingas a child i used to read cereal boxes to entertain myself during breakfast nowadays my reading material gravitates toward ingredient lists as a biochemist a published complete list of ingredients in any biochemical product fascinates me i wish this serum s ingredient list were more informative to that end i wish the first listed ingredient were not a vague organic herbal infusion there are four features i do like about this serum natural cruelty free gmo free paraben made and bottled in the affordable the clarity of the serum suggests that it has not oxidized into an ineffective productdespite an intense dislike for the texture of the serum and its non absorbent characteristics i religiously applied this product twice a day for the past months unfortunately i have not observed a decrease in the number or depth of the lines on my skin in that time frame