skeptical [SEP] ok sooo i don t know about this one clear vitamin c means it is potent but having an ingredient list that potency is no longer so upon seeing clear thick serum i was skeptical soon as i opened the bottle i added several drops to a small old bottle i own and left it open exposing to air lights and anything else that causes oxidizing to the vitamin c it stayed clear after one week straight no changes i even popped into the microwave for seconds still clear had it contained ferulic acid i would have been less skeptic because fa is a vitamin c stabilizer on its own vitamin c l absorbic acid is unstable and begins to oxidize once the seal is broken yes even pure vitamin c in water it will turn a slight yellow and begin to darkenbut my skin did not break out a good thing even if it doesn t contain vitamin c the other ingredients are a plus especially glycerin as the second ingredient which is a natural humectant anti microbial and antiviral all meaning moisturized skin that won t get clogged and controls acne i do get acne thank the skin gurus but i do chemical exfoliate with acids and use a retinol two things that cause dry skin if i should break out from a product then it is pure trash and the ph is way offso it has it pluses and minuses