Never buy a Vit. C product in a clear container

I really wanted to like this product, and have been using it as a toner/essence in my daily skincare regime twice a day, but I cannot honestly say I have noticed much of a difference. For the price, it is most definitely worth investing in something with more concentrated ingredients. Vitamin C in particular is unstable when exposed to UV light and breaks down very quickly, losing its effectiveness, in which case the clear packaging, though tinted, is less than ideal. Unfortunately, I did not know this, upon buying it.