This had to be sent to me twice, the first time the top of the bottle exploded, which must have been a common problem because the second had the dropper housed separately from the bottle. It gave off a loud hiss as I opened it, similar to when I open a soft drink, and the texture has a fizzy quality to it too.
I can describe this product in one word - powerful. When you pat it into your face you know that you are putting an active on, and I usually felt a mild tingly sensation during application. I did see results - areas of pigmentation have lightened, and overall my skin has brightened, it delivers.
It has a thin and watery texture, and like other vitamin C products, it tends to oxidise quickly. But I raced through mine so it wasn’t a problem.