ProsAs someone who struggled with adult acne until my early 30s, I couldn't use nourishing creams, so I tried pretty much every serum and ampoule that was supposed to be good. I bought this product as a set with the Hydra B-5 Complex, which is said to enhance its hydrating effects. At the time, pure vitamin C stabilization technology wasn't as common as it is now, so despite many vitamin C products on the market, this was the only one that delivered pure vitamin C without mixing in other ingredients. That's why I used it without complaint, even though it was expensive. The product contains almost no preservatives, so you need to keep it in the fridge to maintain freshness. While it might sting slightly on areas with blemishes, it's not irritating. However, the solution has such low viscosity that if you don't spread it quickly, you risk wasting even a single drop of this expensive serum as it drips down your face. I remember always being on high alert when applying it.
ConsWhile the product itself isn't bad, there are so many cost-effective options these days that I'm giving it 3 stars. At 130,000 won (almost 200,000 won for the set with Hydra B-5!), it's definitely not a product I'd repurchase.
TipEven with refrigeration, if you don't use it quickly, it turns brown and becomes sticky. This means its effectiveness has decreased. Be careful.
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