Whitening care with IOPE Vitamin C Expert 40% Mask Concentrate

I was really worried about the freckles and blemishes that had spread widely horizontally from under my eyes to my cheeks. I have tried various types of Vitamin C cosmetics and whitening products many times, but they did not have any significant effect.
My skin is on the sensitive side and prone to breakouts, so changing cosmetics is not easy. In particular, applying high-concentration Vitamin C cream caused skin irritation, such as a stinging sensation, making it very difficult to use consistently.

I came across the IOPE Vitamin C Expert 40% Mask Concentrate, and I found it comfortable to use because it was gentle even on sensitive skin.

My skin is very dry, so I apply this product after applying a moisturizer several times, and I am using it without any tightness.

This product is a high-concentration cosmetic containing a whopping 40% pure Vitamin C and also provides antioxidant care.

I heard that the amount of vitamins that reach the skin from oral intake alone is small, so it seems that applying skin-beneficial ingredients directly also helps with skin whitening.
At first, I was worried that the 40% Vitamin C content might be too irritating. However, after using it, I found that it is gentle and helps with skin brightening and wrinkle improvement.

A major advantage of the IOPE Vitamin C Expert 40% Mask Concentrate is that it has a waterless formula, so its effectiveness is maintained for up to one year even after opening.

Since it is waterless, I personally use it well with a moisturizer.

I feel like my complexion has brightened a bit since using this product. When applied to the face, it adheres closely to the skin quickly and absorbs completely without any stickiness.