C5 Super Boost Moisturizer

I was skeptical about vitamin C because past formulas stung my face, but this one sinks in without any irritation and my skin tone looks more even after three weeks. The 5% concentration feels like the sweet spot, and it keeps my face from feeling tight even in dry office air all day.

My skin has been looking noticeably brighter since I started using this, and the 5% vitamin C hasn't caused any of the redness or stinging I've dealt with from other serums. The texture is rich but sinks in fast, and it genuinely keeps my face feeling moisturized through the whole workday.

The 24-hour hydration claim actually holds up—my face still feels plump at 8pm after applying it once in the morning. The 5% vitamin C hasn't caused any stinging either, which is a huge win for my sensitive skin.