I wanted to swap expensive medical grade products for something more wallet-friendly and got hooked on Medik8. I love how this tingles a bit on my face, it really feels like something is happening. I have a pretty deep frown line on my forehead that has become much less deep, I definitely think it's the ferulic acid that has fixed it! I don't know if I've noticed much with brightening effect on pigmentation, but I will continue to use it as just the feeling it leaves on my face is addictive!
I can add that I have sensitive skin that easily gets red, I get a little red first upon application, but it settles down, and I experience that it is more effect than "irritation".
