I love PCA products and have mild rosacea that worsens at times with redness on my cheeks and red bumps. I wanted this serum to work - but I used the entire bottle and saw no difference - and sometimes the serum stung a bit going on. I believe in giving all products - no matter what they are - 90 days to assess. So, I"m on my second bottle - and will determine if it's worth repurchasing. But I think my best bet is to invest in laser therapy for the redness - and no serum or cream has worked for me. The thing I do like about it - is that it gives some moisturization to my dry skin.