intense defense serum

I used a generous sample of this serum every other night for about a month. It didn't cause irritation or clog my pores, but I also didn't see any other positive effects. This serum is too...

I should start out by saying that this is really a 2.5 star product for me. I have used a number of Epionce products, and the only one that I think stands out is the lytic lotion. This serum...