This serum did not give me any irritations at all and quickly absorbs into the skin. Benton recommends to apply 2 layers of this serum and I sometimes feel like it is still not enough (especially since the cooler months are coming up) despite applying my usual routine after. I think this serum will better for those with combination to oily skin. This bottle lasted me around 4 months. Overall, i did enjoy this serum but it wasn't the more moisturizing.