It came at a perfect time and literally saved my skin. I had accidentally overused a strong retinol I have; one I only use once a week but ended up using twice in one week. My skin was extremely sensitive, dry, peeling and shedding skin. I then, of course, overused manual exfoliating products, which did not help with the sensitivity. I used the Barrier Restore Serum twice a day for 5 days. I used two pumps and massaged into my skin. It is so soothing and healing and the consistency is lightweight. By the 6th day my skin was back to normal, no sensitivity or irritation and I was able to use my acids again.