This is a lovely, clean product but definitely not an acne cure....at least that was the case with me. If you have fairly decent skin, this product will do just fine. It has a fresh, clean smell and I like that it's not loaded with a lot of harmful ingredients. Effectiveness I believe Tea tree is very effective in curing many a skin condition; ranging from spots, rashes, bites through to greasy skin. This may very well be the case, but in my experience it wasn't very effective in helping with adult cystic and hormonal acne. I think I was ambitious in thinking I'd suddenly wake up with beautiful, clear skin. The main difference I saw was my skin becoming a little less greasy. Ease of Application In my life I've gone through many skin treatments and so this was very straight forward to use. The instructions are in plain English, easy enough for everyone to understand. Convenience This product posed no inconvenience in the way you apply it at all. Side Effects I experienced no side effects whatsoever. My skin was left smelling gorgeous and squeaky clean.