I began using this after seeing a story about it in a fashion magazine where Linda Evangelista was talking about it. I bought it then as I had some fine lines and lots of melasma. I was WOWed and hooked right away. I have had melasma (dark spots) since I was a teenager (51 now) and have tried everything in the book including expensive RX treatments not covered by insurance. The regular formula erasa took care of those in weeks. I used that for lots and lots of years and LOVED the result of the product but did not love the texture often layering it under smoother feeling lotions (I do NOT wear foundation) until they began making the product with spf. I still use both but use the spf product EVERY DAY mixed with a tiny bit of lunimous drug store lotion. I get compliments all of the time on my skin and have even been asked over and over by my dermatologist what products I use. For me, this is an excellent product and one tub of the spf lotion lasts me 2months ish. Love, Love, Love and highly reccomend!