"It's still a little early to be definitive, but this seems to be helping, especially with stretch marks. I don't use it twice a day as suggested....usually once daily during the past 3 weeks. The kit certainly wouldn't last the full 8 weeks it says is required to see the best results. It's pretty pricey for the small amount of product you get...it would go very quickly if used twice a day. I'm already out of the serum just applying it once a day. I'd like to see a nice ecomony size of that made available to purchase separately. Anyway, the results haven't been astounding, but I'm encouraged enough to buy this again, and continue on with it for a while."