I can't really speak for fat reducion yet, i've used this for only 2 weeks now. Slim Extreme 3D - Spa (Intensively Slimming and Firming Serum) is absolutely amazing on stretch marks, I noticed reduction within the first few days of using the cream twice a day! They're recent marks as they're due to pregnancy (30kg were gained on an otherwise 52kg body) and baby is only 3 months. If I'd realise I'd have taken before and after photos, but improvement is already exceptional! In 2 weeks I have also lost 1cm all around, but as I am exercising for regaining my shape, I can't say it's only due to the serum.
All in all a brilliant product, leaving the skin smooth as anything. Will recommend to others, and looks like i may not have to undergo a course of Eporex or mesotherapy.