I purchased the 30 ml Regentiv Specialist Serum after reading a recent magazine review. Usually I don't make purchases on the basis of magazine advertising, however this product was recommended for all types of skin issues, and having tried a wide range of things in the past for mild acne and acne scarring, I thought I had nothing to lose as I was getting really frustrated with the lack of long-term solutions. Product was well-packaged & delivered promptly, and in my view, it is worth every penny. After just one week of using the serum on my face, I noticed a huge difference; scars began to visibly fade, my skin looked brighter and healthier, and also felt softer and less irritated, as it often has done with adult acne. Now, having used the product for about 6 weeks, my adult breakouts of acne have ceased completely; I've had no new spots since using the serum, and previous scarring is now barely noticeable. I couldn't be happier with the results, and feel so much more confident without needing heavy make-up to cover up blemishes.