I loved the full size products that I got so much, that I bought my 15 year old daughter her own set to try out as she suffers with hormonal forehead acne and dry skin. Her favourite product is the serum and I agree with her as is smells so good, is a lovely texture, absorbs quickly and provides moisture and soothing to the skin. I love all of the Some by Mi products so far. Skin changing in 30mdays? For me, I'm not,as I am using various combinations and haven't settled on any one method for my mature drier skin. She loves the set though and has seen improvement already, skin is settling after only 1 weeks use which is fabulous for her. She finds it much more hydrated and she definitely has a glow.