I registered just to thank you for posting your story. First, I had/have acne but never used anything but over the counter products. I had acne and just dealt with it. Finally, went to a licensed esthetician who put me on a vitamin c skincare plan. My acne was finally calmed but my skin was still oily and rough textured. Oily, orange peel like skin was what I was left with, even the esthetician was stumped. I was in my late 40's and just thought, "its just old age." So, I just bought heavier makeup and dealt with it. My skin was so oily, blotting paper didn't work - I had to use tissues and paper towels to blot the oil off my face.
Last week I went to a routine physical and my doctor simply said, "You're extremely Vitamin D deficient. Start taking about 1,000 units of vitamin D3 a day." I'm 53 now and worry about being/staying healthy. So I went out and got some Vitamin D3 (on sale at my local drugstore-buy 1,get 1 free). When I got home, I started searching the web about vitamin deficiencies - I stuck with professional sites like WebMD and Mayo Clinic. According to WebMD the upper safe range is 4,000 units a day. So I started taking 4,000 a day - just to get my levels up for my next physical.
After just four days I noticed that I didn't have to blot my face! I went out, did errands, then came home to do my exercises and
some household chores. After a day like that, usually my makeup has slide off from all the oil - but nothing. In fact, after doing my skincare routine, I noticed my pores appeared smaller/tighter and the rough texture along my cheeks was much smoother. After a month I'll try to post an update.
I did more web research but didn't find anything about vitamin D improving skin, until I widen my search from the professional sites. There really should be some research done in this area, especially in regards to young people. If just taking some supplements can improve not just health, but cure skin conditions, it would save a lot of money and angst for many teenagers/young adults.
Thank you for posting and good luck on your clearer, healthier skin.