★★★★★
A couple winters ago, I had terribly dry lips and dry, cracking elbows that led to dark, purple blotchy eczema on both elbows that quickly spread up my arms onto my chest. A dermatologist gave me 4 prescriptions that I never filled. I read that dry lips could be a Vitamin B deficiency, so I went to GNC, got a $6 bottle of 100mg (I believe), it was 100mg or 100UI, I just know it was a small gray bottle, and it was $6 hard white tablets. I took one a day, and my cracked lips cleared up in 2 days, the purple blotchy eczema cleared up in about a week, and never came back, even though I stopped taking the Vitamin B6 tablets about a week after it cleared up.