Hi JB13,
Well, let me share the enlightenment that I have recently obtained in the book, DMSO Nature's Healer, by Dr. Morton Walker. In the book, on page 51 he writes:
"Certain fair-skinned people such as those with red or blond hair and blue eyes are more sensitive to DMSO. For them, the topical, oral, or intravenous concentrations should be 50 percent or less, particularly around the face and neck."
I hope that helps,
Scott
From Kerri's book:
The ultimate ignorance is the rejection of something you know nothing about and refuse to investigate.
~ Dr. Wayne Dyer