I have been using this for years now, but I recently ran into this Mayo PT in my siggy which I've been doing for months now with fab results. I follow the recipe to a "T"! It is amazing and I have noticed the overall health of my hair getting much better and stronger. The mayonnaise treatment will restore moisture and vitality to your strands. Give it a try I am sure you will like it.
Mayonnaise contains eggs and oil, which add shine, body and strength to your hair, leaving it silky soft. My mother used mayo on my hair ever since I was a child without any problems however I was relaxed at that time so my hair needed the mayo treatment more often (relaxer strips protein from the hair).
I believe the reason people say that it strips the hair is because they are using it too frequently or are protein sensitive.