The Eggs in the mayo give this treatment its protein packed fuel, plus the oils make for silky soft hair that's ready to grow. Recipe: Get your hair dump - just dump, not soaking - with warm water, then basically just rub the mayo into your scalp and down to the ends of your hair. Use as much or as little as you want. Once done, either use a shower cap or some plastic wrap to cover your head - that traps the heat, so the mayo will really get in there and penetrate. Let it set for 20 minutes or so ( it's really up to you), then wash it out with a gentle shampoo, or a shampoo that has been diluted. Give this a go and leave a comment below how this went for you :-)