Jaquelines, I love the aphogee 2 min keratin. The protein in the eggs can just stay on the suface of the hair, can't penetrate it. In my personal experience makes my hair dull, straight (I am wavy) and heavy. Aphogee products have the kind of protein can penetrate the hair. I also use the hardcore 2 steps aphogee but not the regular way, I just mix 1 tablespoon of the stuff in my conditioner, stay 30 minutes and wash out. It is not so messy than eggs too.