Well, my mom applies it, her smell is very strong and she has formaldehyde which is a negative point for her, because for those who do not know formaldehyde, it is a chemical very harmful to health, so strong that it can stop the decomposition of a body up to 5 days, now this chemical in keratin produces burning, itchy so much the scalp as in your eyes, and above all tears boots, you redden and to the days boots the leather of the skin, that makes the formalin and therefore this chemical has keratin, it is true that keratin can smooth the curly hair until this plover, but it should be noted that formaldehyde takes a while to leave the system as many women last up to 1 week if you wash your hair and set aside irritates more the skin and the bacteria of the environment settle in the hair, my breast has already applied 4 keratin but it does not fit like the first time, since the scalp is getting weaker and the scalp is so mistreated that has not It has a lot of effect like that of the first time, since keratin also most people apply it with wet hair and this superrrrr mall.

Hair surgery does not have formaldehyde, in fact, when applied, you do not feel any bad symptoms, rather it gives off an odor that if chocolate or fruit, depends on what you have chosen, hair surgery is made up of proteins, nutmeg, oils like of argan, coconut, almonds and chemicals that has the own shampoo to leave a manageable hair, the capillary surgery is hyper super less strong than the keratin, therefore I love it, it does not produce anything when applied to me, its effect lasts 3 months with its due maintenance, shampoo without salt and those little things of beauty that we use girls, this if you can use it every 3 months since it does not have formaldehyde, it is more natural, it helps to recover the hair from ultra violet rays and dyes and dyes .

Eye, in case many people buy hair surgery and when applied they give symptoms of itching and redness of the skin, the same as keratin, if that happens you are cheating keratin is a little cheaper than hair surgery, that's why When you buy capillary surgery, you see that they are very good brands, for example the Brazilian brands.

Now my experience, because I love hair surgery more, I have never had a horrible frizz again, in fact, sometimes I go very hard to the university with my hair wet and when drying naturally it seems as if I was ironed, I love it, Keratin leaves a smell like burned in your hair and always smells like that, so you apply creams, it will smell like that. The keratin is very similar to the drop but if difference is that the keratin has formaldehyde and the drop has sulfur.