Formaldehyde is harmful to hair, nails and all health, and can even cause cancer and therefore its use in cosmetics has been banned since 2009 after intense scientific research that proved that the substance was harmful to health, even when used in small concentrations.
When smoothing the hair with formalin, this may initially prove to be very effective, but after some time, the formalin makes the hair more porous, favoring its breakage and leaves the hair totally dull. Its use also increases the risk of developing cancer because it can alter the way the cells multiply. Therefore, those who want to straighten their hair should go to a good hairdressing salon, where the professional is qualified and experienced to ensure that the procedure has the expected result, without harming the health.
Here are some alternatives to How to Smooth Hair.
It is important that the hair straightening product is suitable for your hair type. To straighten curly hair, very curly, afro style, the ideal chemical is Sodium Hydroxide, which is an odorless product that can stay up to 30 minutes in the hair and needs a retouch at the root within approximately 6 months. Those who want to straighten hair that is curly, but not afro, should opt for ammonia thioglycolate, and those who have mixed hair and undefined curls and several senses of hair growth, should opt for Guanidine Hydroxide . They all give good results and do not contain formalin in their formula.
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