Dallas has a question: What is the pH of Soft and Beautiful texture softener for kids and is it ok to use on my six year old hair which is so hard to manage she is African American 100%.
The Left Brain has an answer: 
The Right Brain has blogged before about the chemistry of relaxers and how they work. They all contain some kind of caustic material that reacts with and reshapes the proteins bonds in your hair. The Soft and Beautiful product is a “no lye” relaxer because it’s based on calcium hydroxide and guanadine carbonate instead of sodium hydroxide. Also, in order to work properly, relaxers must function at a high pH. (Soft and Beautiful has a pH of about 13.) However, the pH is not the critical factor to consider in terms of damage, it’s the concentration of the active ingredients.
Because of their reactivity, all relaxers can be dangerous if they are not used properly. But at least the Soft and Beautiful uses a lower active level than a standard relaxer so it has a milder relaxation effect that is designed for softening the texture of children’s hair. Therefore, it should be ok to use on your daughter’s hair as long as you follow the instructions carefully. I can’t emphasize this point enough: if you leave the relaxer on your hair too long, it can cause increased hair breakage and scalp irritation. Write back and let me know how your daughter’s hair turns out.
What do YOU think? Does the need to relax children’s hair outweigh the risks of exposing them to potentially dangerous chemicals? Leave a comment and share your concerns with the rest of the Beauty Brains community.
译文:
对孩子们来说soft and beautiful牌直发膏是安全的吗??
多勒士提出了一个问题：适合小孩子的Soft and Beautiful牌软发剂酸碱度是多少？这些东西能用在我纯非裔美国血统的六岁孩子那难搞得头发上吗？
我们的左脑可以给这个问题一个解答：
我们的右脑对自发膏的化学成分以及工作原理知根知底.它们都含有某种腐蚀性物质能与我i们头发中的营养结合物发生反应并使之重组.温和而包装精美的产品因为由氢化钙及碳酸胍取代了氰化钠而成为无碘直发膏.除此而外,为保证效果明显,直发膏必须在高ph的环境下发挥作用.(温和美丽直发膏有高达13的 ph值)然而,ph并不是导致头发损伤的关键因素.它是活跃成分的浓度表现.
正因为它们会和头发营养物发生反应,在不正当的使用情况下所有的直发膏都是危险的.但至少 使用了比标准直发膏要低的活跃点因此它有更温和的软化性,专门为软化孩子头发组织而设计.因此,只要你认真遵照说明书,在你女儿头发上使用这种直发膏是完全可以的.但是我一定要强调这一点,如果你让直发膏在头发上停留时间过长的话,将会引起头发及头皮损伤.请给我回信让我知道你女儿头发怎么样了.