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Besides Being Curly, How Is African Natural Hair Different To Asian And Caucasian Hair

19/8/2015

 
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Check out Queen Elle's Hair Journey & Regimen
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Check out Queen Chiaka's Hair Journey & Regimen
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One of the most annoying questions I was ever asked was "Why do you (i.e. black people) need to have different products anyway? Why can't everyone just use the same products?" - what was annoying wasn't the questions itself but the fact that the person didn't even let me answer. They just continued talking and every time I interjected with "Can I answer your question?" They just talked over me and ignored me. I was still annoyed about 2 months after the incident! I know, that's ridiculous - other people's stupidity should never impact one's emotions like that.

Anyhow, if you cut through the hair strand of someone with naturally straight hair you would find that the cross-section is round. Curly hair on the other hand has a flattened oval or elliptical cross section, this however is only one difference. It is the feature that gives our hair it's very curly shape.

In addition, African/African-American hair:
  • Tends to contain much lower levels of cysteic acid than other hair types - this means it's hydrophilic (much more water-loving), has a higher pH and a more negative charge
  • It tends to have lower levels of "bonded lipids" and this makes our hair more oil-loving!
  • The kinks in our hair are points of weakness so it is weaker. The average black hair will break after 33 grams of strain when wet; that figure is 43 grams for Caucasian hair and 63 grams for Asian hair. Dry hair can take more strain than wet hair, it will break after about 100 grams for Asian hair.
  • It tends to be drier - as we all know!
  • The cuticle layer is also a little different. Black hair's cuticle is composed of 7 to 11 layers (on average); that figure is 4-7 for Caucasian hair and 11+ for Asian hair. 

The fewer the number of layer the more chemicals can be used to change the hair - so a person with a 7-layer cuticle will take chemicals more easily than a person with an 11-layer cuticle; remember those people who complain that their hair just doesn't take relaxer? They probably have a thicker cuticle layer. 

That said, flatter (elliptical) hair strands are easier to treat with chemicals so black hair may ultimately be easier to chemically manipulate. 


In summary, besides the curl that you see, different hair types have varied structural and chemical features that impact how products work with the hair. This is why different hair types needs slightly different products.
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When should you do an ACV or Lemon Rinse? Before or After A Shampoo and Condition?

25/6/2013

 
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I know some people do a rinse before shampooing but really it is much more effective to do after conditioning but before applying a leave-in conditioner.

Why?

The reason is simple: both lemon and ACV are acidic. This means that they cause the cuticle layer to contract and flatten. A flattened cuticle layer is closed to the entry of moisture and other products so if you plan on doing a deep condition after the ACV or lemon rinse, you're working against it.

For an effective deep condition you want the cuticle to be more open and to ensure this this you shouldn't be rinsing with something acidic just beforehand.

Once you've done your deep condition and rinsed off the conditioner the ACV or lemon rinse (or whatever other acidic rinse you choose) will close the cuticle layer thereby:

  • Boosting hair's shine
  • Reducing frizziness
  • Making hair less porous so that you retain moisture better and 
  • It will not work against the deep conditioner

You can further rinse the ACV or lemon rinse with cold water to get any smell off. As the acidic rinse has already done its job of sealing the cuticle layer this follow-on cold water rinse is NOT counter productive.

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You might also like:
  • Lemon Rinse Recipe for Natural Hair. Boost Shine, Reduce Frizz, Define Curls
  • The Advanced Shine Boosting Apple Cider Vinegar (ACV) Rinse

Could your hair be drying out because your shampoo and conditioner are not compatible?

28/11/2012

 
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Shampoos are generally formulated as mildly acidic with a pH ranging from 4 to 6.

The corresponding conditioner is then formulated to be more acidic with a pH ranging from 3.5 to 5.0.

Why does this matter for your hair?

As pH falls hair constricts and becomes less porous, i.e. your hair retains moisture much better and is shinier. This means that as you clean your hair, the lower the pH of the final product used in the process, the better your hair cuticle is sealed off.

What if you don't want to use a shampoo and conditioner in the same line?

There are a couple of simple solutions:
  • Either check that the pH of your conditioner is lower by getting pH paper or
  • Rinse conditioner out with cool water. Cool water also helps to flatten and close of the hair cuticle

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Reference: 
Science of Black Hair page 46

What is the pH of your natural hair vegetable oils?

17/11/2012

 
PictureVegetable oils have low acidity
So, you've just learnt that healthy hair has a pH of 4.0 to 5.5 and you're frantically trying to figure out the pH of your: 

> argan oil / avocado oil / castor oil / coconut oil / flaxseed oil / grapeseed oil / jojoba oil / olive oil / sesame oil / sunflower oil / sweet almond oil or something else

I have news...

The acidity or alkalinity of oils cannot be measured using pH because they do not contain any water. pH can only be determined for water soluble liquids because it measures the hydrogen concentration in an aqueous solution.

That said, most vegetables oils are weakly acidic. Olive oil is alkaline (the most alkaline of vegetable oils); flaxseed and canola/rapeseed oil are also alkaline. Another methodology, not pH, is used to determine this.

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You might also like:
What is the pH of healthy natural hair? Why does it matter?
What happens to natural hair at different pH levels?


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What happens to natural hair at different pH levels?

15/11/2012

 
pH is a measure of how acidic or alkaline a substance is:
  • The pH scale runs from 0 to 14; 7 is neutral
  • As pH falls below 7 acidity increases 
  • Hair has low/medium acidity, it's pH ranges from 4 to 5.5
  • As pH rises above 7 alkalinity increases
  • Note that a fall in pH from 5 to 4 represents a 10-fold rise in acidity and a fall from 5 to 3 is a 100-fold rise in acidity; the same is true for alkalinity, i.e. pH = 9 is 100 times more alkaline as pH = 7

Hair is not tolerant to extremes of pH, this is what happens to it as pH changes:
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pH and natural hair by Neno Natural
You might also like:
What is the pH of healthy natural hair? Why does it matter?
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What is the pH of healthy natural hair? Why does it matter?

9/11/2012

 
pH measures how acidic or alkaline a substance (usually a liquid) is. Healthy hair and skin both have a pH ranging from 4.0 to 5.5 (this is acidic).

This film of acid that covers skin is called the acid mantle; it acts as a barrier to undesirable toxins, viruses and bacteria that try to enter the body. As most of these contaminants are alkaline they are neutralised by the body's acid mantle. Put simply, the scalp's acidity protects it from infection.
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What is the pH of shampoos?
Shampoos are normally mildly acidic with a pH of 4 to 6.

What is the pH of conditioners?
Conditioners are normally more acidic than shampoos with a pH of 3.5 to 5.0.

Is the decrease in pH as we move from shampoo to conditioner intentional?
Yes. The lower pH of the final product used in the cleaning process helps to seal off the hair; sealing the hair means fibres are smoothed down and moisture is held in better.

What does this mean for your hair regimen?
It is much better to use products in the same product line as they are designed with this fall in pH from initial to final product in mind. 
For example, the shampoo of one brand may have a pH of 4.5 and the conditioner 3.5 meaning that your hair is properly sealed off. But if you then go and use a conditioner of another brand whose pH is 5.0, this sealing off process won't happen properly.

If you want to mix brands get pH paper to make sure that the pH falls as you move from the first product in the cleaning process to the final one.
What is the pH of relaxer and permanent hair colouring agents?
They are all alkaline with a pH ranging from 10 to 13.

What is the consequence of using these strongly alkaline products in hair?
PictureCross-section of hair
  • The hair cuticle is lifted resulting in drier hair and a loss in shine
  • The lifted cuticle exposes the cortex of hair making it weaker and more vulnerable to breakage.

You might also like:
What happens to hair at different pH levels?

Reference: The Science of Black Hair, pages 44-45

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    I now blog about wealth creation - so if you have any money questions meet me there, you can do all sorts of cool things like leave me a voicemail.
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    By Heather Katsonga-Woodward

    I was a natural hair blogger and mixtress living between London & Chicago from 2012 to 2017. I always thought I was 4C but some say 4B; images below - you decide! Heather xx

    p.s. I now blog about wealth and personal finance on my personal website.

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