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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What is the pH of healthy natural hair? Why does it matter?
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By Heather Katsonga-Woodward