Vinegar Vs Lemon Juice.. The Irritated Scalp Malarkey

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Posted by Dee on June 26, 2004 at 14:56:16:

I've heard about.. & seen a few people on here, mention that if they
mix vinegar with their henna, it seems to irritate their scalp.. but
it's fine with lemon juice..

I'm by no means a chemical genius (far from it.. I hated chemistry
at school.. all those years back! :op ), but this 'Vinegar
situation' has been bugging me, so I set about researching it..

To start with, consider this..
If you chew on a lemon, or drink lemon juice, it's very sour, but
generally doesn't burn your mouth..
If you drink vinegar (or eat crisps/chips, with lots of vonegar in
them), you get a slight burning sensation in your mouth.

Lemon juice generally has a ph of around 2 to 3.. vinegar's ph is
usually around 4. So lemon juice is more acidic that vinegar.. BUT
the acids in the two different subsatnces are not the same.

Lemon juice, as we know, contains citric acid. Even when the juice
is bottled, it's still fairly fresh.

Vinegar can be made from fruits, or anything containing sugar.
To make these fruits (or whatever) into vinegar, it has to go
through two fermentation processes..
The first process is brought about by the action of yeasts, which
change natural sugars to alcohol under controlled conditions. This
is called the alcoholic fermentation.
The second process results from the action of a group of bacteria
(“Acetobacter”) upon the alcohol portion, converting it to acid.
This is the acetic, or acid fermentation that forms vinegar.

Therefore, vinegar (acetic acid) is a different type of acid to
lemon juice (citric acid)..

Obviously dilute acetic acid (vinegar) is safe to ingest, but
concentrated acetic acid is corrosive and can cause skin burns. But
then, so can concentrated citric acid..

Could the different type of acis, in vinegar, be the reason that it
can have a harsh effect on the scalp?

I don't know about everyone else.. but I think I've confused myself
good & proper!! lol

The Wytchery

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Re: Vinegar Vs Lemon Juice.. The Irritated Scalp Malarkey Natasha 00:15:27 6/27/2004 (0)

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: I've heard about.. & seen a few people on here, mention that if they : mix vinegar with their henna, it seems to irritate their scalp.. but : it's fine with lemon juice.. : : I'm by no means a chemical genius (far from it.. I hated chemistry : at school.. all those years back! :op ), but this 'Vinegar : situation' has been bugging me, so I set about researching it.. : : To start with, consider this.. : If you chew on a lemon, or drink lemon juice, it's very sour, but : generally doesn't burn your mouth.. : If you drink vinegar (or eat crisps/chips, with lots of vonegar in : them), you get a slight burning sensation in your mouth. : : Lemon juice generally has a ph of around 2 to 3.. vinegar's ph is : usually around 4. So lemon juice is more acidic that vinegar.. BUT : the acids in the two different subsatnces are not the same. : : Lemon juice, as we know, contains citric acid. Even when the juice : is bottled, it's still fairly fresh. : : Vinegar can be made from fruits, or anything containing sugar. : To make these fruits (or whatever) into vinegar, it has to go : through two fermentation processes.. : The first process is brought about by the action of yeasts, which : change natural sugars to alcohol under controlled conditions. This : is called the alcoholic fermentation. : The second process results from the action of a group of bacteria : (“Acetobacter”) upon the alcohol portion, converting it to acid. : This is the acetic, or acid fermentation that forms vinegar. : : Therefore, vinegar (acetic acid) is a different type of acid to : lemon juice (citric acid).. : : Obviously dilute acetic acid (vinegar) is safe to ingest, but : concentrated acetic acid is corrosive and can cause skin burns. But : then, so can concentrated citric acid.. : : Could the different type of acis, in vinegar, be the reason that it : can have a harsh effect on the scalp? : : I don't know about everyone else.. but I think I've confused myself : good & proper!! lol
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