Do our scalps not produce enough Sebum?

It seems that I have zero sebum in my scalp. It is extremely dry and does not look that shiny unless its in the sun. My brother on the other hand has wavy/straight hair and his hair is shining 24/7. He has very oily and a lot of sebum. It seems that curly hair people do not produce enough sebum, and thus we have a dry scalp.

Is conditioning and using products the only way to up the sebum production?
I don't think it's that the scalp produces less sebum, I think it's that it has a harder time reaching the rest of the strand because it's curly and coiled. Straight hair is a sort of straight trip down, so it looks shinier.

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I don't think it's that the scalp produces less sebum, I think it's that it has a harder time reaching the rest of the strand because it's curly and coiled. Straight hair is a sort of straight trip down, so it looks shinier.
Originally Posted by asleep to audio
Hmm so would that make our hair less healthy if we didnt use products as opposed to straight hair people who dont need to use products and still have shiny hair?
I don't think it's that the scalp produces less sebum, I think it's that it has a harder time reaching the rest of the strand because it's curly and coiled. Straight hair is a sort of straight trip down, so it looks shinier.
Originally Posted by asleep to audio
Hmm so would that make our hair less healthy if we didnt use products as opposed to straight hair people who dont need to use products and still have shiny hair?
Originally Posted by jedimindtricks
Yep. That's partially why curly hair needs more moisture.

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I don't think it's that the scalp produces less sebum, I think it's that it has a harder time reaching the rest of the strand because it's curly and coiled. Straight hair is a sort of straight trip down, so it looks shinier.
Originally Posted by asleep to audio
Hmm so would that make our hair less healthy if we didnt use products as opposed to straight hair people who dont need to use products and still have shiny hair?
Originally Posted by jedimindtricks
Yep. That's partially why curly hair needs more moisture.
Originally Posted by asleep to audio
Man, curly hair gets annoying to take care of. If we dont use the right products and the right amount, it can look awful. But it we treat it right, it looks better than anything out there.
I don't think it's that the scalp produces less sebum, I think it's that it has a harder time reaching the rest of the strand because it's curly and coiled. Straight hair is a sort of straight trip down, so it looks shinier.
Originally Posted by asleep to audio
Hmm so would that make our hair less healthy if we didnt use products as opposed to straight hair people who dont need to use products and still have shiny hair?
Originally Posted by jedimindtricks
Yep. That's partially why curly hair needs more moisture.
Originally Posted by asleep to audio
Man, curly hair gets annoying to take care of. If we dont use the right products and the right amount, it can look awful. But it we treat it right, it looks better than anything out there.
Originally Posted by jedimindtricks
That would be the story of curlie's lives...well put.

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everyone produces more or less the same amount of sebum. How much is on your head and your body depends on how often you bathe.

When the oils (sebum) travel down a straight hair shaft it looks smooth and shiny. Oils have a difficult time traveling down a curly hair shaft.
everyone produces more or less the same amount of sebum. How much is on your head and your body depends on how often you bathe.

When the oils (sebum) travel down a straight hair shaft it looks smooth and shiny. Oils have a difficult time traveling down a curly hair shaft.
Originally Posted by keikok
wouldnt it be how often you shampoo? because bathing and rinsing with water doesnt get rid of the sebum, right?
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everyone produces more or less the same amount of sebum. How much is on your head and your body depends on how often you bathe.

When the oils (sebum) travel down a straight hair shaft it looks smooth and shiny. Oils have a difficult time traveling down a curly hair shaft.
Originally Posted by keikok
wouldnt it be how often you shampoo? because bathing and rinsing with water doesnt get rid of the sebum, right?
Originally Posted by jedimindtricks
Actually no, warm water is enough to clear the sebum from the skin
what seriously? Warm water actually clears sebum?
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Yes, warm water removes oil and dirt without irritating skin. When a molecule like oil is heated up, it breaks apart.
Yes, warm water removes oil and dirt without irritating skin. When a molecule like oil is heated up, it breaks apart.
Originally Posted by keikok
Thats why my hair is always dry and frizzy. So how do i just keep the sebum in my scalp? or is that bad? because sebum looks like it put shine to my hair and holds the curl together.
Please take some of mine - I have more than enough :-)

Although I must admit, since going CG my hair's been way less "sebumy" than before.
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Yes, warm water removes oil and dirt without irritating skin. When a molecule like oil is heated up, it breaks apart.
Originally Posted by keikok
Thats why my hair is always dry and frizzy. So how do i just keep the sebum in my scalp? or is that bad? because sebum looks like it put shine to my hair and holds the curl together.
Originally Posted by jedimindtricks
Unfortunately sebum has bacteria in it and sometimes smells bad. That's why it at least should be rinsed with warm water.
CG (curly girl or guy) means that you dont shampoo your hair, shampooing takes away EVERYTHING bad oils(bacteria) good oils (shine). If you didnt wash your hair for a while or only washed it with cold water, yes it would look shinier, but I dont think its worth it.
Yes, warm water removes oil and dirt without irritating skin. When a molecule like oil is heated up, it breaks apart.
Originally Posted by keikok
It may melt or become slightly more soluble, but it doesn't break apart.
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Yes, warm water removes oil and dirt without irritating skin. When a molecule like oil is heated up, it breaks apart.
Originally Posted by keikok
It may melt or become slightly more soluble, but it doesn't break apart.
Originally Posted by tycho19
when something changes phase the atoms move further apart
In her CG Book, LM talks to a doctor, Dr. David Kingsley, about why curly hair is drier. (see p. 14). Per this doctor, each hair follicle houses an oil gland. Curly haired folks have about 100,000 hairs on their head vs. straight haired folks have about 120,000 hairs on there head.

So, if he is correct, generally, straight haired folks DO have more oil because they have more hair follicles.

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I don't think everyone produces more or less the same amount of sebum-simply because some people have oily scalps and some don't. Like Brio, I have heard that curlyhaired people generally produce less sebum, though I'm not sure if it was for the same reasons put forward by Dr. Kingsley.

However, it all varies. I know several people with naturally *very* straight hair that can do very well with washing their hair just once or twice a week. They do not have stinky/greasy/weighed down hair *at all*.

I have very curly hair and while I prefer to wash mine 2-3 times a week, pre-CG I mostly washed it once a week and it never smelled, I never had scalp build up from sebum, or anything. On the flipside, I've seen people with hair just as curly as mine, and just as dry as mine, too, that have to wash *everyday*, sometimes twice a day, because of the amount of grease their scalp produces.
I don't think everyone produces more or less the same amount of sebum-simply because some people have oily scalps and some don't. Like Brio, I have heard that curlyhaired people generally produce less sebum, though I'm not sure if it was for the same reasons put forward by Dr. Kingsley.
Originally Posted by jeamaria
Agreed. My scalp is very dry and I'm curly, sis's scalp is oily and she's a wavy, DH's scalp is very very oily and he's a straighty with very thin and sparce hair (balding). I only have to wash/rinse every 4-5 days, sis can't go over 2-3, dh has to shampoo daily or he's a greaseball.

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