Because hair is dead, how come it lightens with sun exposure?
Probably has to do with pigment, but if you know for sure, than please speak up!
2007-03-14 05:36:44 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Medicine
I am a licensed Cosmetologist. The hair has what is called the cuticle and the cortex.
The cortex is where color cells are stored.
The cuticle is the outer layer of the hair. Under a microscope the cuticle looks like a series of scales or shingles on a roof.
When the sun warms this outer layer, the cuticle can "lift" and allow some of the color molecules to "escape". There is a much more detailed explaination, but, this is the gest.
This is why when you color your hair with artificial color, it fades more in the warmer weather than in the cooler or cold months.
And yes, hair is dead.
It is the follicle inside the scalp that is alive and feeds and grows on blood.
The hair strand itself is not alive once it leaves the scalp.
However, this does not mean that it is not effected by outside influences.
Heat styling, chemical services, water, wind, rain, pretty much everything can effect it's overall "health".
So if you are in the sun alot, then a good daily conditioner and a weekly "deep conditioning" are recommended to keep the hair soft and free of breakage.
That is pretty much it.
2007-03-14 05:59:47 · answer #1 · answered by Harley Girl 3 · 1⤊ 0⤋
there's a shampoo by way of pantene proV noted as Blonde (or silver) Expressions, it has a easy coloring result that's healthy to apply and could slowly lighten your hair. My buddy used it to alter her sea coast blonde hair right into some colorings off platinum, so it quite does artwork, it merely relies upon how long you you utilize it. The longer, the lighter. good success!
2016-10-02 02:48:20 · answer #2 · answered by ? 4 · 0⤊ 0⤋
you mean "then speak up"...
the sun breaks down the pigmentation of hair cells. the chemical composition and reactions are beyond my expertise.
lemon juice rubbed in hair increases the process when exposed to sunlight.
2007-03-14 05:44:38 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The Sunshine will lighten your hair, heat and sunlight.
Put lemon on hair and it will get even lighter.
2007-03-14 05:40:47 · answer #4 · answered by sunflare63 7 · 0⤊ 0⤋
i don't know for sure but some people said its bec of a chemical in the water of sea or a swimming pool
2007-03-14 05:45:12 · answer #5 · answered by music6490 2 · 0⤊ 0⤋
Is yours dead? Sorry... Mine is still alive...
I suppose it mimicres the colour of clothes that you wear in summer
2007-03-14 05:44:18 · answer #6 · answered by Vicky 1 · 0⤊ 1⤋