porous = longer drying time?

candibaby said:
I dont know if this has been brought up before, but I've been thinking about something. Now I know some of my hair was porous from color that I had last year, and my hair would take FOREVER to dry, even when I sat under the dryer it still took 2 or more hours unless I was rollersetting, then maybe an hour if I was lucky.

Today I used Porosity Control Conditioner because my stylist told me about when we talked about hair porosity. Today my hair dried in NO TIME. I didnt even rollerset it, just wrapped it, and it usually takes SO long for me to dry my hair in a wrap. But nope, I was out of there after like 35 minutes. I was like :eek: is this the twilight zone?

I know porous hair holds on to water for dear life..
so do you think that there is a connection between porous hair and longer drying times?


Based on my experience yes. At first I was worried that my hair was thinning because it usually takes a long time for my hair to dry. But ever since using products that brings the porosity level in my hair to normal, my hair takes about 30 minutes with a blowdryer.
 
EDTA, I posted this in another thread a while back:

I don't think your hair has to be relaxed, permed, or colored to be porous. So if your hair is porous it is for you. Here is some info I found on the web:

http://www.haircoloradvisor.com/faq/glossary.html
Porous: The ability of hair to absorb color and moisture. Porous hair absorbs color faster and drabber. Rejects warm tones and absorbs like a sponge. Overly porous hair tangles easily and has lack of shine.


http://www.clairol.co.uk/Inside_Scoop211.jsp
Porosity and Healthy Hair

The porosity of your hair helps you decide what haircare and styling products are best for you. If hair is too porous, it will absorb too much liquid, which often indicates damage to the hair cuticle, cortex, or both. Choose haircare products that correct over-porous hair, such as Herbal Essences and Daily Defense Conditioner.


http://www.infusium.com/hair101/anatomy.asp
Porosity:
· Ability of hair to absorb moisture.
Seven Reasons for Over-Porous Hair:
1 Permanent wave
2 Relaxer/Straightener
3 Extremely damaged hair (improper/over styling)
4 Very long hair
5 Color-treated hair (excessive or misuse of haircoloring products)
6 Over-processed hair (over-lightened or frosted)
7 Over exposure to sun, water (chlorine)


http://www.substance.com/hn/haircare/article/0,,217360,00.html

In addition, some hair is more porous and will quickly soak up whatever you put on it, as well as the humidity in the air. If your hair gets frizzy on muggy days and flat on very dry ones, it's probably porous. Coarse hair is often porous, as is any hair that has been permed, straightened, permanently colored or otherwise damaged.


http://www.verticalsinhair.com/test.shtml
Porosity Test
Test the porosity of your hair. In order to test accurately for porosity, use three different areas: front hairline, in front of ears, and near the crown. Grasp small strands of dry hair and comb smoothly. Hold the ends firmly with the thumb and index finger of one hand and slide the fingers of the other hand from the ends towards the scalp. If the fingers do not slide easily, or if the hair ruffles up as your fingers slide down the stand, the hair is porous.
The more ruffles formed, the more porous is the hair. The less ruffles formed, the less porous is the hair. If the fingers slide easily and no ruffles are formed, the cuticle layer lays close to the hair shaft. This type of hair is least porous, is most resistant and will require a longer processing time.


http://hair.lifetips.com/TipSC.asp__Q__id__E__6009
Porosity of hair is the ability of the hair to absorb liquid or moisture. It is important when doing any sort of chemical treatment that the hair is not overly porous as it can soak up the chemicals too quickly and damage the hair. Also, if the hair does not have the same porosity over the entire head, some areas will process too fast. An easy test for porosity is to take a lock of hair and let it float on water for two minutes. If it floats, the outer layer is healthy. If it sinks, the outer layer is too open and will allow chemicals to absorb too quickly. Don´t process with any chemicals until treated with the proper reconstructors.


http://www.pg.com/science/haircare/hair_twh_34.htm

Porosity

In a normal, undamaged hair shaft, very little water can get either into or out of the cortex. This is because the cuticle covering the cortex is intact, and is then almost (but not quite) waterproof. Shampoos do not damage the cuticle. When hair is permed or tinted, however, the chemicals have to penetrate the cortex in order to react with the keratin inside it. Increasing the temperature, or applying an alkaline lotion, separates the scales of the cuticle enough to allow the chemicals to pass through. After the processing is finished the scales gradually close up again.

But if hair is processed too many times the cuticle scales may never return to their original tightness and the protection they once offered is lost. The cuticle can also be damaged in the same way by too much blow drying, curling irons that are too hot, and the effects of wind and sun. The hair becomes increasingly porous, and water can then pass in and out of the cortex.

Over-porous hair is dry, and tends to develop split ends. The damaged cuticle is fragile, and the damage worsens as time goes by. The greater the damage, the more the cortex swells with water whenever the hair is washed, but the more water it loses when it dries. The repeated wetting and drying of the cortex gradually weakens the hair.
 
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