FemmeFatale
Well-Known Member
or is leaving it on for a good amount of time (45 min to an hour) an ok substitute?
A few of the hair gurus suggest using heat for certain types of DCs. However, most instructions I have seen truly suggest simply adding more time to DC if and when you are not using heat. So heat for quicker penetration or longer time on hair without. Hope that's clear.
using heat is faster, and it makes me feel like I'm doing a salon treatment!
I mean you also have to remember, most of this crap isn't going to penetrate your hair anyway. All it does is sit on your hair and is washed away when you rinse or shampoo.
^^^I read this article and I'm not really sure how much I believe in it. If conditioners are made up of things that can't penetrate the hair shaft, then what exactly is being accomplished in 30 minutes?? To my knowledge, the only things that can penetrate the hair shaft are water and some oils, and possibly hydrolyzed protein. (The science must be over my head, maybe.)
I know for me, since I avoid heat, I DC with suranwrap and a wool cap (body heat) for 3 hours. I've experimented with different times and "3" is the magic number.
In school we learn that heat is used to swell up the cuticle and allow penetration of a product. The only time heat is not needed is after a relaxer because the cuticles are already open due to the alkaline base of the relaxer.
Using heat speeds up the process, but you can also abstain from using heat. After 30 minutes nothing is penetrating the hair shaft either way.
From Dr. Ali Syed's (the creator of Keracare) Website
HEAT
As the temperature of hair is increased, the greater the possibility of conditioners penetrating the cortex. As shown in Figure 1, penetration is much greater when hair is about 60-degrees centigrade than when it is at the normal environmental temperature of 25-degrees centigrade. A temperature of 60-degrees centigrade is easily achieved at the medium setting of an electric heat cap.
TIME
As the time of contact between hair and the conditioner increases, the degree of conditioner penetration into the cortex increases. As Figure 2 illustrates, the conditioning action continues to be productive up to 25-30 minutes. After that time, absorption reaches its maximum. It is safe, therefore, to conclude that conditioners should be left on the hair, with a plastic cap, for 25-30 minutes. The use of a hood dryer will enhance the conditioning effect.
You can read the whole article here:
The Right Way to Condition Hair (Part 1) - IN THE LAB, WITH DR. ALI SYED