treadstone said:
Is the conditioner mainly for a cosmetic/feel good aspect? I used to use the T/Gel conditioner but I generally don't find Nizoral or T/Gel really drying on my hair so I stopped using conditioner altogether.
Here is some definitions and the top two in bold are the best reasons in my opinion.
HAIR CONDITIONERS
What is a " Hair Conditioner"?
The term " hair conditioner" is vague. Hair conditioners fall into different groups according to what you want to accomplish with your hair. People with thin hair need a specific kind of "conditioner", people with thick, dry hair need another...
Conditioners fall into six major categories:
Moisturizers
Reconstructors
Acidifiers
Detanglers
Glossers
Oils (E.F.A.'s- essential fatty acids)
Moisturizers
Are concentrated with humectants. Humectants are compounds that attract and hold moisture into the hair. They may not necessarily contain botanicals or protein (they often do).
Reconstructors
Normally contain protein. Hydrolyzed human hair keratin protein is the best source, because it contains all 19 amino acids found in the hair. Human hair keratin protein has a low molecular weight. This enables the it to penetrate the hair shaft (the cortex). The main purpose of a reconstructor is to strengthen the hair.
Acidifiers
The key word here is "acid". Yes, is is good to put acid on your hair. When a product carries a pH of 2.5 to 3.5 it is normally termed an acidifier. This pH will close (compact) the cuticle layer of the hair. The result is shiny, bouncy hair. This pH range will adjust the beta bonds to alpha bonds (hydrogen bonds). Acidifiers do not weigh the hair. They do create shine, and add elasticity. This category is great for people with fine textured hair.
Detanglers
Most detanglers are acidifiers (see above). Most have low pH's 2.5 to 3.5. They close the cuticle of the hair which cause tangles. Some "shield" the hair shaft with polymers (polymers are strings of "like" molecules- a chain). Some detanglers are instant, some take 1-5 minutes to work.
Glossers
For the most part glossers are cosmetic. Most Glossers contain dimethicone or cyclomethicone ( very light oils derived from silicone). Used in small amounts they reflect light. Also, they are one of the best products to control the "frizzies."
Oils (E.F.A.'s)
If you have dry hair (esp. if you have chemicals on your hair color-perm-relaxer} you need to add oil to your hair. The scalp produces a natural oil called sebum. EFA's are the closest thing to natural sebum (sebum contain EFA'S). EFA's can take very dry and porous hair and transform it into soft pliable hair.
http://www.salonweb.com/pro/conditioner.htm