For more information about hair porosity:
http://www.hairfinder.com/hairquestions/hairporosity.htm
SlantedEyez is dead on with this. If your hair is VERY porous no amount of deep conditioning or moisturizing will fix the dryness. The dryness is a result of the hair cuticle not being smooth. Afro hair is very prone to jagged cuticles. I just discovered this last week. I have been deep conditioning/cowashing for weeks and my hair would feel like a brillo pad a few hours later. Hot oil treatments definitely helped but my hair still wasn't "moisturized". So I starting reading about and evaluating my hair's cuticle. The shaft was smooth but the ends were jagged and rough. So this is what I did last week:
1. I clarified with a mix of baking soda and Nexxus Therrape shampoo.
2. I deep conditioned with a mix of BedHead Mega Vitamins conditioner/Terax(moisurizing conditioner)/BedHead ChocolateHead(protein conditioner) under a heating cap for 30 minutes.
3. Warm water rinse.
4. Apply Nexxus Ensure and Vitale Positive Conditioner for 5 minutes--and I made sure my ends were well coated. Cool rinsed this out.
5. Applied my leave(Rusk Brillance)
6. Seal with a nickel/quarter amount of castor oil/shea butter mix.
First, thing I noticed was how "coily" my hair was. I have 4a/b more b for sure so some times my hair has no real curl pattern--that wasnt the case post porosity treatment. Also, my hair was touchable soft four days later--THAT NEVER HAPPENS!!
I am so glad to see this post--I was trying to figure out how to tell the ladies with chronic dry hair to PLEASE try a porous hair check. It could save you alot of breakage and wasted money on products---it doesn't matter how "moisturizing" a product is if your hair is overly porous. The hair cuticle must be closed to retain moisture and the hair needs to be ph-balanced for that to happen. Also please make sure to "impart moisture" aka use a leave-in post washing and then "seal" aka use some kind of sealant (silicone or oil) to trap the moisture in your hair.
RECAP:
Check hair porousness(is that a word?) rough hair=porous hair. Use an acidify rinse/conditioner to correct this.
Impart moisture with leave in conditioners
Seal hair with sealants or some kind of oil
Try Roux Porosity Control conditioner, your hair might be over porous......basically no matter what you use to moisturize your hair, it's not getting moisturize.....so I would suggest using this conditioner for a while after you shampoo or conditioner wash(which ever one u do), and then use the conditioner and see if there is a difference......keep using moisturizing conditioners and moisturizers, but don't forget your balance with protein, try to even it out....sistaslick should have an article on porous hair and balancing your moisture and protein in your hair......HTH......