If you haven't already, you should read this thread.
http://www.longhaircareforum.com/ha...4746-hair-breakage-101-just-wanted-share.html
From ^^^^^^
Sealing in your Moisturizers:
Our hair naturally contains moisture, but because our hair is also naturally porous, keeping the moisture inside is a difficult task. Sources of outside moisture, or external moisture supplementation, are a must for black hair. Water molecules and moisture from these supplemental moisturizing products easily pass into the hair shaft, but they pass out just as easily. The moisture you apply needs to held in by something. Oil.
A light coating of oil on top will help seal the moisture inside. Oils are made of large molecules. These molecules are too large to absorbed by the hair strand. Applying oils to the hair and scalp will coat them and trap moisture that is inside on the inside and moisture that is outside on the outside. The key is to lock in the moisture within the strands with your oil. If you use oils without a moisturizer or before one, the oil will seal the moisture out of the hair strand and lead to eventual dryness. This technique of moisturizing and sealing has really been helpful to me and is a resonating hallmark of my regimen. Moisturizing success is all in the order in which you apply your products.
REMEMBER! Oils DO NOT Moisturize.
Perhaps a words like "nourish" would be better than moisturize. If I had a nickel for every time someone asked me to recommend a good oil that moisturizes, I would be rich! Oil alone will not and cannot moisturize within the hair shaft. An oil can only coat the outside of the strand, and give it shine- the illusion of moisture. Again, the molecules that make oil are much too large to penetrate through all of the cuticle layers. The cuticle layers can be as few as 6 layers or many as 15 or more layers thick. Oil molecules are hydro-phobic which means they repel and do not readily mix with water. Remember, if you apply an oil product to your hair before you have added a moisturizing product, you have created a seal on your hair strand that water and moisture cannot penetrate.
