So what I am going to do is use the article I read years go to guide this post. Im cheating a bit but Ive referred a few people to this post through out the years, why not stick with what works! You can read the whole thing here, but I am going to pullout the key factors from "The Science Of Black Hair" that I have used and know to be facts. I also added some notes in black and bolded some key points! Enjoy!
For black hair in particular, hair breakage is typically a result of an imbalance of important forces within the hair strand: moisture and protein levels.
Moisture
Hair needs water to maintain its elasticity, or ability to stretch. Since water is the ultimate moisturizer, water-based products are best for really getting the greatest moisture benefit.
Moisturizers are simply products that are water-based and nourish your hair deep within the strand. Products with moisturizing properties tend to be your conditioners and other specific moisturizer sprays or creams. Moisturizers may also contain large amounts of protein, but these protein based moisturizers do not have the moisturizing benefit that moisture-based moisturizers have. Check labels to gauge protein content. Good moisturizers will not contain cheap, filler ingredients like petrolatum, mineral oil, or lanolin (very good point). Avoid products that claim moisturizing benefits and contain these ingredients. There is nothing moisturizing about them! Petrolatum and mineral oil are sealants that seal out the precious moisture our hair needs. (Mineral Oil can actually clog your scalp pores and stunt growth and block good moisturizing properties, from absorbing into hair shaft. Another reason you should stay away from Oil Sheen. Its actually very harmful to your hair)
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. Providing additional sources of outside moisture, or external moisture supplementation, is a must for black hair care. 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.
Natural oils like jojoba, olive, carrot, or coconut oil (a miracle oil in my eyes) seem to work best. (Avocado i my favorite and helps with frizziness)
A light coating of oil after your daily moisturizer 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 the moisture that is inside on the inside and the moisture that is outside on the outside. The key is to use the oil to "lock in the moisture." If you use oils without a moisturizer or before one, the oil will seal the moisture out of the hair strand and lead to a coated feel and eventual dryness. This technique of moisturizing and sealing has really been helpful to me and is a resonating hallmark of my regimen. Fighting hair breakage and achieving moisturizing success is all in the order in which you apply your products. (For those of you that wear straight styles, try a drop of jojoba as a sealant. the other oils are heavy and will weigh your hair down.)
REMEMBER! Oils DO NOT Moisturize
Perhaps a words like "nourish" would be better than moisturize. Oil alone will not and cannot moisturize within the hair shaft. An oil (grease) can only coat the outside of the strand, and give it shine- the illusion of moisture. Oil molecules are hydrophobic 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.
Protein
Protein is what gives the hair its strength and structure. Hair is about 70% keratin protein by nature. There are a wide variety of proteins that serve different functions and roles in hair care. Some enhance elasticity, while others reduce it. These proteins bind to the hair cuticle and help temporarily rebuild any weakened areas. Protein-based products reinforce the hair shaft, and help it remain strong enough to fight breakage.
Some proteins are stronger than others, but daily or even weekly use of even the milder protein treatments may result in an imbalance between the protein and moisture levels within the hair strands in some people. This is where product percent composition really plays an important role. For example, every product that contains keratin protein is not going to feel the same way across the board, and every product that contains glycerin or water is not going to feel the same either! The protein in question could make up 30% of the product or 0.3%! Who knows! You have to play around with different products to know how strong they are on your particular hair. Your hair protein tolerance will vary from product to product, not necessarily protein to protein.
Protein is found most prevalently in products like instant conditioners (bargain brands like Suave and V05), leave-in conditioners, protein reconstructor (reconstructor is a KEY word to let you know its a protein. Also if it says it contains keratin) conditioner treatments, and even some moisturizers.
Women with relaxed or color treated hair need more protein than others. If you are relaxed or color treated, those processes have compromised the protein structure of your hair. Relaxing and coloring breaks protein bonds, and depending on the type and strength of the relaxer, and level of bond breakage you incur, you will need more or less protein than someone else. There are also some people whose hair is more protein deficient by nature (genetics, low protein dietary intake), so they require more regular protein than others to keep the balance intact. At the end of the day, you must experiment and get to know your own head of hair.
You Can't Have one Without the other!
The unique relationship that exists between the protein and moisture balances within the hair strand is not simply a case of balancing opposing forces one over the other to prevent hair breakage. These two components work together synergistically to produce a healthy head of hair, and neither can work well without the other. Keeping the hair balanced between these two entities is very important. Protein loss from chemical treatments is almost always followed by a moisture loss of some degree. Hair that is properly proteinated absorbs moisture more efficiently because water molecules bind easily to a sound protein structure within the hair. Achieving the proper balance involves using the right combinations of protein and moisture based products for your hair type.
When the balance is thrown off by too much protein
Hair that is shifted too far on the protein side will break easier, both wet and dry, because it lacks elasticity. Elasticity is what allows us to style, stretch, and manipulate our hair without breakage. Hair that breaks with very little tension or stretching is a sign of an overabundance of protein, and a deficiency of moisture. Any type of stretching or tension will break it because the protein goes in and adds structure to the hair. Too much structure makes the hair rigid, and decreases its elasticity. The result? Brittle, breakage-prone hair.
If this describes your hair at any time listen up! To correct this imbalance, you will need to go into a simple deep conditioning and moisturizing regimen. Protein induced breakage conditions can take several weeks to correct repair, and this form of breakage requires much more intensive conditioning and treatment than moisture induced breakage does. It is by far one of the most aggressive and common forms of breakage. It is much easier to overload your hair with protein and cause breakage, than to overload your hair with moisture and cause breakage. That is why if you are not sure what is causing your hair breakage, you should always try giving it moisture first. Depending on your level of breakage, this regimen may need to be followed for consecutive washes.
Clarify (Clarifying you hair is using a clarifying or stripping shampoo with that that is a bit harsher than normal shampoos and works extra hard to make your hair extra clean. It removes stubborn products that regular shampoo just cant. If you are worried about the way your hair will react or the harshness try mixing 1 part baking sea and 3 parts luke warm water and stir tip dissolved and use that as a mild rinse.) your hair with a really good stripping shampoo to remove any excess product buildup. Then, deep condition your hair for 30-45 minutes once, preferably twice a week with heat with a thick, creamy moisturizing deep conditioner. Apply a water-based moisturizer to your hair, concentrating on the ends daily. I would watch out for excess protein in common products like leave in conditioners, moisturizers, gels, and instant conditioners like Suave and V05. Protein hides in a lot of everyday products, so avoid those for a few weeks until your moisture balance is corrected. This will give your hair a chance to even out the protein/moisture balance. A list of product recommendations can be found at the end of this article.
When the balance is thrown off by too much moisture
Yes! There is such a thing as "over-conditioning" the hair Hair that is shifted too far on the moisture side will be "super-elastic" and stretch more because it lacks a sound protein structure. Many people describe the feel of over-conditioned and over-moisturized hair as "mush-like" or "overly soft," especially when wet. This kind of hair has a weak, limp, spongy feel to it. Protein deficient hair will tend to pull and stretch along with the comb and then break. It will always stretch first then break because of the low structural protein stores, and overabundance of moisture. Does this describe your hair? Listen up!
To solve this problem, you will need some kind of protein to give the hair structure again. Moisture Induced hair breakage is typically corrected in one protein deep conditioning session. The mildest forms can be corrected by simply moisturizing the hair twice a day with a protein-based water based moisturizer. For mild breakage, Aphogee (when i first started my hair journey, Aphogee saved my hair. Legitimately) 2 minute keratin reconstructor works very well. For moderate to heavy breakage, apply a moderate protein conditioner like Organic Root Stimulator Hair Mayo to the hair for about 20-30 minutes, then rinse. For serious or long standing forms of moisture induced breakage opt for a heavier protein treatment like Aphogee Treatment for Damaged Hair.
Even if your hair is stretching without breakage you should use a light protein product to correct this. When your hair stretches, the strand "thins" and becomes weaker across the cross section. It may not break right then at that very point in time, but stretched out of and beyond its shape, it is compromised and will eventually break at some other point. Your hair should be springing back to position. If it's stretching and stretching without breaking it may be your hair's way of telling you, "Hey, I need a little structure (protein) here! I'm getting waaaay too elastic, but not yet enough to break-- so do something now!" This is where a preventive maintenance protein application would come in. You don't have to wait for breakage to act. Your hair is telling you now! Start light, and work from there. You may not need a heavy protein treatment just yet.
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