One of the goals of TRI Professional Haircare is to maintain a healthy, beautiful, and alive appearance through the entire growth cycle of the hair by providing an abundance of nutrients, strengtheners and life giving moisturizing proteins in our formulations. To understand the hairs nutritional needs we must examine the structure or morphology of the human hair.
The hair fiber consists of three distinct layers, the cuticle, the cortex, and the medulla. The cuticle is a hard layer of flattened cells that protect the cortex. The cortex is an elastic, cable like, multi layered structure composed of various proteins and is the main body of the hair. The medulla is a hollow, tube like structure located in the center of the hair shaft.
The genesis of a human hair begins with a few undifferentiated liquid cells at the base of the hair follicle, the hair bulb. The division of these cells (mitosis) in the limited area of the hair bulb creates an upward pressure and the cells begin to ascend the hair follicle. During this ascension the various proteins are formed, Keratin, collagen, and insulin etc. The correct number of amino acids placed their correct order will form a specific protein. As the cells continue their upward progress helices, then keratin fibrils (a spring like structure) are formed as the process of keratinization (a drying process) begins. Several protofibrils bond together to form a micro fibril then several micro fibrils form a macro fibril, finally several macro fibrils form the cortex layer of the hair, a cable like keratin structure. The cuticle layer of the hair is formed by the compression of the outer cells of the cortex as it ascends the hair follicle lubricated by the sebaceous gland. Finally a fully keratinized structure as strong as an iron wire emerges from the hair follicle…a human hair.
As we know the hair fiber consists of several types of protein, but the main proteins are keratin, a hard durable protein that is responsible for the hairs strength and elasticity and collagen protein, the "glue" that holds together the cable like keratin structure and is responsible for the moisture content and flexibility of the hair.
As we have learned the hair begins as a few liquid cells and is formed by a drying process called keratinization. Unfortunately this drying process continues throughout the life of the hair. Exposure to the environment, daily shampooing and exposure to harsh chemicals can rob the hair of moisture providing proteins. The hair becomes weakened, loses its elasticity and shine and becomes dull and brittle. The rich blend of nutrients and moisture giving proteins in TRI Haircare Products help replace the loss of moisture giving proteins and protect the hair from the effect of lost protein, insuring a vital, healthy, and beautiful appearance throughout its complete growth cycle.