Amazon Hair Loss Essentials: Understanding Hair Growth and Loss Hair is the fastest growing tissue in our body, composed of proteins called keratins. Each hair strand has three layers: the medulla (inner layer), the cortex (middle layer), and the cuticle (outer layer). The cortex determines the hair's strength, texture, and color, while the cuticle protects it. Hair grows from roots enclosed in follicles, nourished by the bloodstream through the dermal papilla. Only the roots are alive, while the visible part is dead tissue. This makes scalp and body care crucial for hair growth and maintenance. Hair growth occurs in three stages: Anagen: Active growth phase Catagen: Transitional phase where follicles shrink Telogen: Resting phase The average scalp contains 100,000-150,000 hair follicles, with 90% growing and 10% resting at any given time. It's natural to lose about 100 hairs per day. However, hormones called androgens can cause hair follicles to shrink, leading to thinning or hair loss. Understanding these basics can help you make informed decisions about hair care and loss prevention. The Amazon Hair Loss Essentials product comes with Master Resell Rights, allowing you to resell this valuable information.