👉 Hairy fluid, also known as sebaceous filaments or trichohyalae, is a specialized secretion produced by the hair follicles in mammals. These filaments are covered with microscopic, hair-like structures called trichohyalae, which give the fluid its characteristic texture and appearance. The hairy fluid plays a crucial role in maintaining the health and function of the hair and skin by providing lubrication, protecting against environmental damage, and aiding in the growth and repair of hair follicles. It also contributes to the overall hydration and barrier function of the skin, helping to retain moisture and prevent water loss.