Hair fibers do not cause hair loss. They are cosmetic products that sit on the surface of existing hair, attaching through static electricity to create volume. High-quality keratin or cotton fibers are safe, lightweight, and non-invasive. They do not clog follicles or affect scalp health. However, low-quality products or improper cleaning may irritate sensitive scalps. When used correctly, hair fibers are harmless and provide an instant boost in hair density, making them a safe option for covering thinning or bald patches. https://febron.com/blogs/blog/everything-you-need-to-know-about-hair-fibers