What does keratin look like?

Keratin is a fibrous protein that appears as a tough, resilient material. In its natural state, it is typically colorless and translucent, forming structures like hair, nails, and the outer layer of skin. Under a microscope, keratin fibers look like long, coiled chains, contributing to their strength and durability. When processed, keratin can also be found in various cosmetic products, often appearing as a white or yellowish powder or liquid.