What do keratin and lamellar granules do?

Keratin is a structural protein that provides strength and resilience to the skin, hair, and nails, helping to form a protective barrier against environmental damage. Lamellar granules, found in the epidermis, release lipids and proteins that contribute to the skin's barrier function by forming a lipid matrix. This helps to prevent water loss and protect against pathogens, maintaining overall skin hydration and integrity. Together, they play crucial roles in skin health and protection.