Low porosity hair refers to hair that has tightly closed cuticles, making it difficult for moisture, oils, and products to penetrate the hair shaft. Think of it as hair with a protective outer layer that doesn’t easily let things in or out.

To care for low porosity hair, focus on lightweight, water-based products that won’t sit on the surface or cause buildup. Avoid heavy oils and butters, and clarify the hair regularly to prevent product residue. Keeping the routine simple and focused on hydration will help maintain healthy, manageable hair.