Type 4a Hair in Germany: Routine, Porosity & Hard Water Guide
Type 4a hair in Germany reacts to hard water, dry winters, and humidity shifts. Understanding porosity and buildup is key to keeping moisture in, improving definition, and making your routine actually work long-term.
Hard Water and Scalp Health: Why It Starts at the Scalp
A wash day routine can look the same on the surface until your scalp starts telling a different story. If your routine feels off, hard water may be changing how shampoo rinses, how buildup behaves, and how your scalp feels after wash day.