How does the shape of the hair strand affect dryness?

The shape of the hair strand plays a significant role in how moisture is retained within the hair. Curly and coily hair types have a more complex structure with bends and twists that create a greater surface area. This shape makes it more difficult for natural oils produced by the scalp to travel down the length of the hair. As a result, curly and coily hair is often more prone to dryness because the oils do not distribute as efficiently, leading to a lack of moisture in the hair shaft.

In contrast, straight hair strands can allow these natural oils to flow more freely from the scalp to the ends, which can help maintain moisture levels. However, this does not mean straight hair is always drier; it simply has a different moisture retention ability compared to curly or coily hair.

Wavy hair, while sometimes better at retaining moisture than extremely curly or coily hair, does not inherently retain moisture better than all other types. Each hair type has different characteristics and needs when it comes to moisture retention and care.

Finally, the idea that all hair types experience the same level of dryness is misleading. Each type reacts differently to environmental factors, products, and care routines, leading to varying levels of dryness. Understanding the relationship between hair shape and moisture retention