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Is Curly Hair Stronger Than Straight Hair?

Published in Hair Science 2 mins read

No, curly hair is generally considered more fragile than straight hair.

Curly hair's inherent shape makes it more prone to breakage and damage. This fragility arises from several factors:

  • Uneven Hair Fiber Shape: The coiled or spiral shape of curly hair creates "high spots" along the hair shaft. These areas have a slightly raised cuticle layer compared to straighter sections. This unevenness weakens the overall structure.

  • Natural Oils Distribution: The twists and turns of curly hair impede the smooth distribution of natural oils (sebum) from the scalp down the hair shaft. Consequently, the ends of curly hair often become drier and more vulnerable to damage compared to straight hair, which allows for easier oil distribution.

  • Increased Manipulation: Curly hair often requires more manipulation (combing, styling, etc.) to manage and define the curl pattern. This increased handling can lead to breakage, especially when the hair is dry or when using harsh styling techniques.

  • Cuticle Structure: The cuticle, the outermost layer of the hair, is not as tightly packed in curly hair compared to straight hair. This makes it more susceptible to moisture loss and environmental damage.

Therefore, while curly hair may appear voluminous and robust, its unique structure makes it inherently more delicate and requires specific care to maintain its health and strength.

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