Type 1 Hair: Straight Hair. Type 1a hair is 100% straight. There is no hint of curl pattern or wave, it’s simply straight and flat as a pin. Another defining feature of type 1 hair is its thinness. The benefit of this particular texture is that it te

Type 1 Hair: Straight HairType 1a hair is 100% straight. There is no hint of curl pattern or wave, it&#x2019;s simply straight and flat as a pin. Another defining feature of type 1 hair is its thinness. The benefit of this particular texture is that it tends to effortlessly maintain its shine.Structure:&#xA0;Round follicle, uniform keratin alignment, low resistance to oil movementBiology:&#xA0;A round follicle creates a uniform fiber with even tension distribution Cuticle lies flat and compact.Hair Behavior:<ul><li dir="ltr" style="text-decoration:none;">Gets oily quickly at the roots </li><li dir="ltr" style="text-decoration:none;">Can look flat or lack volume </li><li dir="ltr" style="text-decoration:none;">Product buildup shows faster because nothing blocks the distribution to the ends </li><li dir="ltr" style="text-decoration:none;">Needs lightweight formulas that don&#x2019;t weigh hair down</li></ul>

Understanding Your Straight Hair Type (Type 1)

Function of Beauty

Identify your Type 1 straight hair pattern and learn how to build a routine that supports volume, shine, and balanced hydration. Discover the differences between Type 1A, 1B, and 1C hair, and how straight hair structure affects oil distribution.

Straight Hair: What is Type 1 Hair?

Hair Types Explained: How to Identify Your Hair Type and Build the Right Routine

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Understanding Your Wavy Hair Type (Type 2)

Wavy Hair: What is Type 1 Wavy Hair?

Understanding Your Curly Hair (type 3)

Culry Hair: What Is Type 3 Hair?

Understanding Your Coily Hair Type (Type 4)

Coily Hair: What is Type 4 Hair?