Anatomy: Straight hair has a round shaft and smooth cuticles that lie flat.

Physiology: Sebum spreads easily along the shaft, often leading to scalp greasiness.

Unique Issues: Prone to oiliness, product buildup, and lack of volume.

Best Ingredients: Lightweight, non-greasy formulas like chamomile, aloe vera, and silk proteins add shine without heaviness. Tea tree, witch hazel, and rosemary help balance excess oil while keeping the sleek texture intact.

Anatomy: Wavy hair has an “S” shaped pattern with an oval shaft. Cuticles may lift slightly, making it more porous.

Physiology: The uneven curl structure causes frizz and dryness as moisture escapes more easily.

Unique Issues: Frizz, dryness, buildup, and weak curl definition.

Best Ingredients: Hydrating and sealing agents like shea butter, argan oil, and coconut oil reduce frizz and add definition. Glycerin, panthenol, and honey help lock in moisture and enhance the natural wave pattern without heaviness.

Anatomy: Curly hair has an “S” or “Z” curl pattern with an oval shaft and raised cuticles, making it more porous.

Physiology: Sebum struggles to travel down tight curls, leading to natural dryness. Higher porosity in tighter curls makes moisture retention difficult.

Unique Issues: Dryness, frizz, tangling, weak curl definition, and breakage.

Best Ingredients: Rich moisturizers like avocado oil, jojoba oil, and mango butter restore hydration. Aloe vera, flaxseed extract, and marshmallow root help define curls, reduce frizz, and detangle for easier manageability.

Anatomy: Coily or kinky hair forms tight coils or zig-zag curls with a flat or twisted shaft and raised cuticles, making it highly porous.

Physiology: Sebum struggles to travel down the dense curl pattern, leaving hair naturally dry. High porosity increases moisture loss and vulnerability.

Unique Issues: Dryness, fragility, shrinkage, tangling, matting, and breakage.

Best Ingredients: Deep moisturizers like shea butter, cocoa butter, and castor oil lock in hydration and strengthen strands. Hibiscus extract, slippery elm bark, and baobab oil soften, detangle, and help support healthy growth.