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The Scientific Truth Behind Curly Hair

The Science Behind Hair That Twists and Turns.
Creation Date:
Update Date: 22 7月 2024

The Scientific Truth Behind Curly Hair


Have you ever wondered why some hair is straight, and some curly? The scientists at Kérastase are eternally intrigued by the way in which hair behaves. We harnessed the power of L’Oreal research to analyze all curly hair types in 23 countries around the world. Here’s what we found.



ALL HAIR IS CREATED EQUAL

All hair textures are biologically the same. Where they differ is in the actual shape of the fibre and the follicle. Curly hair is born deep in the scalp from a curved bulb, and takes its winding shape due to irregularly distributed keratin, the building blocks of hair. Individuals with natural curly hair often opt for the keratin treatment for this very reason.



The 3 Ways Curly Hair is Special

Though all hair is biologically the same, natural curly hair has distinctive characteristics that demand a different approach to care.



1. Curls are naturally drier and more porous.

In general, curly hair is more porous than straight hair, which alters its ability to absorb and retain moisture and caring agents. For this reason, dry curly hair needs very rich, nourishing care.


The Scientific Truth Behind Curly Hair




The Scientific Truth Behind Curly Hair


2. Curls are thinner and more fragile.

Because of its texture, curly hair is more delicate and easily sensitizes. It tends to take more wear and tear from daily heated hair styling tools, braiding, and even sleeping. Exposure to the mechanical stress of brushing and detangling can lead to hair breakage. A study conducted on curly hair shows that combing requires 5-50x the force of straight hair. Extra strengthening products are essential.




3. Curls have a spiral shape that makes it difficult for oils and caring agents to migrate from root to tip.

On straight hair, care products can easily slide along the length of the fibre, hydrating further down the shaft. Due to the shape of the curl, caring agents do not reach as easily. The key to curly hair care is to add gliding agents to help diffuse frizz.


The Scientific Truth Behind Curly Hair




Curls Deserve The Best Care

We celebrate all curly hair types and textures. Through scientific curiosity and cultural inquiry, Kérastase is working to address the special demands of all curls and coils. We continue to apply our philosophy of innovation to make the impossible possible, providing three key benefits to curly hair:


The Top - Kerastase Elixir Ultime Original Hair Oil

1. Hydration with fine Manuka Honey to heal porosity and nourish the fibre.

The Heart - Kerastase Elixir Ultime Original Hair Oil

2. Strength with biomimetic ceramide that acts like the hair’s own “cement,” deep in the cortex.

The Base - Kerastase Elixir Ultime Original Hair Oil

3. Glide with diffusing Glycerin that carry ingredients from root to tip for perfect curl definition.



AT LAST, LUXURY MEETS PERFORMANCE IN A CURLY HAIR CARE LINE THAT EMPOWERS WOMEN TO WEAR THEIR BEAUTIFUL, NATURAL CURLS WITH CONFIDENCE AND PRIDE.




Curl Manifesto Curly Hair Care Routine


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