Why does curly hair get frizzy? Understanding the causes and solutions
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Why does curly hair get frizzy? Understanding the causes and solutions

by Nanna Bundgaard on Jul 08, 2025

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Dorthe Kristensen

Read through by Dorthe Kristensen

Hairdresser and former co-owner of the award-winning hairdressing chain Zoom by Zoom
With many years of experience in the hairdressing industry, Dorthe has advised many customers about hair and hair care. Dorthe has read through this blog entry to ensure high quality and professionalism. This blog post is professionally updated on July 9, 2025.

Table of contents

For those with curly hair, the battle against frizz is a universal struggle. Whether it's a humid day or just the everyday hustle, managing frizz can be a constant challenge. This blog post aims to shed light on the causes of frizz in curly hair and explore solutions to keep those curls looking their best.

Why is frizz so persistent?

Frizz can often undermine even the most carefully styled curls, leaving hair looking unruly and unkempt. This persistent issue can be frustrating, as it often seems to have a mind of its own, refusing to cooperate with styling efforts. The emotional impact of dealing with frizz daily can be significant, affecting one's confidence and routine.

Why addressing frizz matters

Understanding and addressing frizz is important for maintaining healthy, manageable curls. By exploring the structure of curly hair, the effects of environmental influences, and the best care methods, we can better tackle this common issue. This post will delve into these topics to provide a comprehensive guide to managing frizz effectively.

What is the structure of curly hair?

Curly hair is uniquely structured, which contributes to its tendency to frizz. The hair's natural porosity and dryness make it more susceptible to frizz. Unlike straight hair, the cuticle of curly hair doesn't lie flat, allowing moisture from the air to penetrate the hair shaft. This results in swelling and, ultimately, frizz.

By understanding the underlying causes of frizz, those with curly hair can take proactive steps to manage it. From choosing the right products to adopting gentle handling techniques, there are various ways to keep frizz at bay and enjoy beautiful, defined curls.

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Why does lack of moisture cause frizz?

One of the primary reasons curly hair becomes frizzy is its inherent dryness. Curly hair tends to be more porous, which means it can easily absorb moisture from the environment. This absorption causes the hair to swell, leading to the frizz that many people with curly hair experience. The cuticle, which is the hair's outer layer, struggles to remain flat in such conditions, allowing humidity to disrupt the hair's natural structure.

To combat this, it's important to focus on moisture retention. Regularly using hydrating products can help maintain the moisture balance in curly hair. For instance, our Twirl and Curl curly cream is designed to define curls while locking in moisture, reducing the likelihood of frizz.

Impact of damage and overwashing

Another significant contributor to frizz in curly hair is damage caused by overwashing and chemical treatments. Overwashing strips the hair of its natural oils, which are essential for maintaining moisture. Without these oils, the hair becomes dry and more prone to frizz. Similarly, chemical treatments and frequent heat styling can damage the hair cuticle, making it more susceptible to moisture from the air.

To mitigate these effects, it's advisable to limit the frequency of washing and to use gentle, sulfate-free shampoos. This helps preserve the hair's natural oils, maintaining its moisture and reducing frizz.

How do friction and physical stress contribute to frizz?

Physical stress and friction are often overlooked factors that contribute to frizz. Actions such as rough towel drying, brushing dry hair, and using cotton pillowcases can cause the hair cuticle to ruffle, leading to frizz. The friction from these activities disrupts the hair's surface, causing it to appear frizzy.

Switching to a bamboo pillowcase can significantly reduce friction while sleeping, helping to keep the cuticle smooth and minimizing frizz. Additionally, using a wide-toothed comb on wet hair can help detangle without causing unnecessary stress to the hair.

The role of product build-up and protein imbalance

Product build-up and an imbalance between moisture and protein can also lead to frizz. Heavy products and hard water can leave residues on the hair, affecting its integrity and texture. This build-up can prevent moisture from penetrating the hair, leading to dryness and frizz.

Maintaining a balance between moisture and protein is important for healthy hair. Incorporating clarifying treatments into your routine can help remove build-up, allowing moisture to penetrate the hair more effectively. This balance ensures that the hair remains strong and hydrated, reducing the likelihood of frizz.

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How to protect curly hair from frizz

Protecting curly hair from frizz involves a combination of proper care techniques and the right products. One effective approach is to use a microfiber towel to gently dry hair, minimizing friction and breakage. Additionally, applying a rosemary hair oil can help seal the cuticle, locking in moisture and reducing the chances of frizz.

How to manage curly hair in humid conditions

Humidity can be a significant challenge for curly hair, often leading to increased frizz. To combat this, consider using a heat protectant like the Style and Shine heat protection spray, which can also offer some humidity resistance. Additionally, styling creams and leave-in conditioners can help maintain moisture levels, creating a barrier against humidity.

Choosing the right hair care products

Selecting the right products is essential for managing frizz in curly hair. Look for products that are free from harsh chemicals and sulfates, as these can strip the hair of its natural oils and moisture. At Yuaia Haircare, we offer a range of products made with natural ingredients, ensuring that your hair remains healthy and vibrant without the risk of harmful chemical exposure.

Frequently asked questions

How often should I wash my curly hair to prevent frizz?

It's generally recommended to wash curly hair 1-2 times a week. This frequency helps maintain the natural oils that keep hair moisturized and less prone to frizz.

What ingredients should I avoid in hair products?

Avoid products containing sulfates, silicones, and alcohols, as they can strip moisture from curly hair, leading to increased frizz.

Can a change in diet affect hair frizz?

While diet can influence overall hair health, maintaining proper hydration and using the right hair care products are more directly impactful in managing frizz.

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