Does Testosterone Make Your Hair Curly? Curly Revelation! 2023

Last Updated: 27 November 2023

Have you ever wondered, “Does testosterone make your hair curly?” It’s a question that piques the curiosity of many, especially when noticing changes in hair texture. Commonly, testosterone is associated with various physical changes, but its impact on hair, particularly its curliness, remains a topic of intrigue and speculation.  

Here, you will delve into the fascinating world of hormones and hair, aiming to explore and clarify the relationship between testosterone and the potential transformation of your hair’s texture. Join us as we unravel the science and myths surrounding this intriguing subject. 

Understanding Testosterone: The Hormone Behind Many Changes 

Testosterone, often associated with masculinity, plays a crucial role in the human body influencing everything from physical appearance to overall health. But can testosterone make your hair curly?

To answer this, you first need to understand what testosterone is and its functions. 

What is Testosterone? 

Testosterone is a steroid hormone primarily produced in the testicles in males and the ovaries in females, though in much smaller amounts. It’s classified as an androgen, which means it stimulates the development of male characteristics. 

The Role of Testosterone in the Body 

In Males: Testosterone is essential for developing male reproductive tissues, including the testes and prostate. It also promotes secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair. 

In Females: While present in lower levels, testosterone in females supports ovarian function, bone strength, and sexual well-being. 

Variations by Gender and Age 

In Males: Testosterone levels are highest in young adulthood and decrease with age. This decline can lead to changes in muscle mass, bone density, and libido. 

In Females: Women have lower levels of testosterone, but it still plays a vital role in their health. Changes in testosterone levels can affect menstrual cycles, mood, and energy levels. 

Overview of Testosterone’s Effects on the Body 

Testosterone influences various bodily functions, including: 

Physical Development: It’s key in puberty causing deepening of the voice, growth in height, and increased muscle mass. 

Mood and Mental Health: Testosterone can impact mood with low levels sometimes linked to depression or a decrease in cognitive function. 

Sexual Function: It’s crucial for libido and sexual performance, particularly in men. 

Hair Growth: Testosterone affects body and facial hair growth, but its role in hair texture, such as curliness, is less clear and requires further exploration. 

Even, testosterone plays a role n your jawline defining. Read more here; Does Testosterone Change Your Jawline?

Exploring Hair Structure and Growth: Understanding Texture Changes 

When considering the question, “Can testosterone make your hair curly?”, it’s essential to first understand the basic anatomy of hair and the factors that influence its growth and texture. 

Basic Anatomy of Hair 

Hair Follicles: The root of each hair is encased in a follicle, located beneath the skin’s surface. Hair follicles are responsible for hair growth and play a key role in determining the hair’s texture and thickness. 

Hair Shaft: The visible part of the hair. It’s made of a protein called keratin, packed into three layers – the medulla, cortex, and cuticle. 

Sebaceous Glands: These glands are attached to hair follicles and produce sebum, an oil that helps keep hair moisturized. 

The Science of Hair Growth 

Hair growth occurs in three stages: 

Anagen (Growth Phase): Hair grows actively during this phase. 

Catagen (Transition Phase): Growth slows down, and the hair follicle shrinks. 

Telogen (Resting Phase): The hair follicle is inactive, and hair eventually falls out. 

How Hair Texture is Determined?

The shape of the hair follicle plays a crucial role in determining hair texture. Round follicles tend to produce straight hair, while oval and irregularly shaped follicles lead to wavier or curlier hair. 

Factors Influencing Hair Texture Changes Over Time 

Genetic Factors: Your genes largely determine your hair texture. However, changes in hair texture can occur due to aging or hormonal shifts. 

Hormonal Changes: Hormones, including testosterone, can influence hair growth patterns. For instance, increased levels of androgens, including testosterone, can lead to thicker, coarser hair, but its direct effect on curliness is less clear. 

Environmental Factors: External factors like humidity, heat, and chemical treatments can temporarily or permanently alter hair texture. 

Health and Nutrition: Overall health and nutrition can impact hair health and texture. Poor nutrition or health issues can lead to changes in hair texture and growth. 

Investigating the Role of Testosterone in Hair Texture 

Let’s explore the scientific perspective and available evidence on this topic. 

The Hormonal Influence on Hair Texture 

Hormones and Hair: Hormones, including testosterone, play a significant role in determining hair characteristics. They can influence hair growth, thickness, and even texture. 

Testosterone’s Role: Testosterone, particularly its byproduct dihydrotestosterone (DHT), is known for affecting hair growth patterns. It’s linked to changes in hair density and texture, especially during puberty and aging. 

Does Testosterone Make Your Hair Curly? 

While testosterone is known to impact hair characteristics, its direct effect on making hair curly is not conclusively proven. Research shows that testosterone can lead to coarser, thicker hair, but its influence on curliness is less clear. 

Hair texture, including curliness, is primarily determined by genetics. The shape of the hair follicle, which is genetically programmed, is a key factor in whether hair is straight, wavy, or curly. 

Case Studies and Research Findings 

According to the research published in the International Journal of Molecular Sciences, the skin is recognized as an endocrine organ due to its ability to synthesize various hormones and express related hormone receptors. While numerous hormonal pathways and their effects on hair growth have been documented, the study highlights the need for further research to fully understand the extent of hormonal regulation on hair growth. (1) 

In another study published in 2019 by The Royal Society Publishing, the paper reviewed research on curly scalp fibers, categorizing it into three areas: reasons for fiber curling, characteristics of curly fibers, and their behavior. It identified a significant data gap, noting that race-based classifications in studying curly fibers add complexity and bias, impeding the understanding of this phenotype.

The review also introduced a model to systematize research on fiber curvature, providing a comprehensive overview of research areas and guidelines to enhance research focus, facilitate targeted literature reviews, enable comparative studies, and identify areas needing more research. The key finding is the need for a more systematic and unbiased approach to studying curly scalp fibers. (2) 

Understanding the Multifaceted Influences on Hair Texture 

While exploring the question, “Does testosterone make your hair curly?”, it’s crucial to consider other significant factors that play a role in determining hair texture. 

Genetic Factors in Hair Texture 

Primary Determinant: Genetics are the foremost factor in determining hair texture. The shape of the hair follicle, which is genetically inherited, dictates whether hair is straight, wavy, or curly. 

Ethnic Variations: Different ethnicities have distinct hair textures due to genetic diversity. For example, African ancestry often correlates with curlier hair, while Asian descent typically links to straighter hair. 

Environmental and Lifestyle Factors Impacting Hair 

Climate and Humidity: Environmental conditions, particularly humidity, can temporarily alter hair texture. High humidity often makes hair frizzier or curlier, while dry climates might make it flatter or straighter. 

Chemical Treatments and Heat Styling: Regular use of chemical treatments (like perms or relaxers) and heat styling tools can permanently or temporarily change hair texture. 

Nutrition and Health: Overall health and diet can influence hair health and texture. Nutritional deficiencies or health conditions can lead to changes in hair texture and quality. 

The Role of Other Hormones in Hair Texture Changes 

Thyroid Hormones: Imbalances in thyroid hormones can lead to hair texture changes. Hypothyroidism, for example, can make hair dry and coarse. 

Estrogen and Progesterone: These hormones, particularly during pregnancy and menopause, can affect hair texture. Many women notice hair texture changes during these life stages. 

Cortisol: Stress and the associated hormone cortisol can also impact hair health and texture, often leading to hair thinning or changes in texture. 

Do you know Testosterone hormone has a crucial impact on your voice also?? Read more here: Does Testosterone Change Your Voice?

Professional Advice on Managing Hair Texture Changes 

Understanding Changes: Experts advise that changes in hair texture, especially during hormonal shifts like puberty, pregnancy, or menopause, are normal. Monitoring these changes can provide insights into overall health. 

Healthy Hair Practices: Regular hair care, a balanced diet, and avoiding harsh chemical treatments can help maintain hair health during hormonal changes. 

Consulting Specialists: If significant changes in hair texture are observed, consulting a dermatologist can help in understanding the underlying causes and appropriate care. 

Debunking Myths: Testosterone and Hair Curliness 

Myth vs. Reality: While it’s a common belief that testosterone can make hair curly, experts clarify that there’s no substantial scientific evidence to confirm this directly. Hair curliness is primarily determined by genetics. 

Balanced View: Experts emphasize the importance of a balanced understanding of how hormones affect the body, noting that while they play a role in hair characteristics, attributing changes in curliness solely to testosterone is an oversimplification. 

FAQs About Testosterone Making Hair Curly 

Does Testosterone Therapy Make Hair Curlier?

While individual experiences vary, some people have reported their hair becoming curlier or waiver after starting testosterone therapy. 

Does Testosterone Cause Greasy Hair?

Testosterone can influence the production of sebum, the oil secreted by sebaceous glands in the skin. Higher levels of testosterone can lead to increased sebum production, which might make hair appear greasier or oilier. This is why during puberty, when testosterone levels increase, many people experience oilier skin and hair.

However, the extent to which testosterone increases sebum production and thus affects hair greasiness can vary from person to person. 

Does Testosterone Affect Your Hair?

Testosterone does affect hair in several ways. Apart from potentially altering hair texture and increasing sebum production, testosterone also plays a role in hair growth patterns. It can contribute to hair growth in new areas (like facial hair in men) while also potentially leading to hair thinning or loss, especially in individuals predisposed to male pattern baldness. The hormone dihydrotestosterone (DHT), which is derived from testosterone, is particularly known for its role in male pattern baldness. 

Does Testosterone Change Hair Texture?

Yes, testosterone can change hair texture. This is particularly noted in individuals undergoing testosterone therapy, such as transgender men or those undergoing hormone replacement therapy. People have reported changes in their hair becoming curlier, wavier, or coarser after starting testosterone therapy.

However, it’s important to note that these changes can vary greatly among individuals, and not everyone may experience significant alterations in hair texture due to testosterone. 

Is the Change in Hair Texture Due to Testosterone Permanent?

The permanence of hair texture changes due to testosterone is not clearly defined and may depend on individual factors. 

Does Everyone Experience Changes in Hair Texture with Testosterone?

Not necessarily. The effect of testosterone on hair texture can vary greatly among individuals. 

Are There Any Scientific Studies Linking Testosterone with Changes in Hair Texture?

Specific scientific studies on this topic are not mentioned in the resources, but anecdotal evidence suggests a possible link. 

Can Testosterone Lead to Hair Loss or Thinning?

Testosterone can impact hair growth patterns, which might include hair thinning or loss in some individuals. 

Is It Possible to Predict How Testosterone Will Affect My Hair?

It is challenging to predict exactly how testosterone will affect an individual’s hair, as it depends on various factors including genetics and individual hormonal responses. 

Final Verdict on Testosterone Making Your Hair Curly

As you cruise the intriguing world of how hormones influence our bodies, the question of whether testosterone can make your hair curly might leave you feeling both curious and perhaps a bit skeptical.

It’s important to understand that while hormones like testosterone can impact hair texture, the relationship is not straightforward and is influenced by a variety of genetic and environmental factors.

If you’re noticing changes in your hair texture and are curious about the role of hormones, it may be helpful to consult with a healthcare professional or a dermatologist. They can provide personalized insights and advice, helping you understand and embrace the unique characteristics of your hair.

Read More about Testosterone Boosters:

– TestoPrime Reviews: Best & Strongest T-Booster Over the Counter 2023

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Sources & References

  1. Grymowicz M, Rudnicka E, Podfigurna A, Napierala P, Smolarczyk R, Smolarczyk K, Meczekalski B. Hormonal Effects on Hair Follicles. Int J Mol Sci. 2020 Jul 28;21(15):5342. doi: 10.3390/ijms21155342. PMID: 32731328; PMCID: PMC7432488.
  2. Cloete E, Khumalo NP, Ngoepe MN. The what, why and how of curly hair: a review. Proc Math Phys Eng Sci. 2019 Nov;475(2231):20190516. doi: 10.1098/rspa.2019.0516. Epub 2019 Nov 20. PMID: 31824224; PMCID: PMC6894537.

About the Author & Medical Reviewer:

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Muhammad Muaz Sheikh

Muhammad Muaz is a seasoned professional in the realm of media and communication, boasting a Bachelor of Science in Mass Communication with a specialization in PR & Media Advertisement. With an innate understanding of effective communication strategies, Muaz has honed his expertise through extensive experience in various media houses, serving in key editorial roles. His journey in the field of media has equipped him with a profound understanding of storytelling and impactful content creation.

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Nick Rodocoy, CPT

Nick Joy is a seasoned Certified Personal Trainer, dedicated to transforming lives through fitness and nutrition. With certifications from the American Council on Exercise and Precision Nutrition, he brings a wealth of knowledge and expertise to his clients. Nick's passion for health and wellness is contagious, inspiring individuals to embNickark on their own transformative journeys. Nick has been featured on Mensjournal, Shape, Yahoo, Womehealthmag and many more.