What hormone causes curly hair?

Author: Alisa Labadie  |  Last update: Tuesday, June 10, 2025

Fluctuating Estrogen Levels Can Bring About Changes in Your Curly Texture. Estrogen levels often fall for curl changes as estrogen is key for maintaining those helical hair follicles. During menopause, plummeting estrogen is linked to the onset of mixed curl patterns and gradual straightening of previously curly hair.

What hormone makes hair go curly?

It sometimes happens that hormonal changes can make hair follicules change shape. A change from straight to curly can be due to a rise in androgens vs estrogens, and this can be triggered by direct hormonal events, like menopause, but also by things that affect your overall hormonal balance, like stress and illness.

Why is my hair suddenly more curly?

Hair changing from straight to curly often indicates a hormonal shift within the body. Factors like menopause, pregnancy, puberty, and even taking birth control, can have a drastic, switching effect on your hair's texture. Hormonal changes alter how your genes are expressed, so changes here can make a big difference.

What deficiency causes curly hair?

The main hormones that determine the nature of your hair follicles are Thyroxine, Triiodothyronine, androgens and insulin. A lack of Thyroxine and Triiodothyronine can make hair feel dry and brittle. Whereas an increase in androgens are more closely connected to affecting shape.

Can thyroid issues cause curly hair?

Another possible cause for curling of the hair is hypothyroidism. Hypothyroidism is a medical condition that can lead to dry, thinning and coarse hair due to a hormonal disbalance [11]. Hair follicles are direct targets of thyroid hormones.

Hormones And Hair Texture (SIMPLIFIED AF)

What does thyroid hair look like?

Check for thinning hair evenly across your scalp. Unlike pattern baldness, thyroid hair loss is diffuse rather than concentrated in specific areas. Examine hair strands for dull, dry, brittle texture with split ends. Note down episodes of extreme fatigue, muscle weakness, and unintended weight gain.

Why is my hair getting curlier as I get older?

Ever wondered why your hair takes on new textures as you age? The answer lies within your hair follicles. As time goes on, follicles often shrink, affecting the thickness and structure of your hair shaft. This can enhance your curls or, on the flip side, make your once-curly hair lose some of its bounce.

What causes naturally curly hair?

So a straight follicle produces straight hair and a curved follicle produces curly hair. The less evenly distributed the squiggly proteins are, the curlier the hair. Your genetic code also plays a role in the shape of the cortex and, therefore, the shape and thickness of your hair.

Does estrogen change hair texture?

During pregnancy, changes in estrogen, prolactin, and other hormones can alter your follicle shape. Depending on these hormone levels, the hair type you start with, and genetics, your hair could become straighter, wavier, or curlier. Follicle changes may also affect hair texture, making strands finer or coarser.

Can testosterone make hair curly?

So now you know, your hormones are constantly working behind the scenes to influence how curly or straight your hair turns out. Fluctuations in estrogen, testosterone, and other hormones during puberty, pregnancy, and menopause can lead to changes in your hair texture and curl pattern over time.

Can hair get curly during menopause?

Hair texture changes

Hormones can affect the shape of some hair follicles, changing them from circle-shaped follicles that produce straight hair to oval-shaped follicles that produce curly hair. The coarse, wiry feel is from lower sebum levels.

Why did my hair type change from straight to curly?

As we grow older, our hormones often fluctuate, and our hair type can as well. You might have spent the first 20 years of your life with thick, curly hair that is now growing in thin and straight, or vice versa.

Why has my hair suddenly become curly?

Hormones are the main culprit responsible for such drastic hair texture changes. During puberty, menopause and pregnancy, many people will find their will go from straight to curly or vice versa over a period of months.

What are the symptoms of low estrogen?

Changes in estrogen levels
  • Hot flashes, flushes, and night sweats are the most common symptoms of low estrogen. At times, blood rushes to your skin's surface. ...
  • Mood swings are another effect of low estrogen. You may feel sad, anxious, or frustrated. ...
  • Thinning tissues may cause discomfort. Skin may appear more wrinkled.

Can you increase your estrogen naturally?

Some vitamins and minerals help your body produce estrogen and use it more effectively. To increase your estrogen levels, consider adding: Boron, a mineral that helps your body absorb testosterone and estrogen. Vitamin B, which helps your body create and use estrogen.

What does vitamin D deficiency look like in hair?

When your body doesn't have enough vitamin d, your keratinocytes seem to struggle regulating your natural hair cycle, reducing hair growth and increasing hair shedding. With lower vitamin d levels, the anagen (growth) phase of your hair cycle seems to shorten and your telogen (resting) phase seems to lengthen.

What hurts when your iron is low?

Chest pain, fast heartbeat or shortness of breath. Headache, dizziness or lightheadedness.

What drink has the most iron?

The following drinks high in iron for anemia can supplement your diet:
  • Prune juice. Prune juice is high in iron and is an excellent supplement to heme (animal-based) iron. ...
  • Beetroot juice. ...
  • Spinach, cashew, and raspberry smoothie. ...
  • Cocoa and beef liver smoothie. ...
  • Pea protein shakes. ...
  • Pumpkin juice.

How rare is naturally curly hair?

Human hair comes with all sorts of colors, textures and shapes. Notably, African hair is more coiled and dry; Asian hair is straighter and thicker; and Caucasian hair is somewhere in between with around 45% having straight hair, 40% having wavy hair, and 15% having curly hair.

What gene causes curly hair?

There is evidence that trichohyalin (TCHH) may affect hair curl in most/all world populations and that other genes such as EDAR and WNT10A only affect specific populations. Hair curl variation in native Africans is very likely a complex trait with multiple genes influencing curl.

Can menopause cause curly hair to go straight?

Here are a some ways your hair can change: 1️⃣ Curl Pattern Changes: During the Menopause, your estrogen levels decrease and can loosen your waves/curls, making them less defined or even straight.

How to fix old lady hair?

How women over 50 can combat dry or brittle hair
  1. Add Moisture to Replenish Natural Oils. As you age, it is more important than ever to add moisturizing products to your hair care routine. ...
  2. Reduce Heat Products. ...
  3. Add Some Shine. ...
  4. Get Regular Cuts. ...
  5. Look at Your Diet.

What medical conditions cause hair texture change?

Another cause of thinning hair that you likely have no control over is medication and underlying medical conditions. "Scalp conditions like psoriasis and seborrheic dermatitis, and underlying medical conditions like thyroid disease, can affect hair texture and cause hair to appear dry or dull," says Camp.

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