When the levels of estrogen and progesterone drop, hair grows more slowly and becomes much thinner. A decrease in these hormones also triggers an increase in the production of androgens, or a group of male hormones. Androgens shrink hair follicles, resulting in hair loss on the head.
Estrogen and progesterone can help keep your hair in the growing (anagen) phase. Therefore, these hormones can help your hair stay on your head longer and may even help your hair grow faster. This may be why many women notice their hair thinning starts to improve with estrogen replacement therapy.
The answer is yes! Fortunately, unlike genetic hair loss, most hair loss caused by hormonal imbalances is reversible.
Estrogen and progesterone levels fall, meaning that the effects of the androgens, male hormones, are increased. During and after menopause, hair might become finer (thinner) because hair follicles shrink. Hair grows more slowly and falls out more easily in these cases.
Hormone replacement therapy (HRT)
HRT is used to increase your body's natural hormone levels. Your doctor may recommend HRT if you're approaching menopause. Menopause causes your estrogen and progesterone levels to significantly decrease. HRT can help return these levels to normal.
Hormonal Hair Loss: Gradual Thinning Of Hair
In women, androgenic alopecia begins with a gradual widening of the part line, followed by increased thinning starting at the top of the head. “A patient may begin to notice a thinner ponytail or may say 'I see more of my scalp,'” St. Surin-Lord says.
DHT, a derivative of the male hormone testosterone, is the enemy of hair follicles on your head. Simply put, under certain conditions DHT wants those follicles dead. This simple action is at the root of many kinds of hair loss. Testosterone converts to DHT with the aid of the enzyme 5-alpha reductase.
DHT: The hormone behind hair loss
It can also be made from DHEA, a hormone more common in women. DHT is found in skin, hair follicles, and the prostate. The actions of DHT and the sensitivity of hair follicles to DHT is what causes hair loss.
Estrogen is related to hair growth — and hair loss. During pregnancy, for example, a woman's estrogen levels are higher than normal, which signals more hair follicles to "grow" and fewer to "rest." While estrogen levels are high, women have full, thick hair.
HRT and Hair Regrowth
Estrogen and progesterone are hormones that aid in healthy hair growth, so when your body stops producing these, it can cause hair loss. Taking HRT can help prevent this loss and may even help regrow hair. In fact, some trans women with androgen alopecia who underwent HRT saw hair regrowth3.
The most common cause of low estrogen is menopause. But too much exercise, disordered eating, or complications with your ovaries could also lead to lower levels. HRT may be an option for reducing symptoms, but you should talk to your doctor about the risks and benefits.
It's important to understand that this is not a quick-fix for hair loss in women. The drug must be used for at least two consecutive months to notice a difference, and the effect is usually noticed around the four-month mark, but it could possibly take longer. A six to 12-month trial is recommended.
Hair loss can also be triggered by hormone changes that occur during menopause. During menopause women's estrogen and progesterone levels drop causing hair to grow more slowly and become thinner.
Only riboflavin, biotin, folate, and vitamin B12 deficiencies have been associated with hair loss.
Hormone therapy
If hormone imbalances due to menopause, for example, cause hair loss, doctors may recommend some form of hormone therapy to correct them. Some possible treatments include birth control pills and hormone replacement therapy for either estrogen or progesterone.
Both men and women can develop hormonal imbalances that can cause hair to thin or fall out. Often, treating the imbalance helps your hair regrow. Although most people think of estrogen or testosterone when they think of a hormone imbalance, issues with your thyroid can also lead to hair thinning.
There are a wide range of conditions that can bring on hair loss, with some of the most common being pregnancy, thyroid disorders, and anemia. Others include autoimmune diseases, polycystic ovary syndrome (PCOS), and skin conditions such as psoriasis and seborrheic dermatitis, Rogers says.
It's best to make an appointment to see a dermatologist. Dermatologists are the experts in diagnosing and treating hair loss. A dermatologist can tell you whether it's FPHR or something else that is causing your hair loss.
Is it reversible? While some forms of AFAB hair loss are temporary, female pattern baldness is permanent and irreversible without treatment. However, proper treatment can stop the hair loss and potentially help regrow some lost hair.
A Fred Hutchinson Cancer Research Center study involving postmenopausal, overweight, and obese women who took 2,000 IUs of vitamin D daily for a year found that those whose vitamin D blood levels increased the most had the greatest reductions in blood estrogens, which are a known risk factor for breast cancer.
Functional foods, vitamins and minerals, and herbal supplements are all natural ways to boost estrogen in the body. If natural methods aren't enough to boost your estrogen levels, visit your doctor to discuss other treatment options, such as hormone replacement therapy.
Bioidentical or "natural" hormones
Bioidentical hormones are hormone preparations made from plant sources that are promoted as being similar or identical to human hormones. Practitioners claim these hormones are a "natural" and safer alternative to standard HRT medicines.