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.
As with male pattern baldness, female pattern baldness comes from hormone imbalances, specifically dihydrotestosterone imbalances, or DHT. This hormone is similar in structure to testosterone, but it is significantly more potent [3]. DHT can attach to receptors on the hair follicles, causing the follicles to shrink.
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.
DHT: The hormone behind hair loss
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.
According to Harvard Health Publishing, topical minoxidil is the most common treatment for androgenic alopecia or hormonal hair loss as opposed to corticosteroids for non-hormonal hair loss treatment. Corticosteroids reduce inflammation and lower the immune response in alopecia areata.
Menopausal women may have another treatment option for their hair loss: hormone replacement therapy. Although controversial, these hormones — available in estrogen and progesterone creams, pills, and patches — can help prevent hair loss as well as ease menopause symptoms.
Lifestyle factors could include using certain hair products, wearing your hair up too tightly, experiencing high stress levels, or not getting enough of certain vitamins and minerals in your diet. People who have immune system deficiencies could also have thinning hair.
Low levels of estrogen and progesterone means your hair may start to fall out sooner and grow more slowly. The goal of hormone replacement treatment during menopause is to help your body attain healthy, balanced hormone levels, which is why many women may notice changes in hair thinning once they start treatment.
Androgens, such as testosterone (T), dihydrotestosterone (DHT), and their prohormones dehydroepiandrosterone sulfate (DHEAS) and androstenedione (A) are the key factors in the growth of terminal hair.
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.
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.
Hormone Therapy Can Help Treat Hair Loss
If your hair loss is attributed to hormone imbalances, such as lower estrogen levels, a physician might prescribe a form of hormone therapy as treatment. There are different forms of hormone therapies, so some treatment methods might be more suitable for you than others.
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. In addition to keeping your bones strong, estrogen and progesterone keep your hair healthy.
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.
Practicing a healthy lifestyle can help reduce DHT levels naturally. This includes regular exercise, quit smoking, reduce stress, take time to rest, and do scalp exercises like massages to reduce tension and increase blood flow.
While estrogen can help thin hair, it cannot completely reverse facial and body hair growth.
The answer is yes! Fortunately, unlike genetic hair loss, most hair loss caused by hormonal imbalances is reversible.
Excess thyroid, estrogen, progesterone and DHEA supplements can all cause hair loss. When the hair follicle is exposed to higher-than-normal levels of hormone, it shuts down and stops responding.
Certain styles—like bobs and blunt cuts—can actually create the illusion that your hair is thicker than it is. "Short hairstyles are best for thinning hair, because too much length can drag the hair down and create an unflattering, stringy appearance," says Alabama stylist Hope Russo.
Telogen effluvium hair loss — the type of hair loss linked to stress — typically affects your scalp and may appear as patchy hair loss. However, it can also cause you to shed more body hair or notice less hair on your body than you normally would.
Here's the truth: You can't change the size of your hair follicles. If you were born with fine hair, it's genetics, and no product will completely alter that. Of course, there are ways to maintain your hair health, add volume, and keep it from getting any thinner.