Doctor’s Note: Your Essential Guide to Finasteride

As dermatologists, we understand that hair loss can be a difficult and personal issue. Many people seek effective treatments to help slow down or reverse hair thinning. Finasteride has become a go-to option for many men and women dealing with hair loss. Here, we’ll cover how finasteride works in women, its side effects, what you can expect from this treatment.

Watch the video to the right, or read on for more!

What is Finasteride?

Finasteride is a prescription medication commonly used to treat male-pattern hair loss. It works by lowering levels of a hormone called DHT (dihydrotestosterone), which can shrink hair follicles and contribute to hair thinning. By reducing DHT, finasteride helps slow down hair loss and, in some cases, can encourage hair regrowth.

While finasteride is traditionally used for male hair loss, some women with hair loss also use it under close medical supervision. Finasteride for women hair loss is less common due to potential side effects, but it can be an option in specific cases, often paired with other treatments like spironolactone.

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How Finasteride Works

Finasteride is a type of medication called a 5-alpha-reductase inhibitor. This means it blocks an enzyme in the body that changes testosterone into another hormone called DHT (dihydrotestosterone). DHT causes hair follicles to shrink, which leads to thinner hair and eventually hair loss. By lowering DHT levels, finasteride helps protect the hair follicles, allowing them to grow thicker, healthier hair.

Over time, regular use of finasteride can slow down hair loss and even encourage new hair growth, making it a helpful option for people dealing with hair thinning or baldness.

How Does Finasteride Work?

Finasteride Before and After Results

Most people begin to see results from finasteride after about three to six months of consistent use. Finasteride before and after photos often show a reduction in hair thinning and, in some cases, visible regrowth. Results vary, and some people may experience better results when combining finasteride with other treatments, like minoxidil.

Finasteride Before and After

How to Take Finasteride

  1. Follow Your Doctor’s Instructions: Finasteride is usually prescribed as a once-daily pill. Take it exactly as directed by your doctor, and don’t change the dose or skip days without consulting them. Following instructions closely can help you get the best results.

  2. Consistency is Key: Taking finasteride at the same time every day is important for steady results. Setting a daily reminder or adding it to your routine can make it easier to remember. Consistency helps maintain the right amount of medication in your body to support hair growth.

  3. Be Patient: Hair growth takes time, so don’t expect immediate changes. It can take several months before you notice improvements in hair thickness and growth. Stick with the treatment, as results usually become more visible over time.

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Finasteride for Women: Is it Safe?

While finasteride is primarily prescribed for men, finasteride hair loss for women can be an option in specific cases. Finasteride is not typically recommended for women of childbearing age, as it may lead to birth defects if taken during pregnancy. However, in postmenopausal women or those who are unable to become pregnant, finasteride may be prescribed under close supervision.

Women taking finasteride should be aware of the risks. Finasteride side effects in women can include hormonal changes and potential skin reactions. Always consult a dermatologist or healthcare provider if considering finasteride for female hair loss.

Potential Side Effects of Finasteride

Most people tolerate finasteride well, but there are potential side effects. Common side effects include:

  • Reduced Libido: Some users may notice a decrease in sexual interest.

  • Erectile Dysfunction: A small percentage of men experience difficulty with erections.

  • Mood Changes: Rarely, some users report changes in mood or increased anxiety.

These side effects are usually mild and may resolve over time. If you have concerns, consult your dermatologist.

Stress

Finasteride Alternative Options

For those who may not be suitable candidates for finasteride, there are other options:

What Is Rogaine

Rogaine

Some dermatologists may prescribe medications or topical treatments to use with Rogaine, especially for women with hormonal hair loss.

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Minoxidil

Some dermatologists may prescribe medications or topical treatments to use with Rogaine, especially for women with hormonal hair loss.

iRestore Professional Laser Red Light Therapy for Hair Growth System.jpg

Laser Light

Laser therapy devices, like combs or helmets, can be used along with Rogaine to stimulate hair growth.

PRP

Platelet-Rich Plasma (PRP)

PRP is a treatment where a small amount of your blood is taken, processed, and injected into areas with thinning hair. This stimulates hair follicles, leading to thicker hair.

Finasteride FAQs

Is finasteride needed if on spironolactone?
Finasteride may not be necessary if you're already taking spironolactone, as both work to reduce androgen-related hair loss. Consult your doctor to determine if both are required for your treatment plan.

Is finasteride safe for women?
Finasteride is generally not recommended for women of childbearing age due to the risk of birth defects if they become pregnant. However, it may be prescribed for postmenopausal women under medical supervision.

Does finasteride cause weight gain?
Weight gain is not a common side effect of finasteride. If you experience significant weight changes while taking the medication, consult your doctor.

Can you take finasteride and minoxidil together?
Yes, finasteride and minoxidil can be used together. This combination is often more effective for treating hair loss than using either treatment alone.

Can women take finasteride?
Yes, women can take finasteride, but it is primarily prescribed for postmenopausal women or those who cannot become pregnant due to the risk of birth defects.

How long does finasteride take to work?
Finasteride typically takes 3-6 months to show noticeable results. Continuous use is necessary to maintain hair regrowth and prevent further hair loss.

Does finasteride regrow hair?
Finasteride can help regrow hair by preventing the miniaturization of hair follicles caused by DHT. However, it is more effective at slowing hair loss than regrowing significant amounts of hair.

Does topical finasteride work?
Yes, topical finasteride has been shown to be effective for hair loss with fewer systemic side effects compared to oral finasteride. However, it is less commonly used and requires a doctor’s prescription.

Does finasteride lower testosterone?
Finasteride does not significantly lower testosterone levels. Instead, it reduces the conversion of testosterone to dihydrotestosterone (DHT), which is responsible for hair loss.