Dutasteride vs Finasteride for Hair Loss 😱


Dr. Sam Bailey


Published on May 20, 2019

Dutasteride vs Finasteride. This video is about whether Dutasteride or Finasteride is a better option for hair loss. Dutasteride vs Finasteride - for Hair Loss.

Male pattern baldness is the most common type of hair loss that develops in men. The age it first starts is variable, where about 30% of men aged 30 years will have significant balding. Nearly all men have some hair loss by the age of 60 years. Usually it will take 15-25 years to go completely bald, but for some men it will take less than 5 years.

Hair begins to thin at the temples and on the top of the head. A bald patch gradually develops in the middle of the scalp. Over time, the sides and crown balding gradually enlarge and join together, leaving a patch at the front.

In men with male pattern baldness testosterone levels are normal. Cells in the skin (scalp) convert testosterone to another hormone dihydrotestosterone. For unclear reasons, affected hair follicles become more sensitive to dihydrotestosterone and shrink. When the follicles shrink, each new hair is thinner and grows for a shorter amount of time until the hair does not grow out to the skin surface. It is unknown why only the scalp is affected and not facial or body hair. This condition is inherited, and various genes have been identified.

The best evidence for reducing hair loss is with a medication called Finasteride.

The difference between Finasteride and Dutasteride is that Finasteride has been around since the 70s and is very well studied and is FDA approved for hair loss. Whereas Dutasteride has only been around since 2001 and isn’t approved by the FDA for hair loss. Finasteride blocks 70% of dihydrotestosterone, while dutasteride blocks 90%.

Dutasteride is also known as Avodart or Terod. It blocks two enzymes involved in converting testosterone to dihydrotestosterone, which helps the hair follicles enlarge back to normal. In other words, Dutasteride is more effective at blocking DHT and therefore increasing hair growth.

If treatment is stopped, the balding process will return so you need to carry on with treatment to maintain the effect.

Side effects are uncommon, with 2% of men treated reporting a loss in sex drive (libido) and erectile dysfunction. There are no long term studies on Dutasteride, as the medication has only been available since 2001.

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