Do DHT Blockers Work For Hair Loss? Which Ones Are Most Effective?

do dht blockers work

Do DHT Blockers Work?

Yes, DHT blockers do work. They are typically the number one way to stop and possibly reverse hair loss. But, there are some blockers that are more effective than others.

Do DHT blockers work? The answer depends on a few different things:

  • What type of DHT blocker you’re using. Not all blockers are made equal! Some don’t work at all and some are more effective.
  • How far along your hair loss is. There’s a reason why the earlier you start, the better.
  • It also depends on what you are hoping to achieve. Some men are able to regrow hair and others are only able to halt further thinning. That’s why a DHT blocker isn’t the only recommended medicine for hair regrowth.

Finasteride, the top DHT blocker

The most effective, FDA approved, DHT blocker for hair loss is finasteride.

What does that mean? Essentially, finasteride is a DHT blocker that has had a massive amount of studies done on it. They prove it is very effective at stopping hair loss.

Want to stop hair loss? Get the best DHT blocker here!

Does finasteride regrow hair?

We know that finasteride is very effective at stopping hair loss but, does it regrow hair? Do DHT blockers like finasteride work for regrowing hair?

Yes. Although it’s most effective at stopping hair loss, it’s pretty darn good at regrowing hair too.

However, not all men will experience hair thickening/growth with finasteride. In fact, finasteride isn’t guaranteed to work for everyone, stopping hair loss included. It’s just that this medicine tends to do well for most men so it’s often suggested to start with.

How well does finasteride work? Let’s look closer!

What percentage of men does it work for?

To find out let’s take a look at a study on the use of finasteride for male pattern baldness.

What exactly did the study cover?

The study compared use of finasteride against a placebo group just to see how effective it was.

I’ve paraphrased some of the findings of the study below:

Men in the study had photographs of their scalp taken to compare hair growth. After the photos were judged by an expert panel, an improvement was noted in the hair growth of 48% of the men taking finasteride after a year. The placebo only had a 7% improvement. At two years 66% of the men had better hair growth while the placebo still only had 7% improvment.

So yes, not only does finasteride work well as a DHT blocker, it has increased effectiveness on hair growth the longer you take it.

Finasteride is quoted as taking 3 – 12 months for you to notice a difference. That’s just because hair growth takes time. But, if you didn’t notice much change in that time, don’t be discouraged. It can take quite a while to work. But, if you want to keep your hair or grow it back, it’s worth the wait.

Finasteride does have a few rare side effects that you should be aware of too.


Dutasteride is another kind of DHT blocker. It’s not currently approved by the FDA for hair loss. And as a result, prescriptions aren’t really given out by doctors like they are for finasteride.

This medication is not as well tested as finasteride is at least in the US. That said, it actually blocks more DHT than finasteride. Which could mean it’s even more effective. We’ll have to see once it’s been tested further.

It’s one DHT blocker to keep an eye on in the future.

Natural DHT blockers

There are a large number of natural DHT blockers you can take if you want to avoid a prescription for medicine like finasteride.

Although the side effects for medicines like minoxidil and finasteride are pretty rare, some folks choose to go the natural route to avoid them.

But, be aware! Natural DHT blockers have side effects too!

What kinds of natural DHT blockers are there?

Saw palmetto is the most popular natural DHT blocker out there.

Pumpkin seed oil is another DHT blocker with some results. There is only one study done on it and the results are slightly misleading.

There are plenty of other natural blockers too.

Do natural DHT blockers work?

Some of them do block DHT. That is a fact.

But, these natural or alternative medicines lack the approval of the FDA for hair loss. And that just means they haven’t been rigorously tested for the proper dosage and effectiveness yet.

Their effectiveness tends to be lower than medicines you can get like finasteride.

Do shampoos work as DHT blockers?

There are all kinds of DHT blocking shampoos out there but, it’s hard to tell exactly which ones work. That’s because many aren’t backed by studies just yet. So it can be quite the task to sort through all of the different shampoos for hair loss out there.

Especially with some being all natural and others having specific active ingredients to fight hair loss. Which one do you choose?

Choosing a DHT blocking shampoo

The most popular kind of shampoo for blocking DHT is recommended as a part of the big three solution to hair loss. The big three includes finasteride, minoxidil, and ketoconazole.

Ketoconazole is the active ingredient in a few different shampoos aimed at blocking DHT on a topical level. It’s also one of the most popular active ingredients in dandruff shampoos.

There are additional ingredients that may play a role in blocking DHT too.

Pumpkin seed oil has reportedly produced good results in one hair growth study. Is it due to blocking DHT? The studies are still limited in finding the exact mechanism for why the pumpkin seed oil produced results of if it was pumpkin seed oil at all.

Ingredients that don’t block DHT

DHT isn’t the only issue that causes hair loss. And because of that there are many more ingredients in hair loss shampoos that don’t specifically block DHT but, produce results nonetheless.

Rosemary oil is sometimes included in hair loss shampoos too but, it’s not necessarily a DHT blocker. It just produced results similar to 2% minoxidil.

Biotin is always listed as a vitamin that boosts hair growth. That isn’t necessarily true. Biotin is invaluable as a vitamin for hair growth. But, to say that it boosts new potential growth is wrong.

Straight biotin supplements are typically only useful for those who have vitamin deficiencies. A Biotin deficiency can cause hair loss.

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