How Often do you Wash and Shampoo your Hair?

Update: US showerhead water flow rules are now under scrutiny. This follows criticism from President Donald Trump regarding slow shower water flow negatively impacting his hair routine and styling.


When I had perfect hair before age 18, I used to wash my hair 5-10 times a month. Usually only after being outdoors, playing sports or swimming in the pool. Even more shocking, I would use shampoo on my hair just a few times a year. Typically, on days when I went to the beach. Nowadays, the NoPoo method of avoiding shampoos is increasingly popular.

Back then, whether I was washing my hair (with a shampoo or without one), I tended to use cold water. Nowadays, I usually wash and rinse my hair daily using hot water from the shower. Even though hot water tends to dry out the scalp in winters.

Poll: How Often do you Shampoo your Hair when Washing it?

I initially wanted to conduct two polls:

  1. How often do you wash your hair (with or without using  shampoos and conditioners)?
  2. How often do you shampoo your hair when washing it?

Instead I am only doing the second poll. Feel free to comment to this post about how often you wash your hair with shampoo versus without shampoo. Most dermatologists seems to suggest shampooing at least 2 times a week.

Edit: Poll ended in an hour due to the plugin having a new extremely low limit for page views in their free version.

Of the almost 40 people who voted before the limit was reached, the most popular choices were 7 times a week (or more); 2 times a week; 6 times a week; and 3 times a week. The average person seems to wash his or her hair with shampoo 3-4 times per week.

How Often do you Wash your Hair with Shampoo
How often do you wash your hair with shampoo?

Frequency of Shampoo use

After my hair loss and dandruff started in my 20s, I was forced to wash my hair almost every single day. This continues to this day. I usually use a dermatologist recommended dandruff shampoo twice a week. On the other five days, I just wash my hair with plain water.

Overuse of shampoos can dry scalp hair and skin, and strip the scalp off its natural oils and minerals. Harsh chemicals and additives in shampoos may kill more than just bacteria. Washing hair daily with a shampoo has both its pros and cons. People with curly hair or oily skin may get different reactions to those with neither. People with clogged pores and excess sebum might require more frequent cleansing.

Many people think that human hair is self-cleaning and does not require shampoos. Unfortunately, once you start washing and shampooing your hair daily, it becomes extremely difficult to stop.

Women tend to use shampoos more frequently then men. A Norwood 5 or higher scale of hair loss in a man will make it easier to wash hair less frequently. Women tend to have a more generalized pattern of thinning hair loss and rarely go completely bald.

Washing Hair with Shampoo.
Washing Hair with Shampoo.

NoPoo Method

The “Nopoo” method and movement (see Reddit and wiki) entails people never using environmentally damaging shampoos to wash their hair. This makes obvious sense, since humans never used shampoos for most of our history.

Moreover, increasing evidence suggests that hair loss rates have increased in humans during the past half century. So the advent of shampoos has not really helped us when it comes to less baldness or thicker hair.

In developing countries, the majority of poor people rarely or never shampoo their hair. Even in the developed world, there are some cases of people who never shampoo their hair. Actor Gary Barlow did not even wash his hair for 14 years, forget shampooing. In the UK, a number of well known people such as politician Matthew Parris have touted their NoPoo lifestyles.

Dr. Takashi Tsuji’s Hair Loss Cure will be Costly

For those of us who have followed hair loss cure research over the past decade, the number one person of interest is Japan’s Dr. Takashi Tsuji. He previously announced the aim of releasing a hair loss cure by the end of 2020. This was prior to the onset of the current global pandemic. Dr. Tsuji’s work is occurring at RIKEN’s major research center in Kobe, Japan. And he is partnering with locally headquartered Organ Technologies and Kyocera.

Update: August 8, 2020

Takashi Tsuji Clinical Trials
Takashi Tsuji Human Clinical Trials in 2020.

Youngjet added a summary video of his attendance of Dr. Tsuji’s Zoom lecture. On Twitter and Youtube, he told me that human clinical trials will start in 2020 after approval from the relevant Commission for Regenerative Medicine. To be honest, this is disappointing news as I was hoping human trials already started earlier this year.

Youngjet’s prior video at the bottom of this post and past statements from Dr. Tsuji both indicated faster progress. In any case, trials in Japan will not take as long as in the west, especially in the autologous regenerative medicine sector.

Update: August 6, 2020

Dr. Tsuji replied to my email, and it seems like no new announcements in the August 5 presentation:

Dear Admin,

Thank you for your interest in our research. There was no updates because the lecture was for graduate school students aiming to get fundamental knowledge. For further information, please refer to our laboratory website for the latest news on the progress of our research projects. Our laboratory is striving to advance research with the aim of fulfilling the expectations to improve quality of life for many individuals. We thank you for your patience and continued support of our research activities.

Sincerely,
Takashi Tsuji
Laboratory for Organ Regeneration
RIKEN Center for Developmental Biology Research (BDR)

Update: August 4, 2020

Dr. Takashi Tsuji Zooming in August

By now, most readers know that Dr. Takashi Tsuji is participating in several Zoom and web based online presentations in August 2020. I have sent a few messages to Fuji Maru and to ハゲリーマンちゃんねるin case they can attend any of these events. I will update this thread if they or others send me any new information.

Dr. Tsuji will be presenting via a Zoom conference on August 5, 2020 (h/t reader “Karl” and “RolfLeeBuckler” on HLT):

Then, on August 24 and August 25, Dr. Tsuji and RIKEN will be making a  two-part web presentation.

  • Part 1 = “Of hair science front line: from the basics of innovation to beauty and health.”
  • Part 2 = “Overview of new products for FY2020.”

Also keep an eye on RIKEN’s Facebook page, and on Organ Technologies’ website.

Takashi Tsuji Web Presentation
Takashi Tsuji Web Presentation on August 24 and August 25, 2020.

Update: June 26, 2020

Dr. Takashi Tsuji New Interview

Recently, a number of readers have asked about Dr. Takashi Tsuji’s January 2020 article and interview in a Japanese magazine. Earlier today, reader “Lurker10” managed to purchase it from here and also posted it on Imgur! Keep in mind that all the information in this article is from prior to the Covid-19 pandemic. So there could be some delays in the work’s progression. Update: It seems like the interview mostly covered Dr. Tsuji’s historical hair loss research related work per reader comments and translations.

Dr. Takashi Tsuji in 2020
Dr. Takashi Tsuji in his lab in 2020.

Baldness will be Extinct

Update: August 14, 2019 — English version of below video is now published. Title: “Baldness will be Extinct! The Time has Come!!”

July 22, 2019

In June 2019, Dr. Tsuji gave some interesting quotes to the Financial Times about the future importance of Kobe when it comes to medical tourism. Also in June, Dr. Tsuji gave an important 4 page interview to Beyond Health.

Dr. Tsuji: Hair Loss Cure in 2020 or 2021

Recently, a Japanese hair enthusiast named “Youngjet” posted a video regarding his attendance of a recent lecture in Japan by Dr. Tsuji. Five people emailed me or commented on here about the below video!

After you translate the video, it seems like Dr. Tsuji will release his cure in 2020 and/or 2021. It will initially cost 20 million to 40 million Japanese Yen ($190,000 – $380,000 per today’s exchange rates). Prices will then slowly come down over the next decade.

Perhaps Dr. Tsuji gave us two numbers (20 million and 40 million) because some people will have one session and some will have two sessions?

Note that as of 2019, they are already testing this treatment in humans. Favorable Japanese regulations probably allow for this possibility, even though clinical trials are yet to be completed.

Make sure to see the results of my 2016 poll on how much you would pay for a hair loss cure. Only 12.5 percent of you voted for over $100,000!

— The guy (“Youngjet”) in the below video has the following Twitter account.

— Another Japanese person named “Tonegawa” has more information on these developments.

Perhaps the most important screenshot from the above video:

Hair Loss Cure in 2020 or 2021.

Hair loss cure news blog. Hair cloning and multiplication for baldness. The latest news in hair regeneration treatments for androgenetic alopecia.