Bryan Johnson Profile picture
Oct 22, 2024 12 tweets 6 min read Read on X
Genetically, I should be bald.

I started to lose my hair and go gray in my late 20s.

Now, at 47, I’ve got a full head of hair and ~70% of my gray is gone.

Here how I did it.. 🧵 Image
Contrary to popular belief, you can maintain your hair well into your 40s and beyond.

In 12 months, I went from a Norwood 3 to a Norwood 2. Norwood is a hair loss scale, as indicated in the image.

Here’s how I achieved these results:
Image
1. Start early:

Don’t wait for visible loss.

Many lose up to 50% of their hair before they even realize it.

The best time to work on your hair is before you start losing it. Sources (1) (2)
2. Nutrition:

Make sure you're getting adequate:

+ Protein: including collagen peptides and sufficient methionine, cyteine, and lysine in addition to taurine, to support collagen, keratin, and elastin synthesis. Ref (3)

+ Omega-3 fatty acids: for antioxidant effects and improving scalp circulation. Ref (4)

+ Key vitamins & minerals: including iron, selenium, and biotin. Ref (3)

The Blueprint stack has all of these. ↓Image
3. Customized topicals:

I use a personalized Rx formula based on my genetics to prevent and reverse hair loss. Roots byGA (5)

Here are the ingredients in my formulation: Minoxidil (7%), Cetirizine HCl (1%), Latanoprost (0.004%), Dutasteride (0.25%), Melatonin (0.1%), Caffeine (0.2%), Tretinoin (0.0125%), Vitamin D3 (1,000IU/ML), Vitamin E (10 IU/ML).

5% minoxidil is a solid budget alternative. Apply 1 mL to scalp at night or in the morning (or both), massage thoroughly.

Note that some people experience side effects with a topical such as itchy skin, headaches etc. so monitor for those.
4. Red light therapy:

Six minutes a day and you can be doing your morning routine as you wear it. A study on 44 males (age 18-49) showed that treatment with 655nm laser cap for 25 min every other day for a duration of 16 weeks resulted in a 39% increase in hair growth compared to placebo. Ref (6)

An affordable Blueprint red light cap coming soon.
5. Oral minoxidil:

I take 3.75 mg a day. I started with 2.5 mg and evaluated for side effects.

In a double-blind, placebo-controlled randomized clinical trial involving 90 men with androgenetic alopecia AGA, oral minoxidil (5 mg daily) was found to have similar efficacy to topical minoxidil (5% solution applied twice daily) after 24 weeks.Ref (7)

Oral minoxidil is generally considered safe at low doses, but it can have side effects such as hypertrichosis (excessive hair growth) and headaches.Image
When starting any new hair regimen:

+ Start slow
+ Introduce 1 product at a time
+ Monitor closely for side effects
+ Give each addition 3 months to show results
+ 5% minoxidil alone is sufficient for many
+ Consider personalization based on your genetic profile, health, diet type and nutritional condition to reverse any deficiencies (e.g. omega3, protein...) revealed by blood testing.
In December, I'll have a hair growth serum for you. I've been experimenting and refining the formulation for two years.
A final note that I’m in touch with several companies that are building novel hair regrowth therapies. They are promising and exciting.

They’re still years out but it’s cool to think that hair loss may no longer be a thing we have to think about. Just one reason why the future is going to be amazing. #dontdie
For my full protocols and guides visit Project Blueprint here:

blueprint.bryanjohnson.com/pages/blueprin…

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More from @bryan_johnson

Mar 7
Dear humanity,

I am building a religion.

Wait a second, I know what you’re going to say. Hold that knee-jerk reaction and let me explain.

First, here’s what’s going to happen:
+ Don’t Die becomes history's fastest-growing ideology.
+ It saves the human race.
+ And ushers in an existence more spectacular than we can imagine.

It is inevitable. The only question is: will you be an early or late adopter?Image
Why is it inevitable?

Four fundamental shifts are happening right now:
1) We are giving birth to superintelligence (AI).
2) No existing ideology solves AI alignment.
3) With AI, our species’ survival is not guaranteed.
4) With AI, individual biological death is no longer inevitable.

We are at risk of extinction without a unifying framework to solve human alignment and AI alignment.Image
Why Don’t Die?

All existing frameworks are too narrow…
+ Democracy governs civic matters
+ Capitalism dictates wealth
+ Religion cares for the soul

Don’t Die speaks fluently with…
+ the universe through physics
+ AI via mathematics
+ software via computation
+ living things via biology
+ humans via storytelling
+ truth via memetics

Don’t Die is a universal translator and the grand unifying theory of existence.Image
Read 15 tweets
Mar 5
I am aging slower than anyone in the world.
#1 in a fierce competition among 5,677.
My score is off the charts.
And I'm genetically disadvantaged.

What does this even mean? 🧵 Image
0/ Biological Aging is mostly driven by the environment, habits and lifestyle choices and is malleable to interventions.

Unlike chronological aging, biological aging is malleable and is a direct outcome of your behaviour and lifestyle choices. A seminal study in over 2000 twins (gold standard for studying genetic effects) found that longevity was only 25% hereditary.

In other words, your genes determine only 25% of your biological aging speed and patterns, while the rest (75%) is up to you to decide and influence.

Speed of aging is the most dynamically responsive as it relies on estimating the speed of aging from a snapshot in time, hence allowing a quick intervention-measurement loop, allowing for the fast evaluation of therapies and protocol for their effectiveness as rejuvenation interventions.

Biological Age will normally follow the speed of aging, with some considerable delay for trends to appear.

Imagine a car changing its speed, you will be able to see the change directly at the speedometer (speed of aging) much faster than seeing when you reach your destination based on the new speed.Image
1/ What are DNA methylation biological aging clocks?

DNA methylation is a process where methyl groups are added to DNA, acting like switches that can turn genes off (other epigenetic switches are on-switches, like DNA acetylation).

This affects how our cells read and express genes, and as we age, these switches change in predictable ways.  Age-associated alterations in the mammalian DNA methylome are well-documented and thought to promote diseases of aging, such as cancer.

DNA methylation biological aging clocks use these changes to estimate a person's biological age, which can differ from their chronological age (how many years they've lived). These clocks are developed by identifying specific DNA sites (CpG sites) where methylation levels correlate with age, creating a model to predict biological age.

These clocks are acknowledged as highly accurate molecular correlates of chronological age in humans and other vertebrates.Image
Read 8 tweets
Mar 4
People living in hotter climates age faster

Published this week a study used three distinct epigenetic aging clocks to show that more hotter days on average (caution-level and extreme level heat) make you age faster. 🧵Image
Background

0/ The study tracked biological age in 3686 adults over 56 years across the US in relation to outdoor ambient heat exposure.
1. Comparisons were done for short and long-term differential exposure to outside heat based on daily heat index, as assessed by number of heat days: (heat caution= 80° to 90°F (26.7° to 32.2°C); 90° and 103°F (32.2° and 39.4°C)) as provided by the National Weather Service based on the participants’ home address.
Read 7 tweets
Feb 28
The LA fires filled my body with harmful toxins.

One toxic chemical, NAPR, an organic solvent used in metal cleaning, foam gluing, and dry cleaning, increased by 728%.

If you were exposed too, here is what you can do. 🧵 Image
0/ I suppose if there was one person in LA who was routinely measuring their toxin levels when the fires broke out, it would be me.

My urinary toxins panel taken at the height of the LA wildfires on January 28th, 2025 showed 9 acutely increased metabolite toxins (4 of which above the 95th percentile and the other 5 between the 75th and 95th percentile).

A similar previous panel taken in October 2024 had all these toxin metabolites within normal or undetectable range.

Note, in-between the baseline test of Oct 2024 and the most recent test of Jan 28th, I spent a week in India which may have also contributed to an increased toxin load. More on that below.

Let us take a closer look at these metabolites, what toxic exposures and health hazards they indicate, and how these tie to wildfire and burning homes, as well as air pollution in general.

Let us also examine efficient approaches to the detoxification of wildfire fumes inhalation.
1/ Almost all the elevated toxic metabolites come from exposure to the fumes of burning plastics and synthetics from homes, rather than burning trees in the wildfire itself.

The acutely elevated toxic metabolites in my urine sample from January 28th, 2025 can be categorized in three groups based on the source.

1) Phthalate metabolites
2) Metabolites of Volatile Organic Compounds (VOCs)
3) Other metabolites including; herbicides, styrenes (insulation materials), and perchlorate (flammable agent)

Let us explore each metabolite, its origin, how it relates to wild and urban fires, and what risk and hazards it poses.
Read 11 tweets
Feb 24
The New York Times is preparing to publish a hit piece on me.

I found out this story is running because a reporter from NYT emailed me and my colleagues her “fact-checking” questions. This is standard practice before publishing a story.

“I am working on a story about Bryan Johnson and his weaponization of non-disclosure agreements over the years to cover a range of bad behavior…”

This journalist is trying to construct a narrative about me.

Let’s take a look at what she’s trying to do.🧵
Step 0: Motive.

Why is The New York Times coming after me? It’s a clash of self-serving narratives:

1. The New York Times wants a sensational story. Clicks = money.
2. The journalist wants to “take down” another target.
3. My ex is chasing clout by recycling allegations that have already been rejected in two legal forums.
4. Don’t Die is growing fast, threatening status-quo power. This makes me a target.

I’m fortunate that I have social reach. But what’s really unfair is when this happens to people who have limited recourse.

This isn’t just about me, this is about how the media manufactures reality. If a journalist is going to try and construct a narrative about any one of us, we should evaluate the foundation it’s built on.
Step 1: Establish the Pretext for a Smear

For five years, my ex has been trying to extract money from me and one of her principal tools has been a series of false allegations.

All her attempts have failed.

Two separate legal forums ruled against her. The arbitrator wrote that her own evidence contradicted her own story. The District Judge not only rejected her claims, she sanctioned and fined her attorneys for their “serious allegations [that were]…factually and legally baseless and frivolous”.

She was ordered to pay me $500k.

And yet, here we are. A New York Times reporter is reviving accusations that were twice rejected by two legal forums, repackaging them for clicks. The journalist knows it’s easier to manipulate public opinion.

This is how the media operates: if they can’t get you legally, they try to get you socially. They don’t need truth. They need narrative.
Read 12 tweets
Feb 18
Last week, @chamath and I had dinner. He had this to say:

"Bryan's skin is incredible. His skin is like a porcelain dolls. Both my wife and I were like, we've never seen skin like this. It's incredibly soft. It's the softest skin I've ever touched in my life."

Supple skin is proof of young biological age, and a power-law marker of systemic health and efficient rejuvenation.

Let's look at the science 🧵
0/ Supple skin is proof of young biological age, and a power-law marker of systemic health and efficient rejuvenation

Achieving supple skin at 47 is far more than a cosmetic milestone—it's a potent, integrative indicator of overall health. In many biological systems, vital functions follow a power-law distribution, where small improvements in underlying systems can result in disproportionately large benefits in overall function.Image
1/ Here's what's behind supple skin

Supple skin is the product of complex mechanisms working optimally in synchrony, which signifies that your body is effectively countering age-related degradation and malfunctioning at multiple levels.

This robust state not only delays the visible signs of aging but also suggests that your cellular and metabolic functions are operating efficiently—a hallmark of lower biological age and enhanced longevity.
Read 5 tweets

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