For creators

Make your content reach farther than the feed alone.

Your threads are already on Ltrl — rebuilt as pages people can search, credited to you, linked back to the originals, free. Claim yours and it becomes an Archive: threads, posts and videos at one address, still earning readers long after the timeline moves on.

You post it here

XSubstackYouTube
Ltrl

Builds your Archive

Readers find it here

what’s the best treatment for hypothyroidism
GoogleChatGPTGeminiClaudeBingGrokPerplexity

Someone just read this — and wants more.

Dr. Alex Tatem @DrAlexTatem · 4h

Does the testosterone trial everyone cites actually apply to you on injectable TRT?

What happens next?

Without an Archive · they keep scrolling

For you
Following

Riley Hartman @rileyhartman · 2h

day 41 of the 5am thing. genuinely do not know if it’s the sleep schedule or just that i stopped drinking

1231488.1K

Dr. Alex Tatem @DrAlexTatem · 4h

The TRAVERSE trial is the biggest RCT on testosterone and heart risk. It’s cited constantly. But does it actually apply to you on injectable TRT?

2144121.4K96K

Marcus Boyd @marcusboyd · 5h

seed oils aren’t the villain. your sleep is. i’ll take the replies.

312882.1K410K

Ava Chen @avachen · 7h

reading this twice

94965.2K

Dr. Alex Tatem @DrAlexTatem · 9h

Are peptides steroids? Are they ‘cheating’? From a doctor who prescribes steroids and peptides.

14230189264K

Jake Porter @jakeporter · 11h

30 days of cold plunges. the honest version: i slept better for about a week and then it stopped mattering

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Lena Kruse @lenakruse · 13h

does anyone actually know what a normal ferritin is or are we all guessing

61720414K

Dr. Alex Tatem @DrAlexTatem · 1d

BPC-157 and TB-500. Fitness Twitter calls it miracle healing — from a men’s health MD who actually reads the studies.

1883561.2K84K

Sasha Weir @sashaweir · 1d

what i eat in a day, 34, two kids, 45 minutes of free time

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With an Archive · they go deeper

testosterone

Dr. Alex Tatem

@DrAlexTatem · Apr 7

Testosterone

The TRAVERSE trial is the biggest RCT on testosterone and heart risk. It’s cited constantly. But does it actually apply to you on injectable TRT?

2/ Achieved T levels were terrible. Men started at 227 ng/dL…

3/ The entire trial used topical gel — not one patient on injectable…

24 posts

Dr. Alex Tatem

@DrAlexTatem · Apr 1

Peptides

Are peptides steroids? Are they ‘cheating’? From a doctor who prescribes steroids and peptides.

2/ Chemically? Not at all. Steroids are small molecule hormones…

3/ Peptides are short amino-acid chains that signal instead…

28 posts

Dr. Alex Tatem

@DrAlexTatem · Mar 4

Recovery

BPC-157 and TB-500. Fitness Twitter calls it miracle healing — from a men’s health MD who actually reads the studies.

2/ BPC-157 is a 15-amino-acid fragment from human gastric juice…

3/ Mechanisms are legit: nitric oxide, VEGF, new blood vessels…

12 posts

Every reader who finishes a post faces that choice — go deeper, or keep scrolling.
The feed only offers one of them.

The Archive

What an Archive is

Everything you have written, at one address, in your name — organised by what it’s about and attached to the condition and topic pages readers arrive on. Every piece links back to the original on X or Substack, and someone searching the subject finds you months after the timeline moved on.

ltrl.com/providers/chris-masterjohn1

Chris Masterjohn, PhD

@chrismasterjohn · 177 pieces

Search this Archive2

Is Insulin Resistance Really Making Us Fat?3

Substack essay

Insulin resistanceMetabolism4

Vitamin D is Synthesized From Cholesterol and Found in Cholesterol-Rich Foods

Substack essay

What Can Modern Toxicology Tell Us About Food Toxins and Food Intolerances?

Substack essay

1

One address, in your name

Everything at ltrl.com/providers/your-name — one link for a bio.

2

Searchable by subject

Readers find what you wrote on a topic without scrolling a timeline for it.

3

Each essay, as one page

Word for word, in order, and still linked to the original.

4

Attached to what it’s about

Conditions and biomarkers, so it turns up when someone searches the subject.

How the Archive works →

Durability

Social creates a moment. Ltrl builds longevity.

Attention1 yr2 yrs3 yrs52 minutes2 yearsYour post on XYour page on Ltrl
Drawn to scale: three years on one linear axis — an X post’s entire life is the needle at the origin. The two dots are the measured half-lives1; the curves between them are illustrative.

52 min

Half-life of a post on X1

2.03 yr

Half-life of a published article1

Traffic of an article that compounds, versus an ordinary blog post2

1 Graffius, Lifespan (Half-Life) of Social Media Posts: Update for 2026 — 5.6M posts across 11 platforms; blogs: 2.03 years, X: 52 minutes, same engagement half-life definition. 2 HubSpot Research, Compounding Blog Posts — ~20,000 customer blog posts; one compounding post generates the traffic of six decaying posts.

What the Archive gets you

What a claimed Archive does that a timeline can’t.

It stays findable

A page with a title, a URL, and text Google and AI assistants can read.

All of it in one place

One address for your bio, searchable by author — which neither X nor Substack gives you.

Readers get depth

Your taurine thread sits next to the biomarker, the studies and the lab test.

Links that are yours

Booking, following, subscription, and anything else you sell — on every page.

Your strongest threads become articles

Any thread can be rebuilt as a full article, drafted from your Archive and published only when you approve.

It costs nothing

No fee, no posting requirement. Your original stays where you posted it.

We answer the people asking for you*

Replies asking “got more on this?” get answered — from your Archive.

Read more →

* Currently in beta.

Claim your profile to grow

Until you claim it, a page stays exactly as posted — your words unchanged, still linked back to the original, and a note saying you haven’t approved it. Claiming takes about two minutes.

Unclaimed

Your thread, resurfaced

Claimed

Your thread, owned

Effort to startNoneTwo minutes, once
You own the page
Your byline, bio and photo
Your links — booking, and anything you sell
Readers can follow and subscribe
Lands on your condition & topic hubs
Links to the rest of your workReaders get sent to other authorsThey stay on yours
Built for Google & AI searchDiscoveryAuthority
Claim your Archive

Not on Ltrl yet? Apply today

Common creator questions

Why should I claim?

Your name, photo and bio go on every page. Your links — booking, subscribe, whatever you sell — sit at the top of all of them. The rail that currently sends your readers to other authors starts showing your own work instead. And you get to see what people search for inside your Archive.

Later, if you want to, any thread can become a full article with citations. That’s optional, and it happens after.

When does the search traffic show up?

Not next week — and anyone promising that is selling you something. Pages take months to establish in search, and the ones that rank well are usually a year or two old. That’s the point: this is your chance to own the page people find when they search your specialty — not WebMD. The sooner a page exists, the sooner the clock starts.

How much does this cost me?

There’s nothing to pay and no call to book, and reading an Archive needs no account at all — only claiming one does. If that ever changes, it won’t change quietly, and it won’t change for the writing that’s already yours.

Does this compete with my own posts in search?

Social media posts don’t rank in search, which is most of the reason this exists. The page links back to the original post, so traffic that finds the page finds you.

Do I have to keep posting, or post here?

No. There’s nothing to maintain. Keep writing where you write; new threads can be added automatically or not at all, your call.

How did my page get here?

Somebody here reads your work and thought it belonged in the library — the list is handpicked, not scraped at random. From there we unroll public threads the way any thread reader does, and until you claim it the page says plainly that you haven’t. Nothing is published under your byline and no title is attributed to you until it’s yours. If a post disappears from X, it disappears here too, automatically.

Who’s behind it, and what’s the catch?

Ltrl is a health library — conditions, biomarkers, lab tests, and the people who write about them. Good writing attached to that data is what makes the library worth visiting, which is the whole business. There’s no fee.

Your work is already here.

Claiming takes about two minutes and puts your name, your bio and your links on all of it.