A nightly ritual · Coming 2027

Build the
arc.

Most supplement brands sell you the next thirty days.
ARC is designed for the next thirty years —
non-habit-forming sleep, built to compound.

10,950 Nights in 30 years
7 Ingredients · clinical doses
1 Decision · end the rotation
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ARC Nightly — ceramic dispenser with stick packs
A worldview

The arc is already
in progress.

The people who fire at seventy-five didn't stumble into it. They made a decision at forty-one and held the line — quietly, nightly, in a way that didn't look like ambition from the outside. Ten thousand nights of an unremarkable ritual. No single night changed anything. All of them changed everything.

The Ritual · ARC Nightly

One night.
One ritual.
One arc.

A clinically dosed nightly stack — formulated for sleep architecture, recovery, and the hormonal foundations of long-term vitality. No twelve-pill stacks. One ritual.

  • 01 Magnesium Glycinate Albion-sourced. The only form that works for sleep. 400 mg
  • 02 L-Theanine Suntheanine. Calming without sedation. 200 mg
  • 03 Apigenin GABA-A modulation. Undermarketed at clinical doses. 50 mg
  • 04 Glycine Body temperature regulation. Deeper sleep architecture. 3 g
  • 05 Inositol Anxiety regulation. Hormonal support. 2 g
  • 06 Melatonin Low dose. Designed to avoid tolerance. 0.3 mg
  • 07 Ashwagandha (KSM-66) Cortisol reduction. Evening stress clearance. 300 mg
Third-party tested COA per batch NSF facility
Nightly · 9:00 PM
Tonight,
and the next 10,95010,949.
A ten-second ritual built to compound.
01 Tear
one stick
02 Pour into
cool water
03 Drink. Sleep.
Show the work

We publish what's in it,
where it's from, and what it does.

Most supplement brands hide behind proprietary blends. We don't. Every ingredient at clinical dose. Every batch tested. Every COA published.

— 01 —

Clinical doses

Every ingredient at the dose used in published research. No fairy dusting. No proprietary blends.

— 02 —

Real sourcing

We name every supplier. Every ingredient traces back to a source — Albion magnesium, Suntheanine. No mystery molecules.

— 03 —

Per-batch testing

Independent third-party testing on every production run. Heavy metals. Microbiology. Purity. Potency.

— 04 —

Published COAs

Every Certificate of Analysis publicly available. By batch number. Searchable. For everyone.

My grandfather's arc bent at eighty-one. A fall. Then a decline that had been forty years in the making. He was the sharpest person in any room — an engineer, precise and careful at his work — and watching what a lifetime of inattention did to him taught me something I didn't want to learn: most of what determines how you age is built nightly, in habits you never think to question.

I started reading. Attia. Huberman. Walker. The science is clearer than the supplement industry wants you to believe. Sleep is the single greatest leverage point. Recovery is built in the dark. The people who fire at seventy were not lucky. They were patient.

ARC is the brand I wanted to exist when I started paying attention — at thirty-one, before the warning signs, before I had a reason other than having watched what waiting looks like. One ritual. Clinical doses. Built for thirty years.

My grandfather's arc bent. Mine doesn't have to. Yours doesn't either.

Dan Butler — Founder, ARC
The Long Arc

More than a supplement.

A letter, a podcast, a community — for people who think about their lives the way other people think about their portfolios.

— 01 —

The Letter

A printed quarterly mailer. Essays on longevity, sleep, the long view. Sent to subscribers four times a year. On paper, because some things deserve to be held.

— 02 —

The Podcast

Long-form conversations with people who have built impressive arcs — surgeons, athletes well past their prime, founders, artists. Not selling anything. Just thinking out loud.

— 03 —

The Summit

An annual gathering of subscribers. Two days. Fifty people. No keynotes, no sponsors. A small room of people who plan in decades.

Early access · 2027

The first
thousand.

We're shipping ARC Nightly to a small founder's group first. Hand-numbered vessels. Founder calls. The price we'll never run again.

You're in. We'll be in touch.

We'll only reach out when it matters.