“Providence has given us hope and sleep as a compensation for the many cares of life.”
Voltaire
Science
Two thousand years of watching. Seventy years of measuring. One evening stick.
ScrollZenthya Science
Why we chose these ingredients.
- 8 ingredients
- Every dose on the label
- 0 mg added melatonin
Explore the herbal traditions, extract specifications, and ingredient research behind Deep Restore No.21. See the amounts in our formula and how they compare with the preparations studied.
Herbal traditions, considered closely
Three ways to look closer.
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01 / The formula
Ingredients & Research
Meet every featured ingredient, see the amount in each stick, and explore the studies, with their doses, methods, and limits in view.
See the formula -
02 / The tradition
Ancient Wisdom
Our formula begins with jujube (Ziziphus spinosa) seed. Explore its classical roots, the body's twelve hours, and the evening hour behind No.21.
Read the ancient wisdom -
03 / The biology
Modern Science
Sleep cycles, your internal clock, and the stages of a night. A clear introduction to the biology that makes a consistent evening routine worth keeping.
Read the modern science
Two approaches
Two ways of knowing.
Kept on separate pages, so neither borrows the other's authority.
Modern Science
Measures
Brain wavesHormonesBody temperatureTrials with placebo groups
A claim is only as strong as its trial
Ancient Wisdom
Observes
The hours of the dayThe channels of the bodyThe tongueTwo thousand years of practice
A description is only as strong as its source
Where they agree
Wind down before elevenKeep the same hoursDon't fight the body at 3 AM
Modern Science · Chapter 02
Your body keeps its own time.
Your circadian system helps coordinate daily patterns of sleep and wakefulness. Light helps set that timing, and individual rhythms vary. The Hour of Hai inspires our evening ritual — a reminder to begin winding down in a way that fits your own rhythm.
A formula that begins with jujube seed
8 ingredientsEvery dose on the label1 stick · 3 g
Rooted in Eastern herbal tradition, jujube seed gives Deep Restore No.21 its botanical starting point. We pair it with reishi, poria, and chamomile, alongside glycine, L-theanine, GABA, and magnesium. Each ingredient is named. Every featured amount is shown.
Meet all eight ingredients- Jujube seed, 600 mg
- Reishi, 300 mg
- Poria, 250 mg
- Chamomile, 100 mg
- Glycine, 1,000 mg
- L-Theanine, 200 mg
- GABA, 100 mg
- Magnesium, 30 mg elemental
Full-spectrum extracts. Named parts, stated ratios.
Our formula uses full-spectrum extracts of selected botanicals and mushrooms. For reishi, poria and chamomile we name the plant part used and the extract ratio, so you can see what is in every stick.
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Jujube seed
Seed
18:1
extract ratio
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Reishi
Fruiting body
10:1
extract ratio
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Poria
Sclerotium
10:1
extract ratio
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Chamomile
Flower
10:1
extract ratio
A 10:1 ratio means about ten parts of the dried plant part were used to make one part of extract.
Does full spectrum mean the whole plant?
No. It describes an extract's range of constituents. We identify the part used: jujube seed, chamomile flower, reishi fruiting body, or poria sclerotium.
Rooted in research
Clear about what research can tell us.
Traditional use explains part of our formulation story. Ingredient studies help us examine it. We identify whether a study involved people, animals, or laboratory models, and whether its preparation and dose match ours. Research on an ingredient is not a study of Deep Restore No.21 itself.
Deep Restore No.21
The research, in one evening stick.
Jujube seed, reishi, poria and chamomile, with glycine, L-theanine, GABA and magnesium. An evening herbal dietary supplement powder to support restful sleep.*
- 21 evenings
- No added melatonin
- Ships November 1st
$26.95Early-bird pre-order · $39.95 after launch
