What's Inside

23 actives.
Zero secrets.

Every ingredient below shows its dose and the studied benchmark it's held to. If a number ever looks small to you, check it against the research. That's the whole point of printing it.

Pillar 01

Strength

5 g
Creatine Monohydrate

The most studied performance molecule in existence. Strength, power, recovery, and growing evidence for memory and mental speed. Micronized so it mixes in cold water.

Studied range 3 to 5g a day. Top of range
1 g
Taurine

Cell hydration, exercise performance, and the amino acid a landmark 2023 aging study put on every optimizer's radar.

Studied range 0.5 to 3g a day
150/200 mg
Sodium + Potassium

Light electrolytes so the stick hydrates instead of just dissolving. Also makes it taste like something real.

Daily hydration support
Pillar 02

Beauty

5 g
Collagen Peptides

Hydrolyzed peptides for skin elasticity, hair, nails, and joints. Paired in the same stick with the vitamin C your body requires to actually build collagen.

Studied skin range 2.5 to 5g a day. Top of range
120 mg
Hyaluronic Acid

Holds water in skin from the inside. The studies on skin hydration cluster right at this dose.

Studied range 120 to 240mg a day
500 mcg
Biotin

Hair, skin, and nails at 16x the daily requirement, deliberately under the mega doses that skew thyroid and cardiac blood tests. Your bloodwork matters more than a label flex.

1,667% DV. Honest by design
Pillar 03

Mind

250 mg
Citicoline

Choline your brain turns into acetylcholine, the focus neurotransmitter. The full studied dose, in the stable form.

Studied range 250 to 500mg a day
500 mg
Lion's Mane

Real fruiting-body extract, beta glucan verified, never mycelium on grain. Cognition and nerve support.

Extract dose 500mg to 1g a day
200 mg
L-Theanine

Calm focus without sedation. The reason ONCE sharpens your morning without a milligram of caffeine.

Studied range 100 to 400mg a day
Pillar 04

Longevity

300 mg
Nicotinamide Riboside

The NAD+ precursor with the strongest human safety record. NAD+ runs cellular energy and repair, and declines with age.

Studied standard: 300mg/day
1 g
Calcium Alpha-Ketoglutarate

The Krebs-cycle molecule the longevity community actually takes. Supports cellular energy and healthy aging, and it carries 190mg of calcium as a bonus.

Studied dose: 1g/day
750 mg
TMG (Betaine)

Methyl donor support. Anyone who knows NAD+ boosters knows you take TMG alongside, so it's already in the stick.

Studied range 500mg to 1g a day
1 g
Glycine

Sleep quality and collagen synthesis. Naturally sweet, which is one less artificial thing in the flavor system.

Studied range 1 to 3g a day
Pillar 05

Calm

600 mg
Ashwagandha KSM-66

The branded root extract with the clinical trials, at the top of the studied range for stress and cortisol. The edge comes off; the focus stays.

Studied range 300 to 600mg a day. Top of range
Pillar 06

Health. The Floor

100%+
Complete Methylated Multivitamin

A, C (500mg), D3 (2,000 IU) paired with K2, E, and all eight B vitamins in methylated forms. The versions your body uses directly.

Full DV coverage, morning-dosed
200 mg
Magnesium Glycinate

The deficiency most people actually have, in the gentle chelated form. Muscle, nerves, sleep quality, 300+ enzymes.

Covers the typical dietary gap
11 mg + 1 mg
Zinc, Balanced With Copper

Daily zinc slowly drains copper, so ONCE carries both at an 11:1 ratio. The detail that tells you a formulator gave a sh*t.

100% DV each, correctly paired
100% DV
Iodine · Selenium · Chromium · Boron · Traces

Thyroid and micronutrient coverage most "optimizer" formulas skip. Selenium as selenomethionine, boron at 3mg for bone and hormone support.

The multivitamin claim, made honest
10B CFU
Spore Probiotic + 1.5g Inulin

Bacillus coagulans survives the stick, the shelf, and your stomach acid, and the inulin in the same scoop is literally its food. A synbiotic, pre-assembled.

Shelf-stable spore form
What's Not Inside

Left out on purpose

Caffeine

ONCE works at 6am or 6pm and stacks under your coffee instead of fighting it.

Deliberate exclusion
Iron

Iron needs vary too much person to person to dose blind. If you need it, dose it deliberately. We'll tell you who should.

Deliberate exclusion
Omega-3

Fish oil doesn't survive honestly in a powder, so we won't pretend it does. Take a real one. We'd rather lose the checkbox than fake the dose.

Deliberate exclusion
Proprietary Blends

The industry's favorite way to hide a sprinkle. Banned here, forever.

Never
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