The science
Dosed by the research. Graded by the evidence.
Some ingredients have decades of human research behind them. Others sit at the frontier of new discoveries. Every claim carries its grade, so you can see the science at a glance.
Three grades, one question
How much human evidence stands behind this claim? Each grade sits right beside the claim it measures, and no grade is hidden.
Established
Consistent results across many well-run human trials
As close to settled as nutrition gets.
Creatine · Omega-3 · Magnesium · Vitamin D3 · Immune Support
Growing
Encouraging human trials, building year by year
A research-backed part of a daily routine.
CoQ10 · Ashwagandha · Collagen · Probiotic
Frontier
Promising human research, growing fast
New discoveries every year, and we follow each one.
NMN · NAD⁺ · Resveratrol · Lion’s Mane · Colostrum
How we grade
People before petri dishes
Randomized human trials count far more than cell or animal studies. Mechanism is interesting. Outcomes in people earn the grade.
The dose that was studied
We compare our dose with the doses used in the research, and print every amount on the label. Where a formula is a blend, like our probiotic, we name every strain and the total count.
Reviewed as research moves
We weigh recent, well-run human trials and reviews most, and revisit every grade as new research is published. Last reviewed October 2026 by the Cellovi team.
Ingredient by ingredient
Where the human evidence stands today, in plain language, next to the dose in each serving.
Creatine Monohydrate
EstablishedRated the most effective nutritional supplement for high-intensity exercise and lean mass during training by the International Society of Sports Nutrition, with new research on memory.*
Per serving: 5 g per scoop
Omega-3 Fish Oil
EstablishedUS adults average about 90 mg of EPA and DHA a day from food, well short of the 250 mg that two servings of fish a week provide. Supplements reliably raise blood levels.*
Per serving: 180 mg EPA + 120 mg DHA
Magnesium Glycinate
EstablishedNeeded by more than 300 enzymes, including those behind muscle and nerve function. Glycinate is gentle on the stomach, with growing research on sleep quality.*
Per serving: 275 mg elemental magnesium
Vitamin D3 + K2
EstablishedA common shortfall, especially with little sun. Supports bone, muscle and immune function, with K2 to help direct calcium to bone.*
Per serving: 5,000 IU D3
Immune Support Complex
EstablishedVitamins C, D3 and B6 and zinc, each with a well-established role in normal immune function, plus elderberry and echinacea from traditional herbalism.*
Per serving: 180 mg vitamin C, 1,600 IU D3, 11 mg zinc
CoQ10
GrowingPart of how your cells make energy, and levels fall with age. A 2022 review of 13 human trials found less fatigue with daily CoQ10.*
Per serving: 200 mg ubiquinone
Ashwagandha Plus
GrowingHuman trials on everyday stress and sleep, with the strongest results at 500 to 600 mg a day, the amount of KSM-66® in each serving.*
Per serving: KSM-66® 600 mg
Grass-Fed Collagen Peptides
GrowingHuman trials on skin elasticity and hydration keep adding up: a 2023 review pooled 26 of them.*
Per serving: 20 g collagen peptides per scoop
Probiotic 40 Billion
GrowingFour named strains: three were tested together in a placebo-controlled trial on digestive comfort, and B. lactis is backed by a meta-analysis on regularity.*
Per serving: 40 billion CFU
NMN
FrontierBacked by a fast-growing set of randomized human trials since 2021: NMN raises blood NAD⁺ levels, with promising findings on walking endurance and muscle performance.*
Per serving: 500 mg β-NMN per capsule
NAD+
FrontierNAD⁺ is the coenzyme your cells use to make energy, and levels decline with age. We pair it with quercetin and resveratrol, plant polyphenols also found in onions, apples and grapes.*
Per serving: 500 mg NAD⁺
Resveratrol
FrontierA plant polyphenol with encouraging human trial results on healthy blood vessel function and blood flow to the brain. In one trial, the blood vessel response rose with the dose.*
Per serving: 600 mg per capsule
Lion's Mane
FrontierA culinary mushroom with fast-growing human research: placebo-controlled trials link it to faster attention after a single dose and better cognitive test scores after 12 weeks.*
Per serving: 1,000 mg organic lion’s mane
Colostrum Powder
FrontierNaturally rich in IgG immunoglobulins and studied in many human trials, including low-dose studies on gut barrier function and healthy immune markers.*
Per serving: 2,300 mg colostrum
Ceremonial Matcha
Matcha is a tea, enjoyed as a food, so it carries no graded claim. Its Learn article covers the research on caffeine with L-theanine.
Our sources: the human trials and reviews linked in each Learn article, the NIH Office of Dietary Supplements fact sheets, and the EU register of authorized health claims.
Every ingredient listed. Every dose in the open.
Our supplements are made in the USA with globally sourced ingredients, in GMP-certified, independently audited facilities, and third-party lab tested. Our matcha is grown and stone-ground in Kyoto, Japan. Every ingredient and its amount per serving is on the label and in the Supplement Facts on each product page.
- GMP-certified facilitiesAudited, third-party lab tested
- Evidence, gradedEstablished, Growing or Frontier
- Real doses, on the labelDosed by the research
- Free US shippingOn $50 or more, and every subscription
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