Editorial noteListed for comparison and skepticism, not as a NO1GEVITY recommendation. See the AG1 brand page for the full editorial concerns (FDA adverse-event reports under investigation, proprietary-blend transparency, paid-ambassador financial ties).
Label snapshot
What the label says
What the product contains and what one serving costs, according to our catalog. Label amounts are not personal dose recommendations.
Ingredients listed
8 ingredients listed largest listed: Glycine 2,000 mg
Form
Powder
List price (catalog, USD)
$99.00
Price per serving
$3.30Daily use may exceed one serving. List price divided by servings per container. A per-day cost only if the label serving is once daily.
Reading notes
Multi-ingredient product. Amounts are per ingredient per serving; the product is assessed as one bundle, not as a recommendation for each ingredient.
Whether the figure is elemental mineral or compound weight is not stored. Read the label.
The catalog monthly estimate ($79.00) does not equal list price ÷ servings × 30 ($99.00), so the label's daily use likely differs from one serving.
Vitamin amounts shown in µg/mg. Labels may use IU.
Full label record: servings, testing, ingredients
Servings per container
30
Serving size (label)
13 g
Catalog monthly estimate
$79.00Daily use may exceed one serving
Testing disclosure
Brand lists third-party testing; no public lab certificate listedStatus as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.
The extract name and plant part on the label. Extracts are not interchangeable milligram for milligram.
The withanolide percentage, if stated.
Whether the label gives per-capsule or per-day amounts.
Amounts are per label serving as recorded in the catalog and are not a recommendation. Testing status reflects what the brand lists. Nothing here is medical advice.
Editorial score and research-dose calculations
These calculations describe our scoring method. They are not a recommended dose or proof of benefit from this product.
The ingredient was tested in an RCT at the same dose this product sells.
See the 3 supporting studies▾
Gopukumar et al. 2021 (cognition in stressed adults)(Ashwagandha)90-day RCT, 130 chronically stressed adults, 300 mg sustained-release ashwagandha: significant improvements in memory and focus scores plus reduced cortisol. Studied at 300 mg. This product: 300 mg.
How we scored this productShow the full breakdown▾
Dose vs. studies (50%)iWhy 7.8 of 10. Primary ingredient is Magnesium (evidence grade A). It delivers 250 mg, inside the studied range of 200–500 mg. Read the rule →7.8
Transparency (20%)iWhy 5.5 of 10. Earned points for independent third-party testing and all doses disclosed. Lost points for no public certificate of analysis. Read the rule →5.5
Value (10%)iWhy 4.5 of 10. One day at the trial dose costs about $3.96. That is one of the pricier options in the catalog (267 of 313 by cost per effective day). Read the rule →4.5
Formulation (10%)iWhy 5.0 of 10. No published absorption advantage or disadvantage on file. The default of 5 is not a criticism. Read the rule →5.0
Default. No absorption data on file.
Safety (5%)iWhy 8.5 of 10. Baseline 5.0. Third-party testing adds 2.0. Public lab certificate adds 1.5. NSF, USP or Informed Choice certification adds 1.5. Active safety signal subtracts 3.0. Read the rule →8.5
Community sentiment (5%)iWhy 7.3 of 10. No external reviews found, so community sentiment defaults to neutral. Community never counts as clinical evidence. Read the rule →7.3
CompositeiHow this 6.2 is built. 0.50 × 7.8 + 0.20 × 5.5 + 0.10 × 4.5 + 0.10 × 5.0 + 0.05 × 8.5 + 0.05 × 7.3 = 6.2 out of 10. Safety caps applied after.6.2
6.2composite
Dose vs. studies50%7.8
Transparency20%5.5
Value10%4.5
Formulation10%5.0
Safety5%8.5
Community5%7.3
Evidence gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Safety caps applied after weighting.
This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.
This AG1 (Athletic Greens) AGZ: Nightly Sleep Support scores 6.7, making it a mid-tier product with both strengths and weaknesses. It delivers 250mg of Magnesium, inside the studied range of 200–500mg with grade A evidence (strong human trial data). At $3.96/day it's among the more expensive options in Adaptogen.
What drives the score up
Dose-evidence score of 7.8 shows decent alignment with trial doses.
Magnesium is dosed at the full research level with grade A evidence (strong human trial data).
Zinc is dosed at the full research level with grade A evidence (strong human trial data).
Zinc is also dosed at the full research level.
What drags it down
Vitamin B6 (P-5-P) (5mg is 25% of the 20mg trial dose) is significantly under-dosed.
No public lab certificate available for independent verification.
Quality transparency of 5.5 is below the site average.
At $3.96/day it's on the expensive side.
Why you'd choose it
You want Magnesium from a AG1 (Athletic Greens) product.
You want a tested by independent lab product.
You want doses that align with published research.
Why you might skip it
You want a product with a publicly available CoA.
You need a full trial dose of vitamin b6 (this product under-doses it).
You want a cheaper option (this is $3.96/day).
Question 1
Does the molecule work?
The science behind each active ingredient, independent of which brand sells it.
Every active in this formula, its declared dose per serving, the dose used in the primary human trial, how much of that trial dose this product delivers, and the evidence grade for the ingredient itself.
Percentages are dose per serving ÷ primary trial dose. Below 50% means the formula is unlikely to reproduce the trial outcome for that active. Grade A = multiple large human RCTs. Grade F = no human evidence. How grades work. Full glossary →
Question 2
Is this bottle good?
The specific product: dose, price, transparency, and what buyers report.
Dose vs research
100% of trial dose
Meets or exceeds the published effective dose
Cost at trial dose
$3.96/day at trial dose
What one effective daily dose actually costs
Transparency
5.5/10 · No public lab certificate
Independent batch testing confirmed
Consumer signals
No consumer signals collected yet
Operational signal only, never used as clinical evidence
Question 3
What's the catch?
Safety flags, transparency gaps, dosing concerns, and recurring buyer complaints.
May potentiate thyroid hormone replacement (levothyroxine), raising risk of hyperthyroid symptoms; caution advised with sedatives, immunosuppressants, and blood sugar/blood pressure medications due to additive effects. Avoid in patients with cirrhosis or advanced chronic liver disease.
Dose or interaction risk detected. See ingredient page for details.
No public lab certificate
Certificate of Analysis not published
Without a public lab certificate, batch purity and potency cannot be independently verified.
Buyer complaints
Amazon: Price at $99 ($79 subscription) for 30 servings ($2.64-3.30 per serving) is considered expensive for a sleep supplement.; Reddit: Price is the main complaint at $2.64-3.30 per serving. Some users note the calming herbs blend is not individually dosed, making it hard to evaluate. Several users say they would prefer to buy individual ingredients separately.
Recurring themes from consumer review platforms.
Plain English
What’s inside
The main ingredients of this product, in plain language.
Magnesium250 mgEvidence A
One of the most common deficiencies; corrects sleep, muscle cramps, and blood pressure.
Hard numbers and independently checked status. Expand each block for its source.
The numbers
Price
$99
per bottle · 30 servings
Dose vs. research
of trial dose 100%
of published effective dose
$ / day at studied dose
$3.96
what one effective daily dose costs
$ / g active
$0.87
per gram of active substance
Independently checked
Data verification
COA status
Not public
Evidence grade
ABBBBBAA
Per-ingredient breakdown
AMagnesium
BGlycine
BMyo-Inositol
BAshwagandha
BL-Theanine
BSaffron
AZinc
AVitamin B6 (P-5-P)
All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Evidence grades are reviewed when new human RCTs are published. Read how we verify.
Active form of B6; toxicity concerns at high doses of pyridoxine.
5 mg25% of trial dose
20 mg
3.6/5
High confidence
8,860 reviews across 5 platforms (6 sources)
Source diversity: 100%
AmazonRedditRetailerTrustpilotYouTube
PraiseNot yet widely available on Amazon. Product launched August 2025 and is primarilUsers appreciate the melatonin-free approach and the inclusion of Magtein (magne
ComplaintsPrice at $99 ($79 subscription) for 30 servings ($2.64-3.30 per serving) is consPrice is the main complaint at $2.64-3.30 per serving. Some users note the calmi
Not yet widely available on Amazon. Product launched August 2025 and is primarily sold via drinkag1.com.
Complaints
Price at $99 ($79 subscription) for 30 servings ($2.64-3.30 per serving) is considered expensive for a sleep supplement.
Themes
Melatonin-free formula is a key differentiator. Uses Magtein magnesium L-threonate, which is a premium and clinically tested form. Includes saffron at 28mg, supported by clinical trials for sleep quality.
AGZ is a new product (launched August 2025). Limited Amazon presence. Data compiled from drinkag1.com product page and third-party reviews. Verified 2026-08-07.
Users appreciate the melatonin-free approach and the inclusion of Magtein (magnesium L-threonate). Saffron and L-theanine combination receives positive mentions for sleep quality.
Complaints
Price is the main complaint at $2.64-3.30 per serving. Some users note the calming herbs blend is not individually dosed, making it hard to evaluate. Several users say they would prefer to buy individual ingredients separately.
Themes
Compared favorably to Magnesium Glycinate alone, but at a much higher price. Some users compare it to Native Hydrate or other sleep supplements.
Compiled from Reddit discussions about AGZ located during research; not independently re-verified against live pages at build time.
Brand-level: AG1 has 3.6/5 on Trustpilot across 8732 reviews. Praise centers on product quality and NSF certification. Some users report improved sleep quality with AGZ specifically.
Complaints
Brand-level complaints focus on subscription model, price, and marketing intensity. Some users report it did not improve their sleep.
Trustpilot rating is brand-level (AG1/ Athletic Greens), not specific to AGZ product. Verified 2026-08-07 at https://www.trustpilot.com/review/drinkag1.com.
Reviewer highlighted Magtein, saffron, ashwagandha, L-theanine, and valerian as well-researched ingredients. Described it as a balanced formula without melatonin.
Complaints
Price was noted as a concern relative to buying individual ingredients.
YouTube review located during research. Not independently re-verified at build time.
MagnesiumMagnesium oxide has ~4% absorption and mostly acts as a laxative. Always check the salt form, not just 'magnesium'.
GlycineNone major. Very sweet in powder form, mix in water or coffee.
Myo-InositolGenerally very safe. May cause mild GI effects at high doses. Quality varies little between brands as it is a simple molecule.
AshwagandhaNot for pregnancy, hyperthyroidism, or with sedatives. Effects on TSH can complicate thyroid conditions.
L-TheanineVery safe. Suntheanine® is the branded form with the most published data.
SaffronNot for pregnancy. Interacts with anticoagulants at high doses.
ZincChronic >50 mg/day causes copper deficiency.
Vitamin B6 (P-5-P)Don't chronically exceed 50 mg/day of pyridoxine.
Editorial notes
Melatonin-free sleep formula. NSF Certified for Sport, tested for heavy metals. Uses Magtein magnesium L-threonate. Includes a calming herbs blend (valerian, chamomile, lemon balm, passionflower, holy basil, tart cherry) not individually dosed. Subscription price $79/mo.
If you are the manufacturer or brand owner of AGZ: Nightly Sleep Support and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.
We review every request, verify it against primary sources, and publish any accepted change with a dated note. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.
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