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Supplement analysis

Green powder teardowns, scored from the label up.

NutriScore reads supplement labels, public testing disclosures, prices, and formulation claims so buyers can compare green drinks without starting from a ranked product feed.

For research and educational purposes only. Not medical advice.
Label transparencyDose disclosureThird-party testingSafety disclosuresAdditives and sweeteners

New easy read

Score guide

How we score a greens powder 0-100

A plain-English guide to NutriScore's buyer score: label transparency, dose clarity, testing posture, claim discipline, additives, and price context.

Reviewed Jun 3, 2026

Editorial library

Latest supplement articles

See all articles

New easy read

Label guide

Sucralose, Red 40, and gums: what additives in your powder do

A practical guide to sweeteners, colors, gums, flavors, and what additive lists can tell you about a powder label.

Focus: Sweeteners, colors, gums, label fit

New easy read

Ingredient guide

Electrolyte mixes decoded: what the sodium is for

A light guide to sodium, potassium, magnesium, hydration claims, and how to read electrolyte packets without overbuying the hype.

Focus: Sodium, potassium, hydration labels

New protein guide

Label math

Whey isolate vs concentrate: what the tub is actually telling you

A plain-English read of whey isolate, whey concentrate, protein grams, calories, allergens, and when the upgrade is worth caring about.

Focus: Whey type, protein density, label math

New protein guide

Dose guide

How much protein powder do you actually need? The scoop math before you buy

A simple way to calculate daily protein targets, food-first intake, scoop gaps, and when an extra serving is just expensive powder.

Focus: Daily target, food intake, scoop gap

New protein guide

Source guide

Plant protein vs whey: what "complete protein" really means

A practical guide to complete protein, essential amino acids, whey, soy, pea and rice blends, allergens, and label clarity.

Focus: Complete protein, amino acids, buyer fit

New testing guide

Testing guide

NSF Certified for Sport vs Informed Sport vs nothing: what the badges mean

A practical guide to sport supplement certification badges, vague third-party testing claims, and what a missing badge does or does not tell you.

Focus: Certification, testing scope, buyer risk

New safety guide

Safety guide

Why concentrated greens powders can carry more heavy metals than vegetables

The water-removal math behind concentrated plant powders, heavy-metal testing, and why a buyer-useful COA needs serving-size numbers.

Focus: Drying math, heavy metals, COAs

New ingredient guide

Dose guide

Creatine monohydrate vs gummies vs fancy forms: does it matter?

A label-first read of creatine forms, gummies, premium claims, grams per serving, and why monohydrate remains the default to beat.

Focus: Creatine forms, dose clarity, testing

New easy read

Dose guide

Clinically significant dose vs whatever is on the label

A plain-English guide to matching supplement dose claims against the label, the evidence, and the math hiding behind clinically studied language.

Focus: Dose claims, label amounts, evidence fit

New easy read

Label guide

What is fairy dusting? The tiny-dose label trick in plain English

A lighter NutriScore guide to tiny-dose label theater, proprietary blends, and how to tell when a buzzy ingredient is doing more marketing than work.

Focus: Tiny doses, hidden amounts, label claims

New easy read

Label guide

Proprietary blend is a red flag: how to read past it

A plain-English guide to what proprietary blends tell you, what they hide, and how to read the blend without assuming the worst.

Focus: Blend labels, dose clarity, red flags

Latest safety guide

Lead testing

How much lead is in your greens powder? What the testing actually shows

A buyer-focused read of public lead testing, Prop 65, FDA reference levels, ConsumerLab notices, and what a useful COA should show.

Focus: Lead, COAs, Prop 65

Latest teardown

74/100

Organifi Green Juice teardown: good organic signal, messy weight-loss pitch

A score-driven read of Organifi's organic claims, current price, ashwagandha weight-loss pitch, public COA, and Prop 65 lead warning.

Focus: Organic claims, price, COA, Prop 65

Brand teardown

74/100

Why some Reddit users say they canceled their AG1 subscription

A skeptical look at AG1 cancellation complaints: price, dose opacity, mixed bloating reports, podcast-ad fatigue, and when keeping it still makes sense.

Focus: Price, dose opacity, cancellation complaints

Brand comparison

76/100

AG1 vs Green Vibrance vs Opti Greens 50: which one actually earns its price

A score-and-price comparison of AG1, Green Vibrance, and Opti Greens 50 focused on label transparency, certification, and value.

Focus: Score, price, transparency

Comparison guide

71/100

AG1 alternatives that cost a third as much (and how they score)

A price-and-score breakdown of cheaper AG1 swaps, separating true one-third-cost picks from better-scoring but not-that-cheap alternatives.

Focus: Budget swaps, score tradeoffs

Brand teardown

74/100

Is AG1 worth $99 a month? An honest score after reading the label

A label-first score of AG1's testing posture, current pricing, hidden individual doses, and whether the convenience earns the premium.

Focus: Testing, hidden doses, price

Ranking context

Score tables for quick comparison.

Use the full rankings when you want a compact product-by-product view. The article pages explain the label tradeoffs behind price, testing, and transparency.

Open the full rankingsBrowse scorecards

What the articles check

Claims need evidence.

Dose clarity

Articles call out proprietary blends, missing ingredient amounts, and claims that depend on undisclosed dosing.

Testing posture

Public COAs, third-party certifications, contaminant disclosures, and safety warnings are treated as ranking context.

Price pressure

Scores are read against the monthly cost, serving size, and what cheaper alternatives actually disclose.

Conservative wording

Coverage avoids disease-treatment claims and keeps health-adjacent analysis educational.