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Brand comparison

AG1 vs Green Vibrance vs Opti Greens 50: a comparison

The scores are close. The better question is which product gives you enough label clarity, testing posture, and value for the money.

Last reviewed: 2026-09-01Verdict: close scores, different tradeoffs

Key takeaways

Bottom line

The scores are close.

Green Vibrance, Opti Greens 50, and AG1 all sit in the same NutriScore tier. Green Vibrance scores 76/100, Opti Greens 50 scores 75/100, and AG1 scores 74/100. That means the buying decision should not be made from a podcast ad, a favorite gym brand, or a vague ingredients claim. NutriScore rankings

It should come down to three practical questions:

  • What do you pay per month?
  • How readable is the label?
  • Is there a testing or certification reason to pay more?

On that standard, Green Vibrance leads on label readability and listed price. Its current product page also carries a California warning for lead and reproductive harm, without a per-serving amount or current-lot result, so this article does not make an unconditional buy recommendation. Green Vibrance product page

Opti Greens 50 is close. At $59.99 on subscription for 30 servings, it is cheaper than AG1, and its label lists a 5 billion CFU probiotic blend. The product page claims 10 strains while the current label names nine, so the two first-party sources conflict. Its ingredient disclosure is weaker than Green Vibrance because the most important pieces are grouped into complexes and blends. Opti Greens 50 product page Opti Greens 50 Nutrition Facts

AG1 is the premium pick, not the value pick. Its sport certification is real, but Opti Greens 50 has a current listing too. AG1 does not have the best score, the best label transparency, or the best price. AG1 product page AG1 NSF Certified for Sport listing Optigreens 50 NSF Certified for Sport listing

The scorecard

ProductScoreSafetyEfficacyTransparencyCurrent price signal
Green Vibrance76/100787476$56 for 30 days; $99 for 60 days; $130 for 83 days Green Vibrance product page
Opti Greens 5075/100767574$69.99 one-time or $59.99 subscription for a 30-serving bag Opti Greens 50 product page
AG1 Next Gen74/100706585$69/month billed every 90 days; $79 every 30 days; $99 plus $9 shipping buy-once AG1 product page

Score source: NutriScore rankings. Price sources: Green Vibrance product page, Opti Greens 50 product page, and AG1 product page.

The full score range is two points. That narrow spread does not make any option perfect. NutriScore rankings

Safety context: the Green Vibrance product page carries a California warning for lead and reproductive harm, but it does not provide a per-serving amount or a current-lot result beside that warning. Green Vibrance product page

Green Vibrance: strongest label clarity, with a warning

Green Vibrance lists ingredient amounts individually, making its label easier to compare. Vibrant Health says Green Vibrance includes 25 billion probiotics from 12 strains per serving, 65-plus functional foods, 2.5 g of plant-based micronutrients, 14 antioxidants, and 6 cereal grass varieties. Green Vibrance product page

The Supplement Facts panel backs up the main transparency point. It gives individual ingredient amounts across the cereal grasses, plant-based micro-nutrition section, antioxidant section, immune support section, adaptogens, skeletal support, fiber, liver support, enzymes, and probiotic blend. It also gives a serving size of 11.2 g and about 30 servings per container for the 30-day format. Green Vibrance Supplement Facts

Most greens powders give you a long ingredient list and a few large blend weights. Green Vibrance discloses individual amounts for more ingredients. That does not prove every ingredient is clinically dosed, but it makes the formula easier to check.

The current official-page pricing works out to roughly $1.87 per day from the 30-day tub, $1.65 per day from the 60-day tub, and $1.57 per day from the 83-day pouch. Green Vibrance product page

The current product page also carries a California warning for lead and reproductive harm. Because the page gives no per-serving amount or current-lot result beside that warning, the product's label and price advantages do not support an unconditional buy call. Green Vibrance product page

Opti Greens 50: cheaper than AG1, but less transparent

Opti Greens 50 has a cleaner value case than AG1. The official 1st Phorm page currently lists the 30-serving bag at $69.99 as a one-time purchase or $59.99 on subscription. The page also says Opti Greens 50 includes digestive enzymes and probiotics, with each serving providing over 5 billion CFU. Opti Greens 50 product page

That makes Opti Greens 50 cheaper than AG1 on subscription. Opti Greens 50 product page

The product page claims 10 strains while the current label names nine, so the two first-party sources conflict. Opti Greens 50 product page Opti Greens 50 Nutrition Facts

The issue is disclosure. The label lists a 10 g serving, 30 calories, 5 g carbohydrate, 1 g fiber, 2 g protein, a Green Superfood Complex, a Glycemic Balance Blend, an Antioxidant Phytonutrient Complex, a Plant Enzyme Blend, and a Probiotic Blend. Opti Greens 50 Nutrition Facts

That gives useful structure, but not enough precision. The label tells you what is inside the Green Superfood Complex, but not the exact amount of each individual plant in that complex. Opti Greens 50 Nutrition Facts

Before treating Opti Greens 50 as a fit, read its warnings. 1st Phorm tells people with medical conditions, people taking prescription medications, and people who are pregnant or lactating to consult a health care provider, and says to keep the product out of children's reach. The current label says it is made in a facility that processes milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soybeans, and sesame. Opti Greens 50 product page Opti Greens 50 Nutrition Facts

Opti Greens 50 may fit a buyer who mainly cares about price, flavor options, and a greens-plus-probiotics-plus-enzymes formula, after accounting for any applicable manufacturer warning and the facility-allergen disclosure. It is not the pick if the main complaint is proprietary blend math. Opti Greens 50 product page Opti Greens 50 Nutrition Facts

AG1: premium price without an exclusive certification edge

NSF currently lists both AG1 Next Gen and Optigreens 50 as Certified for Sport products. Certification therefore does not separate the two products in this comparison. AG1 NSF Certified for Sport listing Optigreens 50 NSF Certified for Sport listing

NSF lists AG1 Next Gen as a Certified for Sport product in the United States. The listing identifies it as a powder, package size 390 g, serving size 1 scoop or 13 g, with 40 calories, 2 g protein, and 6 g carbohydrate. AG1 NSF Certified for Sport listing

AG1's own product page says the product is free from more than 280 banned substances and has achieved NSF Certified for Sport. The same page lists $69 per month billed every 90 days, $79 billed every 30 days, and a $99 buy-once pouch plus $9 shipping. AG1 product page

The label is also not as transparent as the price should demand. AG1 gives useful numbers for calories, macros, probiotics, vitamins, minerals, and broad formula buckets. The NSF-hosted label shows 7.5 g for the Active Superfood and Prebiotic Complex, 1.5 g for the Daily Phytonutrient Complex, and 10 billion viable cells of probiotics. It does not give every individual botanical, mushroom, fruit, or extract dose inside those broad complexes. AG1 Supplement Facts

AG1 is not the automatic pick for a drug-tested athlete because Opti Greens 50 has the same current certification signal at a lower price. Certification status and listed lots can change, so verify the exact product and current listing before buying. AG1 NSF Certified for Sport listing Optigreens 50 NSF Certified for Sport listing AG1 product page

Which one actually earns its price?

Best label clarity: Green Vibrance

Green Vibrance combines the highest current NutriScore in this comparison, a lower listed price than AG1, and the most readable label. Its product-page warning means those advantages are not a complete safety verdict. NutriScore rankings Green Vibrance Supplement Facts Green Vibrance product page

Opti Greens 50 remains a supplement rather than a vegetable replacement or disease treatment. Among these three products, it is the lower-price sport-certified option. Opti Greens 50 product page Optigreens 50 NSF Certified for Sport listing

Best cheaper AG1 alternative: Opti Greens 50

Opti Greens 50 is the practical AG1 alternative if the whole point is spending less. Its subscription price for a 30-serving bag is below AG1's monthly delivery price. Opti Greens 50 product page AG1 product page

Green Vibrance provides more individual dose detail. Opti Greens 50 costs less than AG1 but groups ingredients inside named complexes and blends. Green Vibrance Supplement Facts Opti Greens 50 Nutrition Facts Opti Greens 50 product page

Current sport-certified value: Opti Greens 50

Both AG1 and Opti Greens 50 have current NSF Certified for Sport listings, while Opti Greens 50 has the lower subscription price. Buyers who need certification should verify the exact current product and listed lots rather than treating either brand name as a permanent guarantee. AG1 NSF Certified for Sport listing Optigreens 50 NSF Certified for Sport listing Opti Greens 50 product page

Certification lowers one kind of product risk; it does not prove that the formula is effective or medically appropriate.

The final choice

There is no unconditional first-place buy call here. Green Vibrance leads on label clarity, but its current lead and reproductive-harm warning lacks the per-serving and current-lot context needed for a complete safety comparison. Green Vibrance product page

Green Vibrance still combines a lower listed price than AG1 with more useful label detail than Opti Greens 50. Treat that as a label-and-price result, not as proof that the product is the safest choice. Green Vibrance product page Green Vibrance Supplement Facts

Before choosing Opti Greens 50, I would resolve any applicable manufacturer warning with a health professional and account for the facility-allergen disclosure. Its lower price, probiotics, digestive enzymes, and blend opacity remain the tradeoff. Opti Greens 50 product page Opti Greens 50 Nutrition Facts

I would not pay AG1's premium for certification alone because Opti Greens 50 also has a current NSF listing. I would choose on price and label detail, then recheck the exact certification listing at purchase. AG1 product page AG1 NSF Certified for Sport listing Optigreens 50 NSF Certified for Sport listing

Sources

  1. NutriScore rankings
  2. AG1 product page: https://drinkag1.com/products/greens-powder-pouch?a=1
  3. AG1 NSF Certified for Sport listing: https://www.nsfsport.com/certified-products/listing-detail.php?id=1725966
  4. AG1 Supplement Facts: https://info.nsf.org/Certified/Common/cfs/C0368578/C0832046/AG1/AG1%20Next%20Gen/1725966/Label_01.PNG
  5. Green Vibrance product page: https://vibranthealth.com/products/green-vibrance
  6. Green Vibrance Supplement Facts: https://vibranthealth.com/cdn/shop/files/SF_25138_GV30_v22_80001_260212.jpg?v=1777418124&width=800
  7. Opti Greens 50 product page: https://1stphorm.com/products/opti-greens-50
  8. Opti Greens 50 Nutrition Facts: https://1stphorm.com/cdn/shop/files/opti-greens-50-mixed-berry-NFP-04_25.png?v=1745519579&width=400
  9. Optigreens 50 NSF Certified for Sport listing: https://www.nsfsport.com/certified-products/listing-detail.php?id=1639971

How this article was made

NutriScore has not commissioned independent clinical review of this article.

Read the editorial policy and scoring methodology. Sources favor primary canon, regulators, product labels, and peer-reviewed research; reputable secondary reporting is identified when used.

Corrections: send corrections or updated label/source evidence to support@nutriscore.fit or use the contact page.

Sources: 9 entries, all primary canon, last reviewed 2026-09-01.

For research and educational purposes only. Not medical advice.