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Head to head · Protein Powder

Momentous Grass-Fed Whey Protein Isolate vs Transparent Labs 100% Grass-Fed Whey Protein Isolate

Transparent Labs scores higher overall (8.8 vs 7.9 out of 10) and leads on four of the five factors we score.

Updated September 2026 from our full reviews · How we score

Front of Momentous Whey Protein Isolate Vanilla 25-serving jar
MomentousGrass-Fed Whey Protein Isolate
7.9
Good

A premium grass-fed whey isolate with 20 g of protein per 90-calorie scoop, NSF Certified for Sport status and a short, gum-free ingredient list.

Check price on AmazonBuy from the brand$59.99

We may earn a commission when you buy through these links — it never affects our scores. How we make money

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Higher score
Front of Transparent Labs Grass-Fed 100% Whey Protein Isolate Milk Chocolate 30-serving tub
Transparent Labs100% Grass-Fed Whey Protein Isolate
8.8
Excellent

A grass-fed whey isolate with 28 g of protein per scoop, stevia instead of artificial sweeteners, and NSF Certified for Sport status.

Check price on AmazonBuy from the brand$64.99

We may earn a commission when you buy through these links — it never affects our scores. How we make money

Read the full review

We may earn a commission when you buy through these links — it never affects our scores. How we make money

The short answer

Choose Momentous if…

  • Drug-tested and professional athletes
  • Minimalist ingredient lists without gums or artificial sweeteners
  • People with sensitive digestion

Choose Transparent Labs if…

  • Drug-tested athletes
  • Clean-label shoppers avoiding artificial sweeteners
  • People who want grass-fed sourcing
  • Lactose-sensitive lifters
  • You care most about efficacy, value, experience, transparency
  • You want the lower cost per serving ($2.17)

Side by side

Grass-Fed Whey Protein Isolate100% Grass-Fed Whey Protein Isolate
Our score7.9 / 108.8 / 10
Efficacy (30%)8.39.1
Quality & Purity (25%)9.59.4
Value (20%)6.27.4
Experience (15%)8.08.6
Transparency (10%)6.09.5
FormPowderPowder
Serving1 scoop (25 g, Vanilla)25 servings per container1 scoop (34.9 g)30 servings per container
Price per serving$2.40$2.17
Testing & certifications
NSF Certified for Sport
NSF Certified for SportInformed Choice
DietaryGluten-free, Non-GMOGluten-free
Key ingredients
  • Grass-fed whey protein isolate23.3 g (20 g protein)
  • ProHydrolase (protease enzyme blend)200 mg
  • Monk fruit extract and stevia
  • Grass-fed whey protein isolate28 g protein
  • Stevia extract165 mg
  • Salt240 mg
Flavors8 (Vanilla, Chocolate, Unflavored…)8 (Milk Chocolate, French Vanilla, Dark Chocolate…)
Creator video reviews55

Pros and cons

Grass-Fed Whey Protein Isolate

  • NSF Certified for Sport, with lot-level testing and published certificates of analysis
  • Grass-fed European whey isolate with no gums, fillers or artificial sweeteners
  • Only 90 calories per 20 g protein serving
  • Unflavored version contains just whey isolate and enzymes
  • About $2.40 per serving (roughly 12 cents per gram of protein) before subscription discounts
  • 20 g of protein per scoop is lower than most competitors
  • buyer reviews are split on taste, mixability and a recent reformulation
  • ProHydrolase is labeled as a proprietary enzyme blend, and its benefit is not well established

100% Grass-Fed Whey Protein Isolate

  • 28 g of protein per scoop from grass-fed whey isolate
  • Listed in NSF's Certified for Sport database and certified by Informed Choice (per the brand)
  • Every ingredient disclosed by weight, with batch test results published online
  • No artificial sweeteners, dyes or preservatives
  • buyers frequently describe it as easy on the stomach
  • About $2.17 per serving for the 30-serving tub, well above whey blends
  • Stevia can leave an aftertaste some people dislike
  • Made on equipment that also processes eggs, soy, wheat, shellfish, fish oil, tree nuts and peanut oil, and some flavors contain peanuts
  • Mostly sold through the brand site and Amazon, so in-store discounts are rare

Our verdicts

Grass-Fed Whey Protein Isolate

Momentous whey is a top pick for athletes who need certainty: NSF Certified for Sport status, lot-by-lot testing and a minimalist, gum-free formula built on grass-fed isolate. You pay heavily for that assurance and get only 20 g of protein per scoop, so value-focused lifters will find better deals elsewhere.

Full review

100% Grass-Fed Whey Protein Isolate

For shoppers who prioritize ingredient transparency and third-party verification, this is one of the strongest whey isolates available: 28 g of protein, a short stevia-sweetened ingredient list, NSF Certified for Sport status and public batch testing. The trade-off is price, at more than $2 per serving, and stevia's flavor will not suit everyone.

Full review

What creators say

Questions people ask

Is Momentous better than Transparent Labs?
In our scoring, Transparent Labs 100% Grass-Fed Whey Protein Isolate rates higher overall (8.8 vs 7.9 out of 10). Transparent Labs leads on efficacy, value, experience and transparency. Scores weigh efficacy, quality, value, experience and transparency.
Which is cheaper per serving, Momentous or Transparent Labs?
Transparent Labs costs about $2.17 per serving versus $2.40 for Momentous, based on the list prices shown in our reviews. Prices change often, so check the current price before buying.
Are Momentous and Transparent Labs third-party tested?
Momentous carries NSF Certified for Sport; Transparent Labs carries NSF Certified for Sport and Informed Choice. Sport-level certifications screen for banned substances, which matters for drug-tested athletes.
Who should choose Momentous over Transparent Labs?
Our reviews suggest Momentous is best for drug-tested and professional athletes, minimalist ingredient lists without gums or artificial sweeteners and people with sensitive digestion, while Transparent Labs is best for drug-tested athletes, clean-label shoppers avoiding artificial sweeteners and people who want grass-fed sourcing.

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