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Rule 1 Proteins Casein Protein 8.9/ 10 View on Amazon
Rule 1 Casein Protein

Home / Protein Powder / Casein Protein

Verified Rule 1 Proteins · #5 of 79 in Protein Powder

Casein Protein

Photo and title link to Amazon · paid link, to the listing our price was read from · the rating is unaffected

Value 40% weight 8.91/10
Formula 35% weight 8.33/10
Consensus 25% weight 9.60/10
Cost in category per g protein
$0.054 Naked Nutrition Pea Protein Powder — $0.028BulkSupplements Soy Protein Isolate Powder — $0.034BulkSupplements Casein Protein Powder — $0.047Naked Nutrition Micellar Casein Protein Powder — $0.056Nutricost Pea Protein Powder — $0.047Quest Nutrition Vanilla Milkshake Protein Powder — $0.059Animal 100 Whey Protein — $0.050Nutricost Casein Powder Chocolate — $0.051BulkSupplements Pea Protein Powder — $0.056Ascent Protein Chocolate Protein Powder — $0.062BulkSupplements Whey Protein Concentrate 80 Percent Powder Clean — $0.062BulkSupplements Whey Protein Powder Isolate 90 Percent Clean — $0.067MusclePharm Combat 100 Whey — $0.056Optimum Nutrition Gold Standard 100 Whey Double Rich Chocolate 2lb — $0.064Optimum Nutrition Gold Standard 100 Whey Vanilla Ice Cream 5lb — $0.064PEScience Select Protein — $0.068NutraBio Classic Whey — $0.063MusclePharm Combat Protein Powder — $0.054EVL Nutrition Stacked Protein — $0.052Rule 1 Proteins Whey Protein — $0.064Ascent Protein Chocolate Micellar Casein — $0.071RYSE Loaded Protein — $0.067Rule 1 Proteins R1 Protein Whey Isolate — $0.073Naked Nutrition Grass Fed Whey Protein Powder — $0.074BulkSupplements Grass-Fed Whey Protein Concentrate Powder — $0.071Transparent Labs Whey Protein Isolate — $0.076Quest Nutrition Cinnamon Crunch Protein Powder — $0.069PEScience Select Protein Vegan Series — $0.074Optimum Nutrition Gold Standard 100 Casein Chocolate Supreme 4lb — $0.077Nutricost Whey Protein Isolate Powder — $0.077Transparent Labs Casein Protein — $0.080Kaged Whey Protein Isolate — $0.082Nutricost Whey Protein Concentrate Powder — $0.077Legion Athletics Casein Protein Powder — $0.083Gorilla Whey — $0.082NutraBio Whey Protein Isolate — $0.088Xwerks Grow — $0.092Legion Athletics Whey Protein Powder — $0.091Kaged Protein Isolate Elite — $0.086RYSE Clear Protein — $0.091Optimum Nutrition Gold Standard 100 Plant Based Creamy Vanilla — $0.077Optimum Nutrition Gold Standard 100 Isolate Chocolate Bliss 3lb — $0.094EVL Nutrition 100 Whey — $0.081Legion Athletics Whey Protein Concentrate — $0.083BSN Syntha 6 Edge Protein — $0.0691st Phorm Phormula 1 Clear — $0.1261st Phorm Level 1 — $0.091Legion Athletics Plant Protein Powder — $0.090BSN Syntha 6 Protein — $0.065MusclePharm Pro Protein — $0.075Optimum Nutrition Platinum Hydrowhey Turbo Chocolate 1.8lb — $0.115Kaged Re Kaged — $0.098Ascent Protein Coffee with Protein — $0.100Ghost Whey Cereal Milk — $0.084Orgain Organic Protein Plant Based Protein Powder — $0.090Orgain 30g Chocolate Plant Based Protein Powder — $0.094Ghost Clear Whey Blue Raspberry — $0.111Orgain Grass Fed Whey Protein Powder — $0.095Ascent Protein Orange Mango Clear Whey Protein Isolate — $0.100Optimum Nutrition Gold Standard Pro Gainer Double Chocolate 5.09lb — $0.099Animal Meal Wholefood Protein Supplement — $0.099Jocko Fuel Clear Protein Isolate — $0.133Transparent Labs Mass Gainer — $0.101Optimum Nutrition Serious Mass Chocolate 6lb — $0.186 Category median $0.077 Casein Protein — $0.054 median
$0.028 Cheaper than 89% of 65 scored protein powders $0.186

Consensus source: 4.8/5 across 78 buyer reviews on the brand's storefront (shown there by its Stamped review widget) · source ↗ · captured 2026-10-09. Brand-site reviews skew positive; see how we rate.

8.88/ 10
Composite score Exceptional

Composite score · 100% of category weighting covered

Nutrition

35 g per serving · servings per container not on record
Nutrition (per serving)Amount
Protein25 g
Calories120
Total Carbs3 g
Sugarnot enough data
Sugar Alcoholsnot enough data
Fat1 g
Fiber1 g
Sodium240 mg

Dose audit

Dose audit

None of this label's declared ingredients matched a compound in the clinical dose reference, so no audit could be computed.

Price

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Chocolate Fudge / 4 LB · SKU RU0441
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Vanilla Creme / 4 LB · SKU RU0442
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$39.99
Strawberries & Creme / 2 LB · SKU RU0461
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$69.99
Strawberries & Creme / 4 LB · SKU RU0462
Price from ruleoneproteins.com · captured 2026-10-09
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$39.99
Cookies and Creme / 2 LB · SKU RU0498
Price from ruleoneproteins.com · captured 2026-10-09
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$69.99
Cookies and Creme / 4 LB · SKU RU0499
Price from ruleoneproteins.com · captured 2026-10-09
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$39.99
Chocolate Peanut Butter / 2 LB · SKU RU0656
Price from ruleoneproteins.com · captured 2026-10-09
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On Amazon
Vanilla Crème, 57 Servings · current price shown on Amazon
View

Commission links are marked and may earn us a commission. They do not affect the rating.

Provenance

How it was read
Read from the label image by two independent readers who agreed on every published value
Captured
2026-08-22
Verified
2026-08-22
Panel source
source ↗

Compare

Full protein powders ranking →
RULE 1 PROTEINS Whey Protein Protein Powder 7.8Composite / 10 Full record → RULE 1 PROTEINS R1 Protein Whey Isolate Protein Powder 7.7Composite / 10 Full record → NAKED NUTRITION Pea Protein Powder Protein Powder 9.6Composite / 10 Full record → BULKSUPPLEMENTS Soy Protein Isolate Powder Protein Powder 9.5Composite / 10 Full record →

Ranked in Best Casein Protein Powders 9 Best Rule 1 Proteins Protein Powders 3 Best Budget Protein Powders 33