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Best Protein Powder

Protein powders, ranked

471 powders scored against our published standard. Every number comes from the manufacturer's label; a dash means we couldn't verify it. Last checked 2026-11-04. Use this comparison database to filter by what matters to you, then sort by score, price or protein per scoop.

Highest score
BulkSupplements

Casein Protein Powder

Casein · 30 g scoop
NSF Certified for SportNo sweeteners
Protein
25g
Sugar
0g
Our score
100/100
$1.24 / servingChecked 2026-10-14
Klean Athlete

Klean Casein

Casein · 30.7 g scoop
NSF Certified for Sport
Protein
24g
Sugar
1g
Our score
91/100
Price not verifiedChecked 2026-10-13
Believe Supplements

Isolate Protein

Milk Protein · 32.5 g scoop
Informed Protein
Protein
27g
Sugar
0g
Our score
86/100
Price not verifiedChecked 2026-10-14
Ascent

Micellar Casein

Casein · 36 g scoop
Informed Sport
Protein
25g
Sugar
1g
Our score
84/100
$1.80 / servingChecked 2026-10-14
GNC Pro Performance

Pro Performance 100% Casein

Casein · 33.8 g scoop
Informed Choice
Protein
25g
Sugar
0g
Our score
82/100
$2.40 / servingChecked 2026-10-14
GNC AMP

AMP Sustained Protein Blend

Milk Protein · 33.5 g scoop
Informed ChoiceInformed Protein
Protein
25g
Sugar
1g
Our score
78/100
$2.31 / servingChecked 2026-10-14
Dymatize

Elite Casein

Casein · 36 g scoop
Informed Choice
Protein
25g
Sugar
0g
Our score
74/100
Price not verifiedChecked 2026-10-13
Muscle Milk

Genuine Protein Powder

Milk Protein · 70 g scoop
NSF Certified for Sport
Protein
32g
Sugar
2g
Our score
66/100
Price not verifiedChecked 2026-11-04
GNC Pro Performance

Pro Performance Weight Gainer

Mass Gainer · 185.4 g scoop
Informed ChoiceInformed Sport
Protein
50g
Sugar
—
Our score
65/100
$8.00 / servingChecked 2026-10-13
Musashi

Bulk Protein Powder

Mass Gainer · 60 g scoop
Informed Sport14.5 g sugar
Protein
26g
Sugar
14.5g
Our score
58/100
Price not verifiedChecked 2026-10-14
Transparent Labs

Mass Gainer

Mass Gainer · 199 g scoop
Informed Choice12 g sugar
Protein
53g
Sugar
12g
Our score
58/100
$5.33 / servingChecked 2026-10-13
Naked Nutrition

Naked Mass

Mass Gainer · 321 g scoop
NSF Contents CertifiedNo sweeteners21 g sugar
Protein
50g
Sugar
21g
Our score
58/100
$7.27 / servingChecked 2026-10-14
Rival Nutrition

Clean Gainer

Mass Gainer · 149 g scoop
Informed Choice9 g sugar
Protein
30g
Sugar
9g
Our score
54/100
$3.33 / servingChecked 2026-10-14
Rule 1

Mass Gainer

Mass Gainer · 325 g scoop
Informed ChoiceInformed Protein14 g sugar
Protein
40g
Sugar
14g
Our score
54/100
$5.62 / servingChecked 2026-10-14
Dymatize

Super Mass Gainer

Mass Gainer · 335 g scoop
Informed Choice21 g sugar
Protein
52g
Sugar
21g
Our score
54/100
Price not verifiedChecked 2026-10-13
GNC Pro Performance

Pro Performance Bulk 1340

Mass Gainer · 361 g scoop
Informed Choice15 g sugar
Protein
50g
Sugar
15g
Our score
48/100
Price not verifiedChecked 2026-10-13