The best third-party tested protein powders, ranked

Of the 99 third-party tested protein powders we have checked against their labels, the highest-scoring are BulkSupplements Casein Protein Powder (100/100), Applied Nutrition Clear Whey Protein (100/100) and AGN Roots Grass-Fed Whey (100/100).

Every powder here carries a certification such as NSF Certified for Sport or Informed Choice, which we confirmed in the certifier’s own directory where possible. We rank by the TBPP Quality Score: protein density, third-party testing, label transparency and sugar, scored against our published standard. Last checked 2026-10-14.

Our picks

Highest score

BulkSupplements

Casein Protein Powder

Casein · 30 g scoop

NSF Certified for SportNo sweeteners

Protein

25g

Sugar

Our score

100/100

$0.64 / servingChecked 2026-10-14

100/100 on our standard.

Best value

Naked Nutrition

Naked Casein Micellar Casein Protein Powder

Casein · 30 g scoop

NSF Contents CertifiedNo sweeteners

Protein

26g

Sugar

Our score

90/100

$0.39 / servingChecked 2026-10-13

$0.38 per 25 g of protein, the lowest in the top half.

Most protein per scoop

SAVAS

Pro WPI Clear

Whey Isolate · 21 g scoop

Informed ChoiceInformed ProteinNo sweeteners

Protein

19.4g

Sugar

—

Our score

79/100

Price not verifiedChecked 2026-10-14

92% protein by weight.

Full ranking

Per serving, from the label. A dash means we couldn't verify it.

Best third-party tested protein powders, ranked by score
#	Powder	Score	Protein	Sugar	Per 25 g protein	Third-party tested
1	BulkSupplements Casein Protein Powder	100	25 g	0 g	$0.64	NSF Certified for Sport
2	Applied Nutrition Clear Whey Protein	100	21.27 g	0.24 g	—	Informed Sport
3	AGN Roots Grass-Fed Whey	100	25 g	0 g	$0.66	Informed Sport, Informed Protein
4	Applied Nutrition ISO-XP Whey Protein Isolate	100	22.4 g	0.2 g	—	Informed Sport
5	RAW Nutrition Isolate Protein (Grass-Fed Whey Isolate)	100	25 g	0 g	$3.00	Informed Sport
6	BulkSupplements Whey Protein Isolate 90% Powder	100	25 g	0 g	$0.70	NSF Certified for Sport
7	Klean Athlete Klean Isolate	99	20 g	1 g	—	NSF Certified for Sport
8	1st Phorm Phormula-1	95	23 g	0 g	$2.54	NSF Certified for Sport, Informed Choice
9	Wild Society Nutrition Clear Whey Isolate Protein with Electrolytes	92	20 g	0 g	$3.12	Informed Sport
10	Wild Society Nutrition Grass-Fed Whey Protein	92	25 g	2 g	$2.33	Informed Sport
11	Ascent Native Whey Protein Powder (formerly Native Fuel Whey)	92	25 g	1 g	$0.93	Informed Sport
12	NOW Foods NOW Sports Pea Protein (Pure Unflavored)	92	24 g	0 g	—	Informed Sport
13	Kaged Whey Protein Isolate	92	25 g	1 g	$2.07	Informed Sport
14	Klean Athlete Klean Casein	91	24 g	1 g	—	NSF Certified for Sport
15	Form Nutrition Performance Protein	91	30 g	0.1 g	—	Informed Sport
16	Transparent Labs 100% Grass-Fed Whey Protein Isolate	90	28 g	1 g	$1.93	Informed Choice, Informed Protein
17	Perfect Sports Diesel New Zealand Whey Isolate	90	27 g	0 g	—	Informed Choice
18	Muscle Feast Grass-Fed Whey Protein Isolate	90	25 g	0 g	$0.99	Labdoor tested
19	Naked Nutrition Naked Casein Micellar Casein Protein Powder	90	26 g	0 g	$0.38	NSF Contents Certified
20	Naked Nutrition Naked Pea Protein Powder	90	27 g	2 g	$0.71	Informed Choice, NSF Contents Certified
21	Naked Nutrition Naked Whey Grass-Fed Whey Protein Powder	90	25 g	2 g	$1.84	Informed Choice, NSF Contents Certified
22	Musashi Whey Protein Isolate (WPI)	90	25.3 g	0.4 g	—	Informed Sport
23	Myprotein Impact Whey Protein Elite	89	21 g	1 g	—	Informed Sport, Informed Protein
24	BioSteel Whey Protein Isolate	89	28 g	—	—	NSF Certified for Sport
25	1st Phorm Level-1	88	23 g	2 g	$2.28	NSF Certified for Sport, Informed Choice
26	1st Phorm Phormula-1 Clear	88	22 g	0 g	$3.16	NSF Certified for Sport
27	Sascha Fitness Hydrolyzed Whey Protein Isolate	87	25 g	0 g	$2.17	NSF Certified for Sport
28	Myprotein Clear Whey Isolate	86	20 g	0 g	$2.25	Informed Choice
29	Myprotein Impact Whey Isolate	86	25 g	0 g	—	Informed Choice, Informed Protein
30	Believe Supplements Isolate Protein	86	27 g	0 g	—	Informed Protein
31	Gnarly Nutrition Grass-Fed Whey Protein	84	25 g	2 g	$3.15	NSF Certified for Sport, NSF Contents Certified
32	Ascent Micellar Casein	84	25 g	1 g	$1.80	Informed Sport
33	Vega Protein + Recovery (formerly Sport Premium Protein)	84	30 g	1 g	$2.85	NSF Certified for Sport
34	Just Ingredients Protein Powder	84	22 g	1 g	$2.46	NSF Certified for Sport
35	Momentous 100% Plant Protein (formerly Essential Plant-Based Protein)	83	20 g	2 g	$1.70	NSF Certified for Sport
36	INC 100% Dynamic Whey	82	26.2 g	2 g	—	Informed Sport
37	Faction Labs 100% Whey Protein	82	25.23 g	1.3 g	—	Informed Sport
38	Musashi 100% Whey Protein Powder	82	25.3 g	2 g	—	Informed Sport
39	Levels Grass-Fed Whey Protein	82	24 g	2 g	$1.26	Clean Label Project
40	Transparent Labs Organic Vegan Plant-Based Protein	82	24 g	2 g	$1.74	Informed Choice
41	Musashi Plant Protein Powder	82	22.8 g	0.2 g	—	Informed Sport
42	GNC Pro Performance Pro Performance 100% Casein	82	25 g	0 g	$2.40	Informed Choice
43	Ora Organic So Lean & So Clean	82	23 g	0 g	$3.26	Informed Sport
44	Thorne Whey Protein Isolate	82	21 g	2 g	$2.58	NSF Certified for Sport
45	Legion Athletics Casein+ Micellar Casein Protein	81	21 g	1 g	$3.33	Labdoor tested
46	Bare Performance Nutrition Grass-Fed Whey Protein Isolate	81	25 g	—	$2.60	NSF Certified for Sport
47	Momentous Grass-Fed Whey Protein Isolate (formerly Essential Grass-Fed Whey)	79	20 g	—	$2.00	NSF Certified for Sport
48	SAVAS Pro WPI Clear	79	19.4 g	—	—	Informed Choice, Informed Protein
49	GNC AMP AMP Plant Isolate Protein	78	25 g	0 g	$1.79	Informed Choice
50	GNC AMP AMP Sustained Protein Blend	78	25 g	1 g	$1.92	Informed Choice, Informed Protein
51	Optimum Nutrition Gold Standard 100% Whey	78	24 g	1 g	$0.37	Informed Choice
52	Isopure Low Carb 100% Whey Protein Isolate	78	25 g	0 g	$1.00	Informed Choice
53	Puori PW1 Grass-Fed Whey Protein	78	21 g	3 g	$3.13	Clean Label Project
54	Rule 1 R1 Protein Whey Isolate	78	25 g	0 g	—	Informed Choice
55	Rival Nutrition Rival Whey	78	24 g	1 g	$2.23	Informed Choice
56	Applied Nutrition Critical Whey	77	24 g	2.3 g	—	Informed Sport
57	Dymatize Elite Casein	74	25 g	0 g	—	Informed Choice
58	Optimum Nutrition Gold Standard 100% Plant	74	24 g	0 g	$1.48	Informed Choice
59	Garden of Life Raw Organic Protein	74	22 g	0 g	$2.03	NSF Contents Certified
60	Thorne Plant Protein	73	21 g	—	$2.92	NSF Certified for Sport
61	Biogen Iso Whey Premium	72	20.9 g	1.9 g	—	Informed Choice
62	Dymatize Elite 100% Whey	70	25 g	2 g	—	Informed Choice
63	USN Isozero Whey Protein	70	20 g	0 g	—	Informed Choice
64	Garden of Life SPORT Organic Plant-Based Protein	69	30 g	2 g	$2.62	NSF Certified for Sport
65	GNC AMP AMP Wheybolic Ripped	68	50 g	1 g	$1.35	Informed Choice, Informed Protein
66	Garden of Life Sport Certified Grass Fed Whey Protein	67	24 g	0 g	$2.19	NSF Certified for Sport
67	RAW Nutrition BUM Itholate Protein	66	25 g	3 g	$3.00	Informed Protein
68	GNC Pro Performance Pro Performance Weight Gainer	65	50 g	—	$3.50	Informed Choice, Informed Sport
69	Ritual Essential Protein Daily Shake	64	20 g	0 g	$2.93	Clean Label Project, NSF Contents Certified
70	Garden of Life Raw Organic Fit Protein Powder	64	28 g	1 g	$3.71	Informed Choice
71	BSc Body Science Whey Protein	64	30 g	7.6 g	—	HASTA
72	Grenade Grenade OREO Protein Powder	62	21 g	4.4 g	—	Informed Sport
73	Vega Vega Performance Protein + Creatine	62	30 g	4 g	$2.08	Informed Choice
74	SAVAS Soy Protein 100	61	20 g	—	—	Informed Protein
75	SAVAS Whey Protein 100	61	19.5 g	—	—	Informed Choice, Informed Protein
76	GNC AMP AMP Wheybolic Alpha	60	50 g	2 g	$1.35	Informed Choice, Informed Protein
77	Muscle Milk Genuine Protein Powder	59	32 g	2 g	—	NSF Certified for Sport
78	Sports Research Whey Protein Isolate	59	25 g	—	$2.00	Informed Sport
79	USN BlueLab 100% Whey Protein	58	23.6 g	—	—	Informed Choice
80	Musashi Bulk Protein Powder	58	26 g	14.5 g	—	Informed Sport
81	MuscleMeds Carnivor Beef Protein Isolate	58	23 g	0 g	$1.54	Informed Choice
82	Transparent Labs Mass Gainer	58	53 g	12 g	$2.52	Informed Choice
83	Mutant Mutant Whey	58	22 g	4 g	$1.40	Informed Choice
84	Naked Nutrition Naked Mass	58	50 g	21 g	$3.64	NSF Contents Certified
85	NOW Foods NOW Sports Whey Protein Isolate	57	24 g	—	—	Informed Sport
86	Macro Mike Premium Almond Protein	55	23.3 g	—	—	HASTA Certified
87	Rival Nutrition Clean Gainer	54	30 g	9 g	$2.78	Informed Choice
88	Myprotein Impact Whey Protein	54	—	1 g	—	Informed Choice, Informed Protein
89	Rule 1 Mass Gainer	54	40 g	14 g	$3.51	Informed Choice, Informed Protein
90	Dymatize Super Mass Gainer	54	52 g	21 g	—	Informed Choice
91	PhD Nutrition Diet Whey	53	20 g	0.9 g	—	Informed Protein
92	DNS Protein Whey 100	53	24.2 g	—	—	Informed Choice
93	GNC AMP AMP Pure Isolate	52	25 g	0 g	$1.12	Informed Choice
94	DNS Whey Protein SP (Super Premium)	51	26.5 g	—	—	Informed Choice
95	Weider (Morinaga) Muscle Fit Protein	50	23.3 g	—	—	Informed Choice
96	GNC Pro Performance Pro Performance Bulk 1340	48	50 g	15 g	—	Informed Choice
97	GNC AMP AMP Mass XXX with MyoTor	44	50 g	8 g	$3.85	Informed Choice
98	GNC AMP AMP Wheybolic (Original, 2026 formula)	39	50 g	2 g	—	Informed Choice, Informed Protein
99	MHP Up Your Mass XXXL 1350	34	50 g	11 g	$2.93	Informed Choice