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Category · 13 products

Amino acids & creatine

Creatine, taurine, glycine and other amino acids with direct human trial bases.

Category statistics and scoring

6.6

$0.13

Compare the top 3 → Filter the full index →

Ranked

Every Amino acids & creatine product we score

Same formula as the rest of the site. Position here has never been bought.

Reading guide

How to read this shelf

Single compounds sold at gram-level amounts: NAC, glycine, taurine, creatine. The catalog stores both the form and the per-serving amount, so powder and capsule versions can be compared directly on price per serving.

Check on every label

The compound form (creatine monohydrate, NAC, glycine) and the grams per scoop or per capsule.
Scoop size versus the catalog serving. Some labels define a serving as two scoops.
Flavoured versions add sweeteners and fillers under 'other ingredients'.

Catalog figures for this shelf (13)

Products: 13
Most common lead ingredients: NAC (4), Glycine (3), Taurine (3)
Forms: Capsule (7), Powder (5), Tablet (1)
Range of NAC per serving: 500 mg to 900 mg across 4 products
Price per serving: $0.08 to $2.33
Testing listed: 8 of 13 list third-party testing · 5 publish a CoA
Multi-ingredient products: 1 of 13 list three or more ingredients

Counts and ranges are catalog facts about the labels, not a ranking. The score, evidence and safety sections below are separate.

Top 3 for this shelf

The three best-evidenced options here, with the plain verdict and the catch first. The full ranking continues below.

Thorne HealthTech

Creatine Monohydrate

Amino acid

Active per serving: Creatine 5 gPowder · 90 servings
Price per serving: $0.49$44.00 · 90 servings
Testing: 3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 8.9/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$0.49

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with www.thorne.com

Verdict: This Thorne HealthTech Creatine Monohydrate scores 8.9, making it one of the highest-scoring products on the site. It delivers 5000mg of Creatine, inside the studied range of 3000–10000mg with grade A evidence (strong human trial data). Transparency is solid (score: 9.0) with third-party testing, though no public lab certificate.

The catch: No public lab certificate available for independent verification.

BulkSupplements

Glycine Powder

Amino acid

Active per serving: Glycine 3,000 mgPowder · 100 servings
Price per serving: $0.20$20.00 · 100 servings
Testing: 3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.6/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$0.20

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with www.bulksupplements.com

Verdict: This BulkSupplements Glycine Powder scores 7.6, making it a strong scorer. It delivers 3000mg of Glycine, inside the studied range of 1000–10000mg with grade B evidence (promising human data, not yet comprehensive). Transparency is a clear strength (score: 9.0), with third-party testing and a public lab certificate. At $0.20/day it's priced well for what you get.

Double Wood Supplements

Glycine Supplement

Amino acid

Active per serving: Glycine 1,000 mgCapsule · 120 servings
Price per serving: $0.17$19.95 · 120 servings
Testing: 3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.6/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$0.50

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with doublewoodsupplements.com

Verdict: This Double Wood Supplements Glycine Supplement scores 7.6, making it a strong scorer. It delivers 1000mg of Glycine, inside the studied range of 1000–10000mg with grade B evidence (promising human data, not yet comprehensive). Transparency is a clear strength (score: 9.0), with third-party testing and a public lab certificate.

The catch: Glycine (1000.0mg is 33% of the 3000mg trial dose) is significantly under-dosed.

Quick compare

Top 5 in Amino acids & creatine

Sorted by overall score. Same numbers you'll see on each product page.

#	Product	Score	Primary active	Dose vs RCT	Price/mo	Value rank	Dose+Evidence
#1	Creatine Monohydrate Thorne HealthTech	8.90/10	Creatine 5000mg	✅ 100%	$15/mo	Mid-range	10.0/10
#2	Glycine Powder BulkSupplements	7.60/10	Glycine 3000mg	✅ 100%	$6/mo	Top 8%	7.2/10
#3	Glycine Supplement Double Wood Supplements	7.60/10	Glycine 1000mg	✅ 100%	$5/mo	Mid-range	7.2/10
#4	N-Acetyl L-Cysteine (NAC) Powder BulkSupplements	7.00/10	NAC 600mg	✅ 100%	$4/mo	Top 1%	7.2/10
#5	Jarrow Formulas N-A-C Sustain, 600 mg Jarrow Formulas	6.90/10	NAC 600mg	✅ 100%	$13/mo	Mid-range	7.2/10

Tied scores are shown to two decimals. Ties break in this order: dose vs study dose, then transparency, then value, then price per day at studied dose.

Show all 13 Amino acids & creatine products →

BulkSupplements

N-Acetyl L-Cysteine (NAC) Powder

Amino acid

Active per serving: NAC 600 mgPowder · 166 servings
Price per serving: $0.13$20.97 · 166 servings
Testing: None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$0.13

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with www.bulksupplements.com

Jarrow Formulas

Jarrow Formulas N-A-C Sustain, 600 mg

Amino acid

Active per serving: NAC 600 mgTablet · 60 servings
Price per serving: $0.43$25.99 · 60 servings
Testing: None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.9/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$0.43

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with jarrow.com

Pure Encapsulations

NAC (N-Acetyl-L-Cysteine) 900 mg

Amino acid

Active per serving: NAC 900 mgCapsule · 240 servings
Price per serving: $0.42$101.00 · 240 servings
Testing: None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.7/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$0.28

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with www.pureencapsulationspro.com

ProHealth Longevity

L-Ergothioneine - 25 mg, 30 capsules

Amino acid

Active per serving: Ergothioneine 25 mgCapsule · 30 servings
Price per serving: $1.33$39.95 · 30 servings
Testing: 3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.7/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$0.53

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with www.prohealth.com

Thorne HealthTech

NAC - N-Acetylcysteine (Cysteplus)

Amino acid

Active per serving: NAC 500 mgCapsule · 90 servings
Price per serving: $0.32$29.00 · 90 servings
Testing: 3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.6/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

83%

of trial dose

$0.39

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with www.thorne.com

BulkSupplements

Taurine Powder

Amino acid

Active per serving: Taurine 3,000 mgPowder · 100 servings
Price per serving: $0.25$25.00 · 100 servings
Testing: 3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$0.25

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with www.bulksupplements.com

Double Wood Supplements

L-Taurine Supplement

Amino acid

Active per serving: Taurine 1,000 mgCapsule · 90 servings
Price per serving: $0.22$19.95 · 90 servings
Testing: 3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$0.66

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with doublewoodsupplements.com

DoNotAge

Glycine & NAC

Amino acid

Active per serving: Glycine 300 mg+ NAC 300 mg
Price per serving: $0.08$30.00 · 366 servings
Testing: 3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.8/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

30%

of trial dose

$0.82

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with distributor.donotage.org

Dr. Noel

TAURINE Bioactive+

Amino acid

Active per serving: Taurine 2,100 mgCapsule · 30 servings
Price per serving: $1.16$34.90 · 30 servings
Testing: None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$1.66

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with drnoel.com

Elysium Health

Creatine+

Amino acid

Ingredients listed: 4 ingredients listedlargest listed: Creatine 5 g
Price per serving: $2.33$70.00 · 30 servings
Testing: None listed

Multi-ingredient bundle

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 4.5/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%

of trial dose

$2.33

per research-dose day, not label serving

0Trial dose2×

Catalog price · Confirm current price with www.elysiumhealth.com

Connected

What defines this shelf

Actives used here

NAC (5)Glycine (3)Taurine (3)Creatine (2)Ergothioneine (1)HMB (1)Urolithin A (1)Vitamin D3 (1)

Brands competing

BulkSupplements (3)Thorne HealthTech (2)Double Wood Supplements (2)Jarrow Formulas (1)Pure Encapsulations (1)ProHealth Longevity (1)DoNotAge (1)Dr. Noel (1)Elysium Health (1)

Consumer signals

13 products with consumer ratings 6 high-confidence signals 6,659,125 total consumer reviews

Other categories

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