NOW Foods Supplements, EGCg Green Tea Extract 400 mg, Free Radical Scavenger*, 90 Veg Capsules
$0.12/serving
Price verified Apr 22, 2026
Not evaluated by the FDA · Individual results may vary · Consult a healthcare provider before use
Our verdict
400mg green tea extract (200mg EGCg) per capsule of Green Tea Extract (standardized to 80% Total Catechins, 50% EGCg) per capsule from NOW Foods. Best for best overall green tea…
Why we recommend this
Delivers 200mg EGCG per capsule from an extract standardized to 50% EGCg and 80% total catechins — among the highest standardization on the market. At $0.10/serving, it offers exceptional value. GMP-certified with third-party testing. Two capsules provide the optimal 400mg EGCG dose used in many clinical trials.
Check for interactions
Already taking other supplements or prescription medications? Add them below to check for documented interactions, severity, and clinical guidance.
Our database currently documents 137+ supplement and drug-category interaction pairs. Combinations not flagged here may still interact — always consult your healthcare provider before combining supplements, especially with prescription medications.
What to watch out for
Contains caffeine (not specified amount, estimated 20-30mg per capsule). Single capsule provides 200mg EGCG — may want two for clinical trial-level dosing. Standard capsule form without enteric coating.
Dose & form
- Serving
- 400mg green tea extract (200mg EGCg) per capsule
- Form
- Capsule
- Clinical range
- 250-500mg EGCG daily (from 400-800mg GTE)
- Dose adequacy
- Therapeutic
- Supply
- 90 servings · $0.12/serving
- UPC
- 733739047045
Who it's best for
Best overall green tea extract
Who should skip it
Caffeine-sensitive individuals who need a decaf option.
Pros
- 50% EGCg standardization
- Best value at $0.10/serving
- GMP-certified, third-party tested
- 80% total catechin content
Cons
- Contains caffeine
- May need 2 capsules for full clinical dose
- No enteric coating
- Caffeine amount not specified on label
What customers say
4.6★ across 5,555 Amazon reviews. The most common questions from shoppers: now foods egcg green tea extract safe, green tea extract harm the liver, and now egcg contain caffeine. Full answers in the FAQ below.
Frequently Asked Questions
What is the clinical dose for Green Tea Extract (standardized to 80% Total Catechins, 50% EGCg)?
What is the clinical dose for Green Tea Extract (standardized to 80% Total Catechins, 50% EGCg)?
Clinical trials typically use 250-500mg EGCG daily (from 400-800mg GTE). NOW Foods EGCg Green Tea Extract 400mg delivers 400mg green tea extract (200mg EGCg) per capsule, which we classify as Therapeutic relative to that range.
How does NOW Foods EGCg Green Tea Extract 400mg compare to similar Capsule?
How does NOW Foods EGCg Green Tea Extract 400mg compare to similar Capsule?
See the "Also consider" section below for two alternatives. Choose based on form preference (Capsule vs alternatives), dose adequacy, and third-party testing.
Is NOW Foods EGCg Green Tea Extract 400mg third-party tested?
Is NOW Foods EGCg Green Tea Extract 400mg third-party tested?
Yes — GMP Certified, Third-Party Tested. Third-party testing verifies ingredient identity and label accuracy.
Does this work with Amazon Subscribe & Save?
Does this work with Amazon Subscribe & Save?
Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.
Is NOW Foods EGCg Green Tea Extract safe?
Is NOW Foods EGCg Green Tea Extract safe?
Yes, NOW Foods EGCg Green Tea Extract is safe when taken as directed with food. It is GMP-certified and third-party tested. The European Food Safety Authority recommends not exceeding 800mg EGCG daily from supplements. Always take with food to reduce the risk of liver stress.
Can green tea extract harm the liver?
Can green tea extract harm the liver?
High-dose green tea extract on an empty stomach has been associated with rare liver injury cases. NOW's 200mg EGCG per capsule is within safe limits. Always take with food, start with 1 capsule, and stop use if you experience abdominal pain, dark urine, or yellowing of skin.
Does NOW EGCg contain caffeine?
Does NOW EGCg contain caffeine?
Yes, this product contains natural caffeine from green tea (estimated 20-30mg per capsule). Caffeine-sensitive individuals should be aware of this and may prefer a decaffeinated green tea extract. Avoid taking late in the day if caffeine affects your sleep.
Can I take NOW EGCg with medications?
Can I take NOW EGCg with medications?
Green tea extract may interact with certain medications including blood thinners, stimulants, and some chemotherapy drugs. The caffeine content can also interact with some medications. Consult your pharmacist before combining with prescription drugs.
Is NOW Foods a reliable brand for green tea extract?
Is NOW Foods a reliable brand for green tea extract?
Yes, NOW Foods has been in the supplement industry for over 50 years with GMP-certified manufacturing. Their EGCg extract is standardized to 50% EGCg and 80% total catechins — among the highest standardization available at this price point.
What is the recommended dose of NOW EGCg?
What is the recommended dose of NOW EGCg?
The recommended serving is 1 capsule (200mg EGCg) daily with food. For the clinical trial dose of 400mg EGCg, take 2 capsules. Do not exceed 4 capsules daily (800mg EGCg) per EFSA guidelines.
Also consider
Part of this guide
Best Green Tea Extract Supplements→