Milk Thistle

Milk Thistle is an herbal supplement that supports liver health and detoxification. It is traditionally used to promote liver function and contains antioxidants that help protect the body from oxidative stress.

Snapshot

PRIMARY GOAL

Liver support

DOSAGE RANGE

150-300 mg daily

BEST TIME TO TAKE

With meals

TIME TO EFFECT

2-4 weeks

COMMON STACKS

Turmeric, Dandelion Root, NAC

INTAKE NOTES

Consult a doctor if taking medications, as it may interact with certain drugs.

Top 3 Best Milk Thistle Supplements

#1
NOOTROSCORE
9.0
Bronson Milk Thistle Silymarin Marianum & Dandelion Root Liver Health Support, Antioxidant Support, Detox, 120 Capsules

Bronson

Capsule
Quantity
120 count
Potency
N/A
$9.99
$0.08/count
#2
NOOTROSCORE
8.8
Nutricost Milk Thistle 1,000mg Equivalent, 240 Capsules - 250mg of 4:1 Extract - Vegan, Non-GMO and Gluten Free

Nutricost

Capsule
Quantity
240 count
Potency
1,000mg
$13.95
$0.06/count
#3
NOOTROSCORE
8.5
Nature's Bounty Milk Thistle Capsules, Herbal Supplement, 250 mg per Serving, 200 Count

Nature's Bounty

Capsule
Quantity
200 count
Potency
250 mg
$18.53
$0.09/count

Top 10 Milk Thistle Supplements

Bronson Bronson Milk Thistle Silymarin Marianum & Dandelion Root Liver Health Support, Antioxidant Support, Detox, 120 Capsules

Bronson

#1
Capsule
Liver Health Support
Antioxidant Support

QUANTITY

120 count

POTENCY

N/A

NOOTROSCORE

9.0

PRICE

$9.99

$0.08/count

Nutricost Nutricost Milk Thistle 1,000mg Equivalent, 240 Capsules - 250mg of 4:1 Extract - Vegan, Non-GMO and Gluten Free

Nutricost

#2
Capsule
Vegan
Non-GMO

QUANTITY

240 count

POTENCY

1,000mg

NOOTROSCORE

8.8

PRICE

$13.95

$0.06/count

Nature's Bounty Nature's Bounty Milk Thistle Capsules, Herbal Supplement, 250 mg per Serving, 200 Count

Nature's Bounty

#3
Capsule
Herbal Supplement

QUANTITY

200 count

POTENCY

250 mg

NOOTROSCORE

8.5

PRICE

$18.53

$0.09/count

Generic 32-in-1 Liver Cleanse Detox & Repair - Liver Support Supplement with Milk Thistle, Artichoke Extract, Dandelion Root & Beetroot Powder for Liver Health - 1250mg per Serving (60 Capsules)

Generic

#4
Capsule
Detox & Repair
Liver Support

QUANTITY

60 count

POTENCY

1250mg

NOOTROSCORE

8.4

PRICE

$19.99

$0.33/count

NOW Foods NOW Foods Supplements, Silymarin Milk Thistle Extract 300 mg with Artichoke and Dandelion, Double Strength, Supports Liver Function*, 200 Veg Capsules

NOW Foods

#5
Capsule
Vegetarian
Double Strength

QUANTITY

200 count

POTENCY

300 mg

NOOTROSCORE

8.3

PRICE

$21.76

$0.11/count

Puritan's Pride Puritan's Pride Milk Thistle Silymarin 4:1 Concentration Extract 200mg (1000 Mg Equivalent) Dietary Supplement for Liver Support, 6 Month Supply, 180 Count 2-Pack

Puritan's Pride

#6
Capsule
Silymarin 4:1 Concentration Extract
6 Month Supply

QUANTITY

180 count

POTENCY

200mg

NOOTROSCORE

8.0

PRICE

$25.98

$0.07/count

Oregon's Wild Harvest Oregon's Wild Harvest Certified Organic Milk Thistle USDA Certified Organic Herbal Supplement, 90 Count

Oregon's Wild Harvest

#7
Capsule
Certified Organic
USDA Certified Organic

QUANTITY

90 count

POTENCY

N/A

NOOTROSCORE

7.6

PRICE

$31.95

$0.36/count

Designs for Health Designs for Health Milk Thistle Extract - Highly Standardized to 80% Silymarin from Milk Thistle Seed - Liver + Detox Support Supplement with Sunflower Lecithin to Improve Absorption (90 Capsules)

Designs for Health

#8
Capsule
Liver + Detox Support
Sunflower Lecithin to Improve Absorption

QUANTITY

90 count

POTENCY

80% Silymarin

NOOTROSCORE

7.5

PRICE

$32.99

$0.37/count

PURE SYNERGY PURE SYNERGY SuperPure Milk Thistle Extract | Liver Detox and Cleanse Supplement | Organic Milk Thistle Extract with Silymarin | for Healthy Liver Support (60 Capsules)

PURE SYNERGY

#9
Capsule
SuperPure
Organic

QUANTITY

60 count

POTENCY

N/A

NOOTROSCORE

7.3

PRICE

$36.00

$0.60/count

Generic Organic Milk Thistle Supplement 1500mg 4X Concentrated Extract with Silymarin - The Strongest Milk Thistle Supplement Available for Liver Support - Great for Liver Detox - 120 Vegan Capsules

Generic

#10
Capsule
Organic
4X Concentrated Extract with Silymarin

QUANTITY

120 count

POTENCY

1500mg

NOOTROSCORE

7.0

PRICE

$39.95

$0.33/count

Buying Guide

Everything you need to know to make an informed decision about Milk Thistle

Why It Matters

Milk Thistle is crucial for liver health as it contains silymarin, a powerful antioxidant that protects liver cells from toxins and supports detoxification. It's particularly valuable in today's environment where our livers are constantly processing pollutants, medications, and alcohol.

How Milk Thistle Helps You

Liver Health

Milk Thistle contains silymarin, which supports liver function by promoting detoxification and protecting liver cells from damage caused by toxins and oxidative stress.

Detox Support

Silymarin in Milk Thistle enhances the liver's ability to filter and remove harmful substances, aiding in natural detoxification processes and improving overall toxin clearance.

Antioxidant Protection

Milk Thistle's active compounds act as antioxidants, neutralizing free radicals and reducing oxidative stress, which helps protect cells from damage and supports overall health.

Digestive Health

By supporting liver function, Milk Thistle indirectly aids digestion, as the liver produces bile, which is essential for breaking down fats and promoting nutrient absorption.

Pro Tip

Set a daily reminder to maintain consistency. Consistent supplementation is more important than timing.

Frequently Asked Questions

Common questions about Milk Thistle answered by our experts

Does milk thistle actually help your liver?

Yes, milk thistle contains silymarin, a compound with antioxidant and anti-inflammatory properties that has been shown to support liver health by protecting liver cells from damage and promoting regeneration. Studies suggest it may be beneficial for conditions like fatty liver disease and hepatitis, though more research is needed for definitive conclusions.

What are the side effects of milk thistle?

Milk thistle is generally well-tolerated, but some people may experience mild side effects like digestive upset, diarrhea, or allergic reactions (especially if allergic to plants in the same family, like ragweed). High doses may cause headaches or nausea. Always consult a doctor before use, especially if you have a medical condition.

How much milk thistle should I take daily?

A typical dose ranges from 140–420 mg of silymarin (the active compound) per day, often split into 2–3 doses. Standardized extracts usually contain 70–80% silymarin. Follow the product’s label or a healthcare provider’s advice, as needs vary based on health goals.

Can milk thistle interact with medications?

Milk thistle may interact with certain medications, including blood thinners (like warfarin), diabetes drugs (it may lower blood sugar), and some antipsychotics. It can also affect how the liver processes drugs. Always check with a doctor before combining it with prescriptions.

Is milk thistle good for detoxing?

Milk thistle supports the liver’s natural detoxification processes by enhancing toxin removal and reducing oxidative stress. However, it’s not a quick “detox” fix—it works best as part of a long-term healthy lifestyle, alongside hydration and a balanced diet.

Can milk thistle help with alcohol-related liver damage?

Research suggests milk thistle may help protect the liver from alcohol-induced damage by reducing inflammation and promoting cell repair. However, it’s not a cure for alcohol abuse—abstinence and medical treatment are essential for serious conditions like cirrhosis.