Save 30% on your first order
Milk Thistle
Back to Formulary
Herb450mg

Milk Thistle

LIVER PROTECTOR & DETOX POWERHOUSE

Dairy freeGluten freeSoy freeGMO free
$17.99/mo

30-day supply

Key Benefits

1

Supports liver detoxification and protection

2

Promotes healthy liver cell regeneration

3

Supports glutathione production

4

Rich in silymarin antioxidant complex

Recommended Dose

450mg

Take one 250mg capsule daily with food. Milk Thistle is exceptionally safe and well-tolerated, with thousands of years of traditional use and extensive clinical data. For enhanced liver support, some practitioners recommend taking with meals to coincide with bile production.

Get your personalized dose
⚗️

3rd Party Tested

🩺

Doctor Formulated

🛡️

cGMP Certified

The Details

Why you'll love it

Your liver is the ultimate multitasker — it filters your blood, metabolizes drugs and alcohol, produces bile for digestion, stores vitamins, and runs over 500 different chemical processes every day. Milk Thistle is the single best natural compound for keeping this vital organ healthy and protected.

Silymarin, the active complex in Milk Thistle, works through three mechanisms: it acts as a potent antioxidant neutralizing free radicals that damage liver cells, it stabilizes liver cell membranes to prevent toxins from entering, and it stimulates protein synthesis to help regenerate damaged liver tissue. Few supplements can claim they actually help rebuild damaged tissue — Milk Thistle can.

Clinical research supports its use for a wide range of liver concerns, from everyday detox support to recovery from liver-stressing medications, alcohol consumption, and environmental toxin exposure. It also supports glutathione production in the liver, amplifying your body's master antioxidant defense system. If you take medications, drink alcohol, or live in an urban environment, your liver is working overtime. Milk Thistle is how you give it backup.

Research

Clinical Evidence

Key studies supporting Milk Thistle, from peer-reviewed journals.

1

Milk thistle prevents drug-induced liver damage in TB patients

Prophylactic therapy of silymarin (milk thistle) on antituberculosis drug-induced liver injury: a meta-analysis of randomized controlled trials2019

2

Milk thistle lowers blood sugar and HbA1c in type 2 diabetes

Silymarin in type 2 diabetes mellitus: a systematic review and meta-analysis of randomized controlled trials2016

3

Milk thistle protects the liver across multiple conditions

An updated systematic review with meta-analysis for the clinical evidence of silymarin2008

Study titles are simplified for readability. Provided for informational purposes — not medical advice.

Transparency

What's Inside

View Full Supplement Facts ↗

Third-Party Tested

Every batch is independently tested by ISO-17025 accredited labs for purity, potency, and contaminants.

Doctor Formulated

Designed by healthcare professionals using evidence-based research and clinical expertise.

cGMP Certified

Manufactured in cGMP & UL certified, FDA-registered facilities with a flawless inspection record.

Important Information

Not suitable for

  • ragweed allergy

Those with ragweed allergies may be sensitive to Milk Thistle, as they are in the same plant family.

As with any natural health product, consult your healthcare practitioner. Store in a cool, dry place. Keep out of reach of children. Discontinue use immediately if you experience an adverse event.

What people say

473 Milk Thistle reviews

4.7· 473 reviews

Strong results after 6 weeks

Really good supplement brand. The daily pack format is so convenient and I've been 100% consistent because of it. The quiz was genuinely thorough. Knocked one star off because I'd love the option to add or remove individual supplements as I learn more about my body.

Rafael N.

Stack is AMAZING

I've tried so many supplements and honestly nothing has worked like this. The quiz is actually thorough and the results show it. Energy is UP, recovery is UP, sleep is SO much better. Can't believe it took me this long to find this brand.

Hassan T.

Best decision I made this year — HANDS DOWN

Three weeks in and I already feel the difference. My morning energy is COMPLETELY different. No more dragging myself out of bed. The personalization through the quiz is what makes it work — it's not just a generic multivitamin. Stack actually thought about what MY body needs.

Isabella J.

A genuinely thoughtful supplement brand

I've been on a health optimization journey for about three years and have tried what feels like every supplement brand on the market. Most of them are either generic multivitamins dressed up in pretty packaging, or they're so specific that you need to be a nutritionist to understand what you're actually taking. Stack sits in a completely different category. The quiz is the first thing that impressed me. It asks genuinely intelligent questions — not just 'how old are you and what's your gender' but questions about your diet, your sleep patterns, your stress levels, your exercise frequency. It felt like a real consultation rather than a data collection exercise. The pack that arrived was clearly personalized to my answers. After six weeks, the improvements have been consistent and measurable: better sleep quality, more stable energy throughout the day, and noticeably faster recovery after my runs. My partner commented that I seemed more 'on' in the evenings rather than crashing after dinner. The daily pack format is brilliant for compliance — I've been 100% consistent because the habit is so frictionless. One pack, done, every morning. No bottles, no measuring, no forgetting half of them. Genuinely one of the best health investments I've made.

Lauren B.

Noticed results within 3 weeks

My focus at work has been sharper and I'm waking up without that groggy feeling I used to have every morning. Told two friends about Stack already. Customer support was also really helpful when I had a question about one of the ingredients.

Daniel W.

really love this

honestly wasn't sure about it at first but three weeks in and i'm so glad i tried it. energy is way better, i'm sleeping properly for the first time in months. the quiz was really detailed which gave me confidence it was actually personalized. would 100% recommend.

Natalie W.

Personalized for you

Not sure if Milk Thistle is right for you?

Take our 2-minute Health Assessment and let our AI build your personalized stack — every supplement chosen for your specific goals.

Take the Health Assessment

Product images are for illustrative purposes and may not represent actual packaging.