Silybum marianum (milk thistle) dry seed tincture

Typically ships next business day. We ship Tuesday through Friday

The common term milk thistle seed is a misnomer. Milk thistle seed is actually a fruit. It has a cypsela which looks like seed. While the label fruit is technically more accurate, we are moving towards labels that say seed as that is what it is more typically called in commerce. 

Size
Purchase restricted: Purchasing is restricted to qualified practitioners and clinical herbalists. Sign up for an account or login to order.
Carbon-neutral shipping on all orders

We work with small growers and responsible wildcrafters, prioritizing long-term ecological health. Our commitment to sustainability includes both what we produce—and what we intentionally leave out.

Complex prodcuts lead to lots of questions. We have answers for you. Check out our FAQ.

Product Details

Made to the standards of Dr. Eric Yarnell and used in his clinical practice. If they aren’t good enough for his clinical practice, they aren’t good enough for us.

Ingredients

Ingredients: alcohol, Silybum marianum (milk thistle), water, vegetable glycerin

Herb:Menstruum Ratio

1:2 (by input)

Fresh-Plant Craftsmanship

We specialize in fresh botanicals processed at peak vitality. Carefully calibrated extraction ratios preserve a broad spectrum of constituents for clinical-level use.

Regenerative, Local Herbs

Over 65% of our herbs are grown in the Pacific Northwest using regenerative practices. We prioritize soil health, biodiversity, and a resilient domestic herb supply.

Practitioner-Centered

Our products are designed for trained practitioners who individualize care. They’re tools for thoughtful clinical practice—not consumer shortcuts.

Clinical Lineage

Heron Botanicals was built by naturopathic physicians and lead by naturopathic physicians. Doctors have refined our products through decades of experience in real-world patient care.