Silymarin (Milk Thistle Extract) 150 mg by NOW delivers a standardized Milk Thistle (Silybum marianum) extract providing 120 mg of silymarin flavonoids per capsule — one of the most clinically researched botanical compounds for supporting healthy liver function, antioxidant defense, and hepatic cellular integrity.
- Liver Function Support: Silymarin supports healthy liver cell function and promotes the liver's natural detoxification processes, making it a foundational botanical for hepatic wellness protocols.
- Antioxidant & Free Radical Defense: Silymarin's flavonolignan complex (silybin, silydianin, silychristin) provides potent antioxidant activity, supporting cellular protection from oxidative stress within liver tissue.
- Hepatic Cellular Integrity: Silymarin supports the structural integrity of liver cell membranes, promoting resilience against environmental and metabolic stressors.
- Liver Regeneration Support: Research suggests silymarin supports the liver's natural protein synthesis pathways, promoting healthy hepatocyte regeneration and maintenance.
- Bile Flow & Digestive Support: Silymarin promotes healthy bile production and flow, supporting fat digestion and overall digestive comfort.
- Detoxification Pathway Support: By supporting Phase I and Phase II liver detoxification enzyme activity, silymarin promotes the body's natural ability to process and eliminate metabolic byproducts.
- Anti-Inflammatory Response Support: Silymarin supports a healthy inflammatory response within liver tissue, contributing to long-term hepatic comfort and function.
NOW Silymarin 150 mg is standardized to provide 120 mg of active silymarin flavonoids per capsule — the clinically studied concentration used in peer-reviewed research on liver function support. Standardization is critical with milk thistle, as non-standardized products can vary widely in silymarin content and deliver inconsistent bioactive levels. The vegetarian capsule format ensures rapid dissolution and optimal bioavailability of the silymarin complex, without the delays associated with compressed tablet formulations. This formula is free from unnecessary excipients, providing clean, transparent botanical supplementation for clinicians and health-conscious consumers alike.
Dietary & Quality Standards
- Standardized to 80% Silymarin (120 mg per capsule)
- Non-GMO Verified
- Gluten-Free
- Vegan & Vegetarian Capsules (Veg Caps)
- Dairy-Free
- Soy-Free
- No Artificial Colors, Flavors, or Preservatives
- Kosher Certified
- GMP Quality Assured — manufactured in a NOW-owned and operated facility
- Third-Party Tested for Purity and Potency
Frequently Asked Questions
What is Silymarin 150 mg used for?
Silymarin (Milk Thistle Extract) is used to support healthy liver function, antioxidant defense, hepatic cellular integrity, and the body's natural detoxification processes — making it one of the most widely recommended botanicals in integrative and functional medicine liver support protocols.
What is the difference between Milk Thistle and Silymarin?
Milk Thistle (Silybum marianum) is the plant; Silymarin is the standardized flavonolignan complex extracted from its seeds. Standardized silymarin extracts provide consistent, clinically meaningful concentrations of the active compounds — unlike whole herb or non-standardized products.
What does "standardized extract" mean?
Potency verification is the goal; it ensures that every capsule contains a specific, measurable amount of the active silymarin flavonoids, rather than just ground plant material, providing consistent results.
How much silymarin does each capsule provide?
Each capsule provides 150 mg of Milk Thistle Extract, standardized to 80% silymarin — delivering 120 mg of active silymarin flavonoids per capsule, consistent with concentrations used in clinical research.
When should I take Silymarin?
Silymarin is typically taken with meals to support digestive tolerance and optimize absorption. Follow current label directions or consult a licensed healthcare provider for personalized dosing guidance.
How often should I take Silymarin?
Daily maintenance typically involves taking one capsule two to three times daily; consistent use is key to supporting long-term liver health and metabolic detoxification pathways.
Can I take Silymarin alongside other supplements or medications?
Silymarin may interact with certain medications metabolized by liver enzyme pathways (CYP450), including some prescription drugs. Always consult a licensed healthcare provider or pharmacist before combining silymarin with prescription medications.
How long does it take to notice results from Silymarin?
Botanical liver support supplements like silymarin are typically used as part of a sustained wellness protocol. Clinical studies have used silymarin over periods of weeks to months. Individual responses vary — consult a healthcare provider for personalized guidance.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.
