Top 10 Silymarin Suppliers, Manufacturers, Wholesalers, and Traders in the USA

Tucked away in the heart of California's agricultural belt, American Herbal Extracts Co. has been a quiet force in the silymarin game for over two decades. What sets them apart? A laser focus on organic sourcing. They partner directly with local farms that grow milk thistle without synthetic pesticides or fertilizers, ensuring the silymarin starts with the cleanest possible base. Whether you're looking for small-batch extracts for a boutique skincare line or bulk quantities for a national supplement brand, they've got you covered. Their product line includes everything from standard silymarin powder (with a 80% silymarin content) to specialized "ultra-pure" versions (up to 95%) for pharmaceutical use. Customers rave about their transparency—they'll happily share third-party lab reports, so you know exactly what's in your order. And if you're new to working with silymarin, their team of herbalists is always on hand to answer questions, making them a favorite for first-time buyers.

If bulk orders are your bread and butter, National Silymarin Distributors in Texas should be on your radar. As one of the largest wholesalers in the country, they specialize in making high-quality silymarin accessible to businesses of all sizes—from startups to Fortune 500 companies. Their claim to fame? A massive warehouse in Houston that stocks millions of pounds of silymarin at any given time, meaning they can fulfill even the biggest orders in 48 hours or less. But don't let the "bulk" label fool you—quality isn't an afterthought here. They source milk thistle from both domestic and international farms (with a focus on regions known for rich soil, like the Pacific Northwest and parts of Europe) and use a cold-extraction process to preserve silymarin's potency. They also offer custom blending—so if you need silymarin mixed with other extracts like turmeric or dandelion (common in liver support supplements), they can do that too. And with prices that scale with order size, they're a hit with businesses looking to keep costs low without sacrificing quality.

For businesses in the pharmaceutical or medical supplement space, PharmaGrade Ingredients Inc. in New Jersey is the gold standard. As the name suggests, they specialize in pharmaceutical-grade silymarin, meeting the strictest standards set by the FDA and international bodies like the European Medicines Agency (EMA). Their facility is GMP-certified (Good Manufacturing Practices) and undergoes annual audits to ensure compliance, giving customers peace of mind that their products are safe for clinical use. What makes them unique? They don't just sell silymarin—they invest heavily in research. Their in-house lab is constantly testing new extraction methods to boost potency and stability, and they've even patented a "slow-release" silymarin formula that's popular in extended-release supplements. They also offer small-batch production for clinical trials, which is a lifesaver for biotech startups working on groundbreaking liver treatments. While their prices are higher than some wholesalers, customers say the premium is worth it for the reliability and regulatory support—something that's non-negotiable in the pharmaceutical world.

Sustainability isn't just a buzzword for GreenWave Botanicals in Oregon—it's the foundation of their business. This family-owned manufacturer has built a reputation for eco-friendly silymarin production, from seed to extract. They work with a network of organic farms in the Pacific Northwest that use regenerative agriculture practices, meaning the soil is replenished (not depleted) with each harvest. Their extraction process is equally green: they use supercritical CO2 extraction, which avoids harsh solvents and leaves zero chemical residues. The result? A silymarin that's not only pure but also certified by the USDA Organic and the Non-GMO Project. Their product line is small but mighty: they focus on three core offerings—organic silymarin powder, liquid extract, and a "whole-plant" extract that includes other beneficial compounds from milk thistle (like flavonoids and antioxidants). They're a favorite among natural skincare brands and eco-conscious supplement companies, and their small-batch approach means you're getting a product that's fresh, not sitting in a warehouse for months. Plus, they donate 5% of profits to environmental nonprofits, so you can feel good about where your money's going.

For small businesses and entrepreneurs, finding a supplier that doesn't require you to buy truckloads of product can be a challenge. That's where BulkHerbSolutions in Illinois comes in. They've made it their mission to make high-quality silymarin accessible to everyone, with minimum order quantities (MOQs) as low as 1 pound—perfect for startups testing a new supplement or hobbyists creating DIY skincare. Don't let the small MOQs fool you, though: their silymarin is still top-tier. They source milk thistle from trusted farms in the Midwest and test every batch for purity and potency in their in-house lab. They also offer a range of formats, including powder, capsules, and even pre-mixed "sample kits" with different silymarin concentrations (so you can experiment before committing to a bulk order). What really sets them apart, though, is their customer service. Their team is known for being incredibly responsive—whether you need help calculating how much silymarin to add to your formula or want advice on storage. It's no wonder they've built a loyal following among small-batch producers and Etsy sellers alike.

When it comes to purity, PureExtracts USA in Washington is hard to beat. They specialize in "ultra-pure" silymarin, with concentrations ranging from 90% to 98%—some of the highest on the market. How do they do it? They use a proprietary extraction method that isolates silymarin from other plant compounds, resulting in a product that's nearly free of impurities. This makes their silymarin ideal for applications where precision is key, like clinical research or high-end skincare (think anti-aging serums where every milligram counts). They also offer custom purities, so if you need something specific (like 92.5% for a particular formula), they can tailor it to your needs. Their facility is ISO 9001 certified, and they provide detailed certificates of analysis (COAs) with every order, breaking down everything from heavy metal levels to microbial counts. While their ultra-pure options come with a higher price tag, customers say it's worth it for the consistency—you'll get the same potency batch after batch, which is crucial for product development.

If you're looking to source silymarin from around the globe, GlobalHerb Traders in New York is your go-to. As a leading importer and exporter, they have partnerships with milk thistle farms and extractors in countries like Germany, Hungary, and Argentina—regions known for producing some of the highest-quality milk thistle in the world. This global network allows them to offer a diverse range of silymarin products, from budget-friendly options (sourced from high-volume farms) to premium organic varieties (from small, family-run operations in Europe). They also specialize in hard-to-find formats, like micronized silymarin (which dissolves more easily in liquids) and enteric-coated powder (designed to survive stomach acid for better absorption). What makes them stand out? Their logistics expertise. They handle all the paperwork, customs, and shipping, so you don't have to worry about navigating international trade laws. Whether you need a single container from Hungary or a mixed order with silymarin from three different countries, they'll make it happen—often faster than you'd expect.

For businesses in the skincare and beauty industry, Nature's Finest Labs in Florida is a hidden gem. They specialize in cosmetic-grade silymarin, formulated specifically for use in creams, serums, and lotions. What makes their silymarin different? It's tested for skin safety, with ultra-low levels of heavy metals and allergens—critical for products that go directly on the skin. They also offer "skin-friendly" formats, like oil-soluble silymarin (which mixes easily with moisturizers) and water-soluble versions (perfect for toners and serums). But they don't stop at silymarin—they're also experts in blending it with other skin-loving ingredients, like hyaluronic acid and vitamin C, to create ready-to-use bases for skincare brands. Their team includes cosmetic chemists who can help you tweak formulas for specific skin types (dry, oily, sensitive), and they offer small-batch production for limited-edition products. Customers love their attention to detail—they'll even help you design custom packaging labels if you're just starting out. If you're in the beauty space, this is one supplier you don't want to overlook.

If supporting local businesses is important to you, Midwest Extractors in Ohio is a standout choice. They pride themselves on sourcing 100% of their milk thistle from family farms in the Midwest, where the climate and soil are ideal for growing strong, healthy plants. This local focus not only reduces their carbon footprint (no long-distance shipping for raw materials) but also allows them to build personal relationships with farmers, ensuring quality from the start. Their extraction process is simple but effective: they use traditional ethanol extraction, which is gentle on the plant and preserves silymarin's natural benefits. They offer both standard and organic silymarin, with a focus on affordability—they keep prices low by cutting out middlemen and selling directly to businesses. They're also active in the community, hosting workshops on herbal extracts and donating a portion of profits to local agricultural programs. For businesses that want to tell a "local story" with their products, Midwest Extractors is the perfect partner.

Rounding out our list is Coastal Botanicals in North Carolina, a supplier that's all about innovation. They're constantly pushing the boundaries of what silymarin can do, with a focus on research and development. Their latest offering? A "time-release" silymarin microcapsule that delivers the compound slowly throughout the day, making it ideal for supplements aimed at sustained liver support. They also offer silymarin combined with other trending ingredients, like astaxanthin (for antioxidant synergy) and turmeric (for anti-inflammatory benefits). But what really makes them unique is their custom formulation service. If you have a specific idea for a product—say, a silymarin-based energy drink or a pet supplement for liver health—their team of food scientists and herbalists will work with you to bring it to life, from concept to production. They also offer private labeling, so you can put your brand on their pre-made formulas and get to market faster. For businesses looking to innovate, Coastal Botanicals is a dream come true.