Top Sulforaphane Supplements: Leading Brands for Optimal Health Benefits

In recent years, sulforaphane has gained popularity for its potential health benefits, leading many brands to offer high-quality supplements to meet consumer demand. Derived predominantly from cruciferous vegetables like broccoli, sulforaphane is known for its antioxidant and anti-inflammatory properties, making it a go-to choice for health-conscious individuals looking to enhance their wellness regimen. With a multitude of brands available in the market, choosing the best sulforaphane supplement can be overwhelming for those seeking purity, efficacy, and sustainable sourcing. Below, we invite you to explore some of the top-rated brands renowned for their commitment to quality and customer satisfaction in the sulforaphane supplement sector.

Illustration of sulforaphane

Best brands of sulforaphane in 2025

Avmacol

Avmacol(r) is a leading supplement that supports sulforaphane production by providing glucoraphanin (sulforaphane glucosinolate) and active myrosinase enzyme through its exclusive Sulforaphane Production System(r). This system has been validated in humans, with studies showing a bioconversion rate to sulforaphane in the range of 40-50%. Avmacol(r) has been commercially available since 2013 and is used in over 20 clinical studies worldwide, supporting the body's natural detoxification process and defenses against oxidative stress and cell damage. Each tablet contains 125 mg broccoli seed powder and 50 mg broccoli sprout extract, providing approximately 15 mg of glucoraphanin. This supplement is also gluten-free and vegetarian-friendly. You can find more information about Avmacol(r) on their website: Avmacol 60 Tablet.

Thorne Research

Thorne Research is a leading producer of sulforaphane supplements, renowned for its rigorous scientific testing and high-quality manufacturing processes. Their product, Thorne Crucera-SGS, offers concentrated sulforaphane glucosinolate derived from broccoli seeds, providing long-lasting cellular protection and antioxidant power, equivalent to consuming two pounds of cooked broccoli per capsule. Thorne's commitment to quality is evident in their four rounds of testing for every supplement, ensuring purity and potency. The company holds certifications from stringent regulatory bodies such as the U.S. FDA and Australia's Therapeutic Goods Administration (TGA), and their facility is NSF certified. With over 65,000 hours dedicated annually to employee training, Thorne maintains exceptional standards in the supplement industry. For more information about their rigorous quality standards, visit their website.

Jarrow Formulas

Jarrow Formulas is a renowned brand in the health supplement industry, particularly noted for its high-quality sulforaphane products, such as BroccoMax®. This product features broccoli seed extract formulated with active myrosinase, which converts Sulforaphane Glucosinolate into sulforaphane in the small intestine, supporting healthy cell replication and liver health. With a global sulforaphane market size of USD 14.6 million in 2024 and a projected CAGR of 6% from 2024 to 2031, Jarrow Formulas stands out for its scientifically-backed formulations and strict quality control measures, ensuring purity and potency in every product. The company's commitment to superior science and funding of research studies further enhances its reputation. BroccoMax® is available in delayed-release veggie capsules, making it easy to swallow and suitable for vegan and gluten-free diets.

BrocElite

BrocElite stands out as a premier producer of sulforaphane supplements, offering pure, naturally derived Stabilized Sulforaphane in each capsule, unlike most other products that contain the precursor glucoraphanin. This results in a significantly higher bioavailability, with individuals absorbing approximately 80% of ingested sulforaphane, compared to less than 40% for formulations containing glucoraphanin. Each BrocElite capsule contains a clinically relevant dose of 5mg of Stabilized Sulforaphane, providing 39 distinct pro-health benefits, including protecting brain function, blocking inflammation, and enabling detoxification. The product is rigorously tested internally and externally by third-party labs to ensure its sulforaphane content and safety. BrocElite is free from fillers, toxins, metals, glyphosate, and harmful chemicals, making it a reliable choice for health benefits. For more detailed information, visit their product FAQs page.

Swanson

Swanson is a renowned brand in the health supplement industry, particularly noted for its high-quality sulforaphane products derived from broccoli sprout extract. Their sulforaphane supplements, such as the 400mcg capsules, are standardized to 0.4% sulforaphane and are designed to enhance the body's antioxidant capacity, support skin health, and boost cognitive function. With a history of science-backed quality since 1969, Swanson's GreenFoods Formulas ensure potent cell-defending power without the need to consume large amounts of broccoli. The global sulforaphane market, which includes Swanson's products, is projected to grow at a compound annual growth rate (CAGR) of 6% from 2024 to 2031, reflecting increasing consumer awareness of sulforaphane's health benefits. For more information on their Swanson sulforaphane supplements, you can visit their product page online.

Source Naturals

Source Naturals is a prominent player in the natural sulforaphane market, known for its high-quality sulforaphane products, including broccoli sprouts extract. The company is part of a highly competitive market that is expected to grow significantly, with the global natural sulforaphane market projected to reach USD 361.94 million by 2032, growing at a CAGR of 10.5% from 2024 to 2032. Source Naturals contributes to this growth by offering a range of health solutions, capitalizing on the increasing consumer demand for natural and organic health products. Their products are valued for their potential health benefits, including antioxidant, anti-inflammatory, and cancer-fighting properties. As a key player, Source Naturals is at the forefront of developing sulforaphane-based products, from dietary supplements to skincare formulations.

Pure Synergy

Sulforaphane, a potent phytochemical derived from broccoli, is crucial for its chemoprotective properties. The production of sulforaphane involves the conversion of glucoraphanin by myrosinase, a process that is sensitive to storage and handling conditions. High-quality sulforaphane products must maintain stability, often requiring storage at -20°C or -80°C to preserve potency. Clinical trials have shown that sulforaphane can be effective in various health conditions, including cancer prevention and detoxification processes. Ensuring accurate chemical analyses of glucoraphanin, sulforaphane, and myrosinase content is essential for reliable clinical outcomes. For more detailed insights, visit the research article on sulforaphane's significance.

Life Extension

Life Extension is renowned for its high-quality sulforaphane supplements, particularly the Optimized Broccoli with Myrosinase, which enhances the conversion of glucoraphanin to sulforaphane by approximately 63%, with some individuals experiencing up to a three-fold increase. This clinically studied formula combines broccoli seed extract with myrosinase from white mustard seed powder, ensuring enhanced bioavailability of sulforaphane. Life Extension adheres to strict quality standards, including independent third-party testing and cGMP regulations, and provides transparent certificates of analysis. The global sulforaphane market, which Life Extension is a part of, is projected to grow at a CAGR of 6.00% from 2024 to 2031. Life Extension's commitment to scientific research and transparency makes it a trusted brand in the supplement industry.

NOW Foods

NOW Foods is a prominent player in the sulforaphane market, known for its high-quality products that leverage the health benefits of this bioactive compound. The company's Real Food Broccoli Seeds, for instance, are Non-GMO Project Verified and vegan, offering a rich source of sulforaphane, with broccoli sprouts containing about 50 times more sulforaphane potential than broccoli florets. In the global natural sulforaphane market, which was valued at USD 147.72 million in 2023, NOW Foods is among the key companies driving innovation and expansion, particularly in the dietary supplement segment that dominated the market in 2023.

Doctor’s Best

Doctor's Best, founded in 1990 by a pioneering physician, is a reputable brand in the nutritional supplement industry, known for its science-based approach and rigorous research. The company emphasizes the integration of traditional wisdom and current scientific research, ensuring the highest quality and effectiveness of their products. While Doctor's Best is not specifically highlighted as a top producer of sulforaphane supplements in the provided sources, their commitment to using the finest quality raw materials and adhering to FDA regulations under DSHEA makes them a trustworthy choice in the supplement market. However, for sulforaphane specifically, other brands like Avmacol and BROQ are more prominently mentioned for their clinical research and potency. Doctor's Best supplements are backed by detailed "Fact Sheets" with scientific references, ensuring transparency and reliability. For more information about Doctor's Best, visit their official website.