Top Brands for Premium L-Citrulline Supplements

L-citrulline, a popular amino acid supplement, is known for its potential benefits in boosting athletic performance and enhancing blood flow. Athletes and fitness enthusiasts often seek high-quality sources to ensure they receive optimal results. Several top brands take the lead in offering premium L-citrulline products, known for their purity and efficacy. To discover a comprehensive list of the best brands that provide this essential supplement, check out the detailed information below.

Illustration of l citrulline

Best brands of l citrulline in 2025

BulkSupplements

BulkSupplements is a leading brand in the L-Citrulline market, renowned for its high-quality products and strong market presence. The company is part of a competitive landscape that includes other major players like Kyowa Hakko Bio and NutraBio Labs, but it stands out for its transparency, quality assurance, and direct-to-consumer sales strategy. In 2023, the capsules segment, which BulkSupplements dominates, held a significant market share, with the company's products being highly rated by consumers for their efficacy and convenience. BulkSupplements' L-Citrulline DL-Malate 1:1 powder, for example, has received a 4.8 out of 5.0 star rating from over 443 reviews, highlighting its popularity among fitness enthusiasts. The company's efficient shipping, with 2-day delivery to 99.4% of the USA, further enhances its customer satisfaction.

NOW Foods

NOW Foods is a leading producer of L-citrulline supplements, known for their high-quality and bioavailable formulations. The company's L-citrulline products are popular among athletes and fitness enthusiasts due to their ability to enhance blood flow, boost nitric oxide production, and improve muscle recovery. With a strong presence in the global market, NOW Foods contributes to the growing demand for L-citrulline, which is expected to drive the market to USD 2,541.98 million by 2032 at a CAGR of 5.2% from 2024 to 2032. The brand's commitment to transparency and quality is evident in their third-party lab-tested products, ensuring consumer trust. In 2023, the global L-citrulline market size was valued at USD 1.613 billion, with North America, led by the U.S., being a prominent region driven by increasing demand for dietary supplements and sports nutrition products.

Pure Encapsulations

Pure Encapsulations is a renowned brand in the health supplement industry, particularly noted for its high-quality L-citrulline products. The company's Nitric Oxide Ultra capsules, for instance, contain 2000mg of free-form L-citrulline per serving, supporting healthy blood flow and vascular health. Pure Encapsulations ensures product purity and potency through rigorous third-party testing and sourcing premium raw materials from trusted suppliers worldwide. Their manufacturing facility is NSF-GMP registered and exceeds the standards of the United States Pharmacopeia, reflecting their commitment to quality. The L-citrulline market, in which Pure Encapsulations is a key player, is expected to grow at a CAGR of 5.0% from 2024 to 2030, driven by increasing consumer demand for nutritional supplements.

Doctor's Best

Doctor's Best is a renowned brand for producing high-quality L-Citrulline powder, known for its science-based nutrition and strict quality standards. Their L-Citrulline powder is non-GMO, gluten-free, soy-free, and vegan, making it accessible to a wide range of consumers. Each serving of 3 grams supports nitric oxide metabolism, vascular health, and muscle recovery, with approximately 66 servings per 7 oz container. The product is free from added or artificial flavors, colors, or preservatives, ensuring a pure and effective supplement. Doctor's Best sources its L-Citrulline from Kyowa Quality, a mark of high standards in amino acid production.

Nutricost

Nutricost is a leading brand in the L-citrulline market, known for its high-quality formulations and transparent manufacturing processes. The company offers L-citrulline products that are non-GMO and gluten-free, catering to the growing demand in the dietary supplement and sports nutrition sectors. With a strong online presence, Nutricost captures a significant market share, particularly through its direct-to-consumer sales strategy and competitive pricing. In 2023, the global L-citrulline market, which includes brands like Nutricost, was valued at USD 1,601.7 million and is expected to grow at a CAGR of 5.0% from 2024 to 2030. Nutricost's commitment to quality assurance and customer satisfaction is evident through its 60-day money-back guarantee.

Kaged Muscle

Kaged Muscle is a leading brand in the production of high-quality L-citrulline supplements, known for its 100% plant-based and vegan-friendly products created through a natural fermentation process. Unlike many brands that source citrulline from animal by-products, Kaged ensures purity and effectiveness, with no synthetic compounds. Their L-citrulline supplements are clinically dosed to enhance nitric oxide production, increase blood flow, and deliver significant muscle pumps and endurance. Notably, Kaged's Pre-Kaged Elite features an industry-leading 10 grams of L-citrulline per serving, backed by research showing improved athletic endurance and reduced muscle soreness. This brand is also Informed-Sport certified, ensuring safety for athletes of all levels.

Jarrow Formulas

Jarrow Formulas is renowned for its high-quality dietary supplements, particularly its Arginine-Citrulline Sustain(tm) product, which combines L-citrulline and L-arginine to support nitric oxide production, blood flow, and cardiovascular health. Founded on a commitment to scientific research and quality, Jarrow Formulas has been a trusted name in the health and wellness industry for over 50 years. Their products are crafted with superior science, ensuring purity and potency in every formulation. The Arginine-Citrulline Sustain(tm) supplement is available in a 120-tablet supply, providing a two-month dosage. This synergistic combination is free from common allergens like wheat, gluten, and soybeans.

Transparent Labs

Transparent Labs stands out as a top producer of L-citrulline supplements, renowned for their science-backed, clinically effective formulas. Their PreSeries PUMP pre-workout contains 8,000 mg of L-citrulline, which is known to significantly increase oxygen uptake and improve vascular function. The company is committed to using 100% authentic ingredients, with full-disclosure product labels and no artificial sweeteners, colors, or fillers. Transparent Labs subjects their products to third-party testing and makes the results publicly available, ensuring transparency and safety. Their products are also vegan and gluten-free, catering to a wide range of dietary needs.

Thorne Research

Thorne Research is renowned for its high-quality L-citrulline supplements, manufactured in laboratories that meet stringent standards set by NSF International and Australia's Therapeutic Goods Administration (TGA). Their products are GMP certified, ensuring purity and potency through rigorous testing methods, including high-performance liquid chromatography and mass spectrometry. Thorne Research's commitment to quality is evident in their zero run failure rate and high accuracy in quality control results. Their supplements are free from common allergens, making them a favorite among healthcare providers. With a strong focus on transparency and third-party testing, Thorne Research stands out as a trusted brand in the nutritional supplement industry. You can explore their offerings on Thorne's official website.

PrimaForce

PrimaForce is a renowned brand in the health and wellness industry, particularly noted for its high-quality L-citrulline products. As a key player in the market, PrimaForce capitalizes on the growing demand for L-citrulline, which is expected to drive the global market to reach USD 2,276.0 million by 2030, growing at a CAGR of 5.0% from 2024 to 2030. The North American market, where PrimaForce operates, generated a revenue of USD 528.5 million in 2023 and is projected to grow at a CAGR of 4.8% until 2030. PrimaForce's products, such as their Nitric Oxide Booster, are popular among athletes and health-conscious consumers for enhancing exercise performance and reducing muscle soreness. The brand's commitment to product innovation and customer satisfaction has made it a favorite among those seeking dietary supplements.