Top Glycine Brands to Elevate Your Health Game

In the ever-evolving world of dietary supplements, finding the best brands for glycine can be a daunting task. Glycine, an amino acid with numerous health benefits, has gained popularity for its roles in promoting better sleep, supporting joint health, and enhancing neurological function. With a myriad of options available on the market, it’s essential to identify brands that prioritize quality and purity. In the upcoming sections, we present a comprehensive list of top-rated glycine brands, ensuring you have the information needed to make an informed choice.

Illustration of glycine

Best brands of glycine in 2025

Now Foods

NOW Foods is a renowned brand in the supplement industry, particularly noted for its high-quality glycine products. Glycine from NOW Foods is a non-essential amino acid that supports energy production, promotes restful sleep, and provides nervous system support. The glycine powder by NOW Foods is pharmaceutical grade, vegetarian, and vegan-friendly, with no added preservatives or common allergens. The global glycine supplement market, which includes NOW Foods as a major player, is expected to grow at a CAGR of 5.75% from 2021 to 2028, reaching a market size of USD 736.98 million by 2028. NOW Foods' glycine supplement is available in a 1-pound container, providing 151 servings.

Pure Encapsulations

Pure Encapsulations is a renowned brand for producing high-quality glycine supplements, formulated with pure, hypoallergenic, and vegan ingredients, free from artificial additives, GMOs, and common allergens. With over 30 years of research and innovation, Pure Encapsulations ensures its products are backed by verifiable science. Their glycine supplements support healthy kidney and liver function, promote nervous system health, and may enhance memory and mental function. Each serving typically contains 500-1500 mg of free-form glycine, taken 1-2 times daily between meals. This brand is trusted for its commitment to quality and purity. For more information, visit their website for glycine supplements.

Thorne Research

Thorne Research is renowned for producing high-quality glycine supplements, leveraging rigorous science testing and strict manufacturing standards to ensure the highest efficacy and safety. Their glycine supplements are gluten-free, soy-free, and dairy-free, making them suitable for a wide range of consumers. Thorne's commitment to quality is evident in their four rounds of testing for every supplement, ensuring purity and potency from raw materials to finished products. The company's manufacturing facility, certified by NSF and Australia's Therapeutic Goods Administration (TGA), underscores their adherence to global Good Manufacturing Practices (GMP) standards. With over 65,000 hours dedicated annually to employee training, Thorne sets a benchmark for excellence in the supplement industry.

BulkSupplements

BulkSupplements is a highly regarded brand for glycine supplements, known for its high-quality, gluten-free, and additive-free products. They offer glycine in both capsule and powder forms, with each serving size carefully calibrated, such as 3 capsules or 1000 mg per serving. The company ensures transparency by providing certificates of analysis for their products, which are manufactured in NSF certified and GMP facilities in the USA. BulkSupplements also boasts a reliable delivery system, with 2-day delivery to 99.4% of the USA and international delivery times ranging from 4-10 days. Their products are frequently praised for their effectiveness in supporting muscle growth, detoxification, and gut health.

Designs for Health

Designs for Health is a renowned brand in the nutritional supplement industry, particularly noted for its high-quality glycine powder. This product offers 3 grams of pure glycine per serving, which is crucial for structural protein synthesis, detoxification pathways, neurotransmitter function, and maintaining healthy connective tissues like skin, bones, and cartilage. Glycine, a conditionally essential amino acid, makes up over one third of the total amino acids in collagen. The glycine powder is manufactured in a GMP-registered facility in the USA, ensuring strict standards for purity and potency. With over 35 years of experience in functional medicine, Designs for Health is trusted by healthcare practitioners worldwide.

Jarrow Formulas

Jarrow Formulas, although not specifically highlighted as a producer of glycine, is renowned for its high-quality dietary supplements, including probiotics and other health products. The company has been a probiotic pioneer for over 30 years, introducing multi-strain formulas and pre-release testing since 1986. In 2019, Jarrow Formulas was selected as the #1 Probiotics Brand for customer satisfaction by ConsumerLab.com, based on 10,931 responses from subscribers. While their product range is extensive, it does not specifically include glycine, but their commitment to science-based and clinically documented strains is noteworthy. Jarrow Formulas has had over 20 of its products tested and approved by ConsumerLab.com.

Doctor's Best

Doctor's Best is renowned for its high-quality supplements, including those that utilize glycine for enhanced bioavailability. Their High Absorption Magnesium, for example, uses a patented, organic, chelated delivery form that includes glycine to optimize magnesium absorption, making it more absorbable than magnesium oxide. This formulation supports bone density, muscle relaxation, and overall cardiovascular health, addressing the magnesium deficiency found in up to 75% of Americans. The product is vegan, non-GMO, gluten-free, and soy-free, ensuring a clean and reliable supplement. Doctor's Best commitment to purity and bioavailability makes it a trusted choice for those seeking effective glycine-containing supplements.

Solaray

Solaray is renowned as one of the best producers of glycine supplements, offering high-quality products that support muscle metabolism, protein synthesis, and overall health. Their glycine supplements, such as the Free Form 1000mg, are designed to enhance muscle function and recovery, with glycine playing a crucial role in activating anabolic pathways and inhibiting proteolytic gene expression. Solaray's formulations often include additional ingredients like Bioperine(r) to enhance bioavailability, ensuring maximum absorption and effectiveness. Glycine from Solaray also contributes to improved sleep quality, as seen in their Extended Release Melatonin w/Glycine product. With a focus on higher absorption and fully-reacted chelated formulas, Solaray stands out in the health supplement market.

Life Extension

Life Extension is a renowned brand for glycine supplements, offering high-dose 1000 mg capsules that promote healthy sleep, relaxation, and support connective tissue health. Their glycine supplements are designed to provide optimal benefits, with recommended intakes of one to three grams per day, which have been shown to be safe and effective. Glycine from Life Extension also supports healthy glucose and fructose metabolism, inhibits protein glycation, and may help maintain normal blood pressure. Studies have correlated higher glycine levels with cardiovascular protection and better metabolic health. The supplements are vegetarian, non-GMO, and gluten-free, ensuring they cater to a wide range of dietary needs. For more details, visit the Life Extension glycine supplement page.

Solgar

Solgar is renowned as one of the best producers of glycine supplements, offering high-quality formulations that promote optimal absorption and assimilation. With over 75 years of commitment to quality, health, and well-being, Solgar ensures its glycine products are free from gluten, wheat, and dairy, making them suitable for vegetarians and those with dietary restrictions. Each serving of Solgar Glycine provides 500 mg of free-form L-Glycine, which is essential for protein formation and cellular protection. Their patented blend of Glycine and N-Acetyl Cysteine (GlyNAC) in products like Cellular Protect supports glutathione production, a crucial antioxidant for cellular health. Solgar's dedication to producing supplements in small batches guarantees the finest nutritional quality.