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Recommend a Supplement

In order to help you find a good product, we’ve researched & compared the best glycine supplements on the market right now.

Top 10 Glycine Products Compared

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1. Now Foods Glycine

Now Foods Glycine

Specs and Highlights

  • Glycine per serving: 3000mg
  • Other ingredients: gelatin, magnesium stearate, and silica
  • No wheat, gluten, soy, milk, egg, fish, shellfish or tree nuts
  • This product is for adult use only and should be out of reach from children
  • No GMO and is a vegan product
Where to Get It

2. BulkSupplements Pure Glycine Powder

BulkSupplements Pure Glycine Powder

Specs and Highlights

  • Glycine per serving: 1000mg
  • Other ingredients: none
  • No sugar, soy, yeast, gluten, dairy, or additives
  • No fillers
  • Comes in a factory sealed pouch for freshness
  • Natural antioxidant
Where to Get It

3. Life Extension Glycine

Life Extension Glycine Vegetarian Capsules

Specs and Highlights

  • Glycine per serving: 1000mg
  • Other ingredients: vegetable cellulose and ascorbyl palmitate
  • Take only the recommended dose
  • Consult with your doctor if you’re pregnant, nursing, or undergoing treatment
Where to Get It

4. Thorne Research Glycine

Thorne Research Glycine

Specs and Highlights

  • Glycine per serving: 1g
  • Other ingredients: hypromellose capsule and silicon dioxide
  • No artificial flavors, artificial sweeteners, yeast, magnesium stearate, peanuts, soy, corn, eggs, bonders, dairy, or coatings
Where to Get It

5. Pure Encapsulations Glycine

Pure Encapsulations Glycine

Specs and Highlights

  • Glycine per serving: 1,500mg
  • Other ingredients: hypoallergenic plant fiber, ascorbyl palmitate, vegetarian capsule
  • Hypoallergenic
  • Vegan ingredients
  • No wheat, gluten, soy, dairy, shellfish, eggs, peanuts, GMO, trans fat, hydrogenated oils, artificial flavors or colors
Where to Get It

6. Solgar GlycineSolgar Glycine

Specs and Highlights

  • Glycine per serving: 500mg
  • Vegetarian and Vegan-friendly
  • Store product in a cool, dry place
  • This is a dietary supplement for adults only
  • Detoxifies the body
Where to Get It

7. Source Naturals Glycine

Source Naturals Glycine

Specs and Highlights

  • Glycine per serving: 1g
  • Other ingredients: gelatin, microcrystalline cellulose, colloidal silicon dioxide, and magnesium stearate
  • Also, includes herbs and other nutrients in its formula
  • NO yeast, dairy, egg, gluten, corn, soy, wheat, sugar, starch, salt, preservatives or fragrances
Where to Get It

8. Best Naturals Glycine

Best Naturals Glycine

Specs and Highlights

  • Glycine per serving: 1g
  • Other ingredients: gelatin, silica, vegetable stearate
  • Central for RNA and DNA
  • No sugar, starch, corn, lactose, egg, wheat, sodium, or yeast
Where to Get It

9. Douglas Laboratories Glycine

Douglas Laboratories Glycine

This capsule should only be taken once daily and as directed by your doctor.

Specs and Highlights

  • Glycine per serving: 500mg
  • Other ingredients: gelatin, cellulose, and vegetable stearate
  • No yeast, wheat, gluten, soy, milk, corn, sodium, sugar, preservatives, or starch
  • Keep this product away from the light and store in a cool, dry place
  • This should only be taken by adults
  • Take only one capsule a day unless directed otherwise by your doctor
Where to Get It

10. Pure Encapsulations – Pure Tranquility Liquid

Pure Encapsulations Pure Tranquility Liquid

Specs and Highlights

  • Glycine per serving: 50mg
  • Other ingredients: water, natural vegetable glycerin, can sugar, natural apple flavor, citric acid, potassium sorbate, purified stevia extract
  • Hypoallergenic, vegetarian, No GMO
  • Freeform glycine
  • Comes with a 4 ml dropper to dispense the product
Where to Get It

Frequently Asked Questions About Glycine Supplements

What is Glycine?

Glycine is produced that is naturally in the liver and is necessary for the central nervous system. Glycine supplements are known for their wide range of positive uses.

Colorless in form, sweet in taste, glycine is the simplest form of amino acids that is produced naturally in the body. Glycine is also found in meat, fish, vegetables, and fruits like spinach, pumpkin, kale, and beans, dairy products and other foods high in protein. Even though glycine is available in some foods, the amount of glycine provided in foods is not enough. This is why glycine supplements are available.

Even though glycine is primarily marketed as a supplement for restlessness and issues with relaxation, there are several benefits to glycine.

This is true for glycine that is taken under the care of a licensed physician. The supplement is relatively safe but should not be taken by children, women who are pregnant or nursing, or people with preexisting conditions. Some side effects of glycine supplements may include vomiting, nausea and upset stomach. It is always a good idea to discuss your options with your physician concerning use of glycine.

How Do I Take Glycine?

Any glycine supplement should always be taken as recommended on the bottle and as noted by the physician. The lowest dosage of glycine is approximately one to three grams daily. It is recommended that glycine supplements are taken before bedtime.

This will allow the supplement to work while you’re sleeping as well as assist with feeling awake and refreshed each day. It is not recommended that you take glycine if you have diarrhea.

Consult with your doctor before the use of any supplement, including glycine products. Express to your doctor all medications, both prescription and over the counter, that you are currently taken so that the right glycine supplement and dosage can be decided for you.

How Do I Pick a Good Glycine Product?

Not all glycine supplements are the same or made with the same ingredients. Always look for brands and products that are high in quality and sold by companies that are trustworthy.

It should not be used as your main source for glycine but as a supplemental product in addition to a healthy diet centered on protein. Look for a glycine supplement that has at least 1000mg per serving, which is the equivalent of one gram. Best results may come from glycine products that have minimal risks associated with dosage and use.

Keep in mind that results vary by person and could take longer to see depending on genetic makeup and body type.

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