Supplements (89) for Glycine


Glycine is the simplest amino acid, serving as a building block for protein synthesis and the production of compounds like glutathione and creatine. It also acts as a neurotransmitter and supports sleep quality, collagen formation, metabolic health, and detoxification.

Good for
Anti-AgingHigh effectFundamental for producing both collagen and glutathione—the body's master antioxidant. Its proven ability to enhance sleep quality provides a powerful, indirect anti-aging effect via improved nightly repair.Anti-Inflammatory SupportHigh effectAn amino acid that directly inhibits pro-inflammatory cytokine production and protects cells from oxidative stress.Bone HealthHigh effectThe most abundant amino acid in collagen, essential for building the bone's protein matrix.DetoxificationHigh effectActs as a building block for glutathione and is used directly in a major Phase II detoxification pathway called glycination.Digestive HealthHigh effectA key amino acid for rebuilding the gut lining and reducing inflammation.General HealthHigh effectSupports sleep quality, calms the nervous system, and is a key building block for collagen and glutathione.Skin HealthHigh effectProvides the most abundant amino acid building block for collagen, supporting skin structure and repair.Sleep SupportHigh effectSmall studies suggest possible benefits for perceived sleep quality and next-day fatigue; the evidence is preliminary.Stress ReliefHigh effectAn inhibitory amino acid that promotes relaxation and is highly effective for improving sleep quality disrupted by stress.Mood SupportSituational effectAn inhibitory neurotransmitter that promotes calmness and improves sleep quality, which is fundamentally linked to mood regulation.
Across 90 Glycine products
Optimal dose1000 mg – 3000 mg
Price$29.22median
Price per serving$0.59median
Price per 100 mg$0.25median
Dose per serving250 mgmedian
Top forms Magnesium Glycinate 1
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84
Glycine 1000 mg, 100 Capsule(s) Life Extension
4.8
★ ★ ★ ★ ★
(15892 ratings)
Glycine: 1000 mg
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83
+10
Sleep Nighttime Powder, 6 Liquid(s) youtheory
4.2
★ ★ ★ ★ ★
(1945 ratings)
Glycine: 3000 mg
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83
Pharmaceutical Grade AjiPure Glycine 500 mg, 60 Capsule(s) Swanson Ultra
4.8
★ ★ ★ ★ ★
(3654 ratings)
Glycine: 500 mg
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82
+3
Glycine: 1440 mg
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85
Glycine Powder, 200 Gram(s) Metabolic Maintenance
4.8
★ ★ ★ ★ ★
(267 ratings)
Glycine: 1000 mg
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80
Glycine 500 mg, 100 Tablet(s) Country Life
4.9
★ ★ ★ ★ ★
(3588 ratings)
Glycine: 500 mg
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80
Glycine 500 mg, 100 Capsule(s) Solgar
4.8
★ ★ ★ ★ ★
(2972 ratings)
Glycine: 500 mg
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82
+1
Sleep Nighttime Powder, 21 Packet(s) youtheory
4.4
★ ★ ★ ★ ★
(42 ratings)
Glycine: 3000 mg
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77
R.E.M. Maintenance, 360 Gram(s) Metabolic Maintenance
4.3
★ ★ ★ ★ ★
(46 ratings)
Glycine: 3500 mg
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77
True Calm, 90 Capsule(s) NOW
4.6
★ ★ ★ ★ ★
(4662 ratings)
Glycine: 200 mg
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78
Glycine, 180 Capsule(s) Pure Encapsulations
4.7
★ ★ ★ ★ ★
(32 ratings)
Glycine: 1500 mg
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74
NightRest With Melatonin, 50 Tablet(s) Source Naturals
4.5
★ ★ ★ ★ ★
(5467 ratings)
Glycine: 250 mg
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79
Melatonin 2 mg, 180 Capsule(s) Metabolic Maintenance
4.6
★ ★ ★ ★ ★
(98 ratings)
Glycine: 210 mg
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78
+12
Vitamin/Mineral Base Powder, 312 Gram(s) Metabolic Maintenance
4.5
★ ★ ★ ★ ★
(92 ratings)
Glycine: 1100 mg
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81
DGL Deglycyrrhizinated Licorice Root Extract, 180 Tablet(s) Swanson Superior Herbs
4.6
★ ★ ★ ★ ★
(2424 ratings)
Glycine: 100 mg
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78
GABAplex, 60 Capsule(s) Swanson
4.7
★ ★ ★ ★ ★
(191 ratings)
Glycine: 250 mg
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81
Double Strength 5-HTP 200 mg, 60 Capsule(s) NOW
4.8
★ ★ ★ ★ ★
(17043 ratings)
Glycine: 100 mg
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77
5-HTP 100 mg, 120 Capsule(s) Metabolic Maintenance
4.7
★ ★ ★ ★ ★
(256 ratings)
Glycine: 300 mg
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78
Double Strength 5-HTP 200 mg, 120 Capsule(s) NOW
4.8
★ ★ ★ ★ ★
(18265 ratings)
Glycine: 100 mg
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70
Pegan Thin Seed Protein 20 g Triple Chocolate, 2 Pound(s) Julian Bakery
4.5
★ ★ ★ ★ ★
(67 ratings)
Glycine: 2360 mg
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