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METHIONINE

notesDescription

Methionine is one of the nine essential amino acids, meaning it must be obtained through diet as the human body cannot produce it. As a sulfur-containing amino acid, it is fundamental for various sulfur-dependent metabolic processes, including detoxification pathways and maintaining the structural integrity of hair, skin, and nails. It also serves as a direct precursor to Cysteine and Taurine, contributing significantly to the body's antioxidant defenses and bile acid synthesis. Beyond its role in sulfur metabolism, Methionine is indispensable for initiating protein synthesis and acts as a primary methyl donor in countless biochemical reactions throughout the body. Its conversion to S-adenosylmethionine (SAMe) is particularly important for supporting neurological function, mood regulation, and liver health by facilitating methylation processes critical for cellular function and neurotransmitter production. Furthermore, Methionine contributes to the synthesis of L-Carnitine and Creatine, both essential for energy metabolism. It helps prevent fat buildup in the liver and supports a robust immune system. These diverse functions underscore Methionine's broad importance for overall physiological health and well-being.

ecoSources
Meat (beef, poultry, pork)Fish (salmon, tuna)EggsDairy products (milk, cheese)Nuts (Brazil nuts, almonds)Seeds (sesame seeds)Legumes (soybeans)Grains (oats, quinoa)
Cheapest Methionine supplements
Discover the most affordable Methionine supplements, an essential amino acid, to support your hair and nail health goals without breaking the bank.
Best Methionine supplements
Discover the best Methionine supplements for promoting optimal hair and nail health.
Value Methionine supplements
Discover the best Methionine supplements for promoting hair and nail health, comparing their key features and benefits to help you make an informed choice.
check_circleOptimal Dosage
Minimum500 mg
Maximum1500 mg
report_problemSafety & Toxicity
Toxicity Threshold5000 mg
Toxicity EffectElevated homocysteine; cardiovascular risk
track_changesGoals
Hair Health
content_cutHair Health
Impact
High effect
Typical dose:500–1000 mg
As a precursor to Cysteine, Methionine is a critical building block for keratin, the primary protein in hair. It supplies the sulfur necessary for strong disulfide bonds within the hair shaft, contributing to hair thickness and resilience against breakage.
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Nail Health
styleNail Health
Impact
High effect
The body requires methionine to produce cysteine, another sulfur-rich amino acid critical for forming the strong disulfide bonds that give keratin its rigidity and resilience. Supplementing with methionine ensures the foundational elements for robust keratin synthesis are available.
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sync_altInteractions

add_circle_outlinePositive Interactions

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Folate
Folate is an essential cofactor in the methionine cycle, helping to metabolize homocysteine back into methionine, thus maintaining healthy homocysteine levels.
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Vitamin B12
Vitamin B12 is crucial for the methionine cycle, facilitating the remethylation of homocysteine to methionine and supporting healthy homocysteine levels.
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Vitamin B6
Vitamin B6 is essential for the transsulfuration pathway, which converts methionine to cysteine, a precursor for glutathione, boosting antioxidant capacity.
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Choline
Choline, often converted to betaine, participates in the remethylation of homocysteine to methionine, thereby supporting the methionine cycle and reducing homocysteine.
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Betaine Anhydrous
Betaine Anhydrous directly contributes to the remethylation of homocysteine back to methionine, supporting healthy homocysteine levels and the methionine cycle.
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Cysteine
Methionine is a precursor to Cysteine, and supplementing both can enhance the body's synthesis of glutathione, a powerful antioxidant.
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Glutathione
Methionine supports the body's natural production of Glutathione by serving as a precursor to Cysteine, a key component of Glutathione.
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Gluthathione
Methionine supports the body's natural production of Gluthathione by serving as a precursor to Cysteine, a key component of Gluthathione.
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Sulfur
As a sulfur-containing amino acid, Methionine contributes to the body's overall sulfur pool, which is essential for various biological functions, making their roles complementary.
inventory_2Recommended products
85 Best Pharmaceutical Grade AjiPure L-Methionine 500 mg

Pharmaceutical Grade AjiPure L-Methionine 500 mg

Swanson Ultra
4.7
★★★★★
(497 ratings)
METHIONINE: 500 mg
A simple and affordable L-Methionine supplement, potentially beneficial for those seeking to support healthy hair and nails with a recognized quality ingredient.
Buy for $10.19(from iHerb)
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72 Budget Fat Burner Comprehensive Formula

Fat Burner Comprehensive Formula

Swanson
4.4
★★★★★
(2076 ratings)
METHIONINE: 133 mg
This formula provides a blend of ingredients like Garcinia cambogia and Chromium Picolinate, along with lipotropic compounds, to support metabolism and weight management.
Buy for $9.59(from iHerb)
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85 Value Amino-9 Essentials Powder

Amino-9 Essentials Powder

NOW Sports
4.4
★★★★★
(1471 ratings)
METHIONINE: 432 mg
This powder delivers all nine essential amino acids, making it a versatile supplement for daily support of muscle, energy, and overall bodily functions.
Buy for $25.69(from Vitacost)
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78 Budget Ultra Collagen with Horsetail Concentrate

Ultra Collagen with Horsetail Concentrate

Mason Natural
4.5
★★★★★
(371 ratings)
METHIONINE: 25 mg
This supplement offers a combination of collagen, biotin, horsetail, and various minerals and vitamins, targeting comprehensive support for hair, skin, nails, and bone/joint health.
Buy for $15.58(from Walmart)
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88 Best L-Methionine 500 mg

L-Methionine 500 mg

Solgar
4.7
★★★★★
(913 ratings)
METHIONINE: 500 mg
A popular and well-priced L-Methionine supplement from a trusted brand, providing a standard 500mg dose for hair and nail support.
Buy for $15.69(from Vitacost)
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82 Value Lipotropic Complex

Lipotropic Complex

Integrative Therapeutics
4.7
★★★★★
(24 ratings)
METHIONINE: 333 mg
This Lipotropic Complex provides a comprehensive blend of B vitamins, lipotropic factors, and herbal extracts to support liver function, fat metabolism, and detoxification pathways.
Buy for $28.25(from Pure Formulas)
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60 Best L-Methionine

L-Methionine

Douglas Laboratories
5.0
★★★★★
(2 ratings)
METHIONINE: 500 mg
A 500mg L-Methionine supplement from a brand often associated with professional distribution, but it comes at a premium price with very few customer reviews.
Buy for $29.5(from Pure Formulas)
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72 Best L-Methionine

L-Methionine

Allergy Research Group
4.4
★★★★★
(5 ratings)
METHIONINE: 500 mg
This L-Methionine supplement offers a standard 500mg dose, likely appealing to those seeking products from brands attentive to sensitivities, but at a higher price point with few reviews.
Buy for $28.29(from Vitacost)
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75 Best L-Methionine

L-Methionine

NutriCology
4.7
★★★★★
(563 ratings)
METHIONINE: 500 mg
A solid 500mg L-Methionine supplement with a good number of reviews, though it's positioned at a mid-to-high price point for a single amino acid.
Buy for $28.29(from Pure Formulas)
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82 Value Liver Support Factors

Liver Support Factors

Country Life
4.7
★★★★★
(288 ratings)
METHIONINE: 400 mg
This product offers a cost-effective blend of choline, a substantial dose of methionine, and foundational botanical extracts for liver support.
Buy for $30.44(from iHerb)
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83 Budget Essential Aminos

Essential Aminos

Pure Encapsulations
4.9
★★★★★
(22 ratings)
METHIONINE: 70 mg
This product offers all nine essential amino acids in capsule form, supporting fundamental bodily functions and overall protein synthesis for general well-being.
Buy for $55(from Pure Formulas)
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50 Budget Lipotrope

Lipotrope

Progressive Professional from Progressive Laboratories
5.0
★★★★★
(4 ratings)
METHIONINE: 50 mg
This supplement combines various lipotropic agents and B vitamins with a small amount of L-Methionine, primarily aimed at supporting metabolic and liver functions rather than direct hair and nail improvements.
Buy for $29(from Pure Formulas)
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70 Value L-Methionine 500 mg

L-Methionine 500 mg

Metabolic Maintenance
4.7
★★★★★
(61 ratings)
METHIONINE: 500 mg
A professional-grade 500mg L-Methionine supplement, offering a pure source but at a higher price compared to general market alternatives.
Buy for $35.8(from iHerb)
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72 Best MacroMeal Ultimate Chocolate Protein Powder

MacroMeal Ultimate Chocolate Protein Powder

MacroLife Naturals
4.4
★★★★★
(19 ratings)
METHIONINE: 553 mg
This is a multi-source protein powder enhanced with greens, digestive enzymes, and probiotics, aiming for broad nutritional support in a convenient chocolate-flavored drink.
Buy for $29.99(from iHerb)
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78 Best MacroMeal Ultimate Vanilla Protein Powder

MacroMeal Ultimate Vanilla Protein Powder

MacroLife Naturals
3.9
★★★★★
(8 ratings)
METHIONINE: 535 mg
MacroMeal Ultimate Vanilla is a multi-source protein powder packed with greens, fruits, enzymes, and probiotics, designed for broad nutritional support and muscle maintenance.
Buy for $29.99(from iHerb)
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68 Best MacroMeal Ultimate Vanilla Protein Powder

MacroMeal Ultimate Vanilla Protein Powder

MacroLife Naturals
4.1
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(32 ratings)
METHIONINE: 530 mg
A plant-based protein powder with added superfoods, digestive enzymes, and probiotics, delivering comprehensive nutritional support in a vanilla flavor.
Buy for $50(from iHerb)
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65 Best MacroMeal Ultimate Vanilla Protein Powder

MacroMeal Ultimate Vanilla Protein Powder

MacroLife Naturals
4.5
★★★★★
(22 ratings)
METHIONINE: 530 mg
This is a plant-based, multi-ingredient protein powder with superfoods and digestive support, available in a smaller, more expensive-per-serving vanilla package.
Buy for $44(from iHerb)
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77 Best MacroMeal Ultimate Chocolate Protein Powder

MacroMeal Ultimate Chocolate Protein Powder

MacroLife Naturals
4.5
★★★★★
(8 ratings)
METHIONINE: 553 mg
MacroMeal Ultimate Chocolate is a comprehensive protein powder with added greens, fruits, enzymes, and probiotics, aiming for broad nutritional support and muscle upkeep in a chocolate flavor.
Buy for $28.99(from iHerb)
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68 Value L-Methionine

L-Methionine

Pure Encapsulations
4.8
★★★★★
(5 ratings)
METHIONINE: 375 mg
A pure L-Methionine supplement at 375mg from a reputable professional-grade brand, offered at a somewhat higher price for its dose.
Buy for $21(from Pure Formulas)
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91 Budget Advanced Liver Support

Advanced Liver Support

Super Nutrition
4.8
★★★★★
(3852 ratings)
METHIONINE: 20 mg
Super Nutrition's Advanced Liver Support offers a comprehensive blend of milk thistle, glutathione precursors, various antioxidants, and botanicals, featuring strong dosages of key ingredients at a very competitive price.
Buy for $8(from Daily Vita)
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70 Budget Free Radical Quenchers

Free Radical Quenchers

Ecological Formulas
5.0
★★★★★
(3 ratings)
METHIONINE: 40 mg
This supplement offers a diverse mix of antioxidants and amino acids for general cellular and overall wellness support in a convenient capsule form.
Buy for $12.76(from Pure Formulas)
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analyticsProduct stats
sellPrice per product
Average$39.40
Median$32.59
restaurantPrice per serving
Average$1.28
Median$0.96
sciencePrice per 100 mg
Average$1.37
Median$1.02
bar_chartPrice distribution
bar_chartPrice per serving distribution
bar_chartPrice per 100 mg
Reference amount: 100 mg
categoryForms
bar_chartPaired ingredients
water_dropIngredient forms
category DL-Methionine (1) 80
L-Methionine is an essential amino acid, meaning the body cannot produce it and it must be obtained through diet or supplements. It is a crucial precursor to cysteine, another amino acid, which is a major building block of keratin. Keratin is the primary structural protein found in hair and nails. By supporting keratin synthesis, L-Methionine contributes to the strength, elasticity, and healthy growth of hair and nails. It also plays a role in collagen synthesis and serves as an antioxidant.
thumb_upPros
  • Essential for keratin synthesis, crucial for hair and nail structure
  • Supports healthy hair growth and strength
  • Contributes to nail integrity and may reduce brittleness
  • Involved in collagen production
thumb_downCons
  • High doses may potentially impact homocysteine levels (often mitigated by adequate B vitamins)
  • Can have a sulfurous odor in some supplements
  • May cause mild digestive upset in sensitive individuals at high doses
sellPer product
Avg$57.00
Med$57.00
restaurantPer serving
Avg$0.68
Med$0.68
science Per 10 mg
Avg$0.14
Med$0.14
Price distribution
category L-Methionine (1) 80
L-Methionine is an essential amino acid, meaning the body cannot produce it and it must be obtained through diet or supplements. It is a crucial precursor to cysteine, another amino acid, which is a major building block of keratin. Keratin is the primary structural protein found in hair and nails. By supporting keratin synthesis, L-Methionine contributes to the strength, elasticity, and healthy growth of hair and nails. It also plays a role in collagen synthesis and serves as an antioxidant.
thumb_upPros
  • Essential for keratin synthesis, crucial for hair and nail structure
  • Supports healthy hair growth and strength
  • Contributes to nail integrity and may reduce brittleness
  • Involved in collagen production
thumb_downCons
  • High doses may potentially impact homocysteine levels (often mitigated by adequate B vitamins)
  • Can have a sulfurous odor in some supplements
  • May cause mild digestive upset in sensitive individuals at high doses
sellPer product
Avg$16.77
Med$16.77
restaurantPer serving
Avg$0.37
Med$0.37
science Per 100 mg
Avg$0.37
Med$0.37
Price distribution

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