2026年 April

10 Best amino acids in 日本

Last Updated - 02/04/2026

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Best Choice
01

REYS

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On Amazon

REYS Rays EAA, Developed Under Supervision of Yamazawa Tadaaki, Contains 9 Essential Amino Acids, 600g Nutritional Functional Food, Powder, Beta Alanine, Contains 3 Types of Vitamin B Complex in One
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

✅【How to Consume】Dissolve approximately 1 scoop (provided spoon) in 10.1 - 13.5 fl oz (300 - 400 ml) of cold water or similar beverage and drink Recommended Intake Timing: As a workout drink during training/In the morning
✅REYS EAA is supervised by Yamazawa Tadaaki, who has over 1 million YouTube subscribers Contains all 9 types of essential amino acids that the body cannot produce out of 20 types of amino acids Support your training to the next level with EAA, which includes beta-alanine and a daily dose of 3 kinds of vitamin B
✅REYS EAA is a food with nutritional functions ● Vitamin B1 is a nutrient that helps with energy production from carbohydrates and maintaining the health of the skin and mucous membranes ● Vitamin B2 is a nutrient that helps maintain the health of the skin and mucous membranes ● Vitamin B6 is a nutrient that helps in the production of energy from proteins and in maintaining the health of the skin and mucous membranes
✅EAA 8,000 mg included | Leucine 2,400 mg, Isoleucine 1,200 mg, Valine 1,200 mg, Threonine 640 mg, Lysine 1,360 mg, Methionine 280 mg, Histidine 280 mg, Phenylalanine 560 mg, Tryptophan 80 mg per serving (12 g) | Additionally includes β-Alanine 800 mg and a daily dose of Vitamin B1, Vitamin B2, and Vitamin B6
✅98% responded that it is delicious! REYS EAA has pursued deliciousness to the utmost extent With REYS's unique formulation, we have created a delicious EAA that suppresses the bitterness and smell of amino acids, allowing you to drink it like juice!

￥4,644
02

REYS

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On Amazon

REYS Rays EAA, Developed Under Supervision of Yamazawa Tadaaki, Contains 9 Essential Amino Acids, 600g Nutritional Functional Food, Powder, Beta Alanine, Contains 3 Types of Vitamin B Complex in One
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

✅【How to Consume】Dissolve approximately 1 scoop (provided spoon) in 10.1 - 13.5 fl oz (300 - 400 ml) of cold water or similar beverage and drink Recommended Intake Timing: As a workout drink during training/In the morning
✅REYS EAA is supervised by Yamazawa Tadaaki, who has over 1 million YouTube subscribers Contains all 9 types of essential amino acids that the body cannot produce out of 20 types of amino acids Support your training to the next level with EAA, which includes beta-alanine and a daily dose of 3 kinds of vitamin B
✅REYS EAA is a food with nutritional functions ● Vitamin B1 is a nutrient that helps with energy production from carbohydrates and maintaining the health of the skin and mucous membranes ● Vitamin B2 is a nutrient that helps maintain the health of the skin and mucous membranes ● Vitamin B6 is a nutrient that helps in the production of energy from proteins and in maintaining the health of the skin and mucous membranes
✅EAA 8,000 mg included | Leucine 2,400 mg, Isoleucine 1,200 mg, Valine 1,200 mg, Threonine 640 mg, Lysine 1,360 mg, Methionine 280 mg, Histidine 280 mg, Phenylalanine 560 mg, Tryptophan 80 mg per serving (12 g) | Additionally includes β-Alanine 800 mg and a daily dose of Vitamin B1, Vitamin B2, and Vitamin B6
✅98% responded that it is delicious! REYS EAA has pursued deliciousness to the utmost extent With REYS's unique formulation, we have created a delicious EAA that suppresses the bitterness and smell of amino acids, allowing you to drink it like juice!

￥4,412 ￥4,644
03

Amino Vital

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Amino Vital Ajinomoto Gold Grapefruit Flavor Powder, 30 Packets, Amino Acids, 4,000 mg BCAA EAA Conditioning
9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

【Usage Scene 1】Supports recovery in all sports such as marathons, cycling, running, swimming, soccer, baseball, volleyball, basketball, tennis, badminton, etc
【Ingredients per stick】 EAA: 4000 mg, BCAA: 2470 mg (Leucine 1600 mg, Isoleucine 430 mg, Valine: 440 mg, other essential amino acids 1540 mg)
【How to drink】Since it is a granule type, you can drink it directly with water or sports drinks, and there is no need for measuring or shaking A refreshing grapefruit flavor with a clean taste, suppressing the bitterness unique to amino acids
【Features】The amino acids, which are the ingredients of protein, are quickly absorbed into the body A small amount is sufficient, so it won't weigh you down, allowing you to enjoy exercise and meals
This sports supplement contains a blend of 4000 mg of all 9 essential amino acids (EAA) Supports muscle recovery after hard exercise, training, and muscle training by replenishing it
Applications 2: Perfect for conditioning outdoor activities such as golf, climbing, hiking, walking, music festivals, etc
30 pack makes it easy to stock and carry around at home
(Scene 3) Perfect for those who want to build their muscles during exercise and muscle training at the gym or at home, or for those working out for body building or dieting

￥4,173
04

WELLBODY

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On Amazon

Power Production Extra Amino Acid 180 Tablets (Approx. 45-Day Supply) WELLBODY Amino Acids Arginine Ornithine for Recovery After Hard Work Nutritional Functional Food [Amazon.co.jp Exclusive]
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Product size (Width x Depth x Height): 5.0 x 8.7 x 1.2 inches (128 x 220 x 30 mm)
How to Use: Take approximately 4 tablets a day with water or other beverages
Features: Contains amino acids (arginine, ornithine, lysine) that you want to take during rest, vitamin B6, zinc, magnesium, selenium, herbs (Kanka), glycogen, etc Suitable for recovery after hard work
Contents: 180 tablets

￥3,568 ￥3,889
Best Value
05

WELLBODY
17% Off

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On Amazon

Power Production Extra Amino Acid 180 Tablets (Approx. 45-Day Supply) WELLBODY Amino Acids Arginine Ornithine for Recovery After Hard Work Nutritional Functional Food [Amazon.co.jp Exclusive]
9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Product size (Width x Depth x Height): 5.0 x 8.7 x 1.2 inches (128 x 220 x 30 mm)
How to Use: Take approximately 4 tablets a day with water or other beverages
Features: Contains amino acids (arginine, ornithine, lysine) that you want to take during rest, vitamin B6, zinc, magnesium, selenium, herbs (Kanka), glycogen, etc Suitable for recovery after hard work
Contents: 180 tablets

￥3,211 ￥3,889 17% Off
06

Amino Vital

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On Amazon

Amino Vital Ajinomoto Citric Acid Charge Water, Lemon Flavor, 24-bottle box, Citric Acid 4,500 mg, Amino Acid 1,500 mg, BCAA, Sports Drink, Powder, Easy to Dissolve in Water
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

【Usage Scene 1】Supports recovery in all sports such as marathons, cycling, running, swimming, soccer, baseball, volleyball, basketball, tennis, badminton, etc
Applications 2: Perfect for conditioning outdoor activities such as golf, climbing, hiking, walking, music festivals, etc
AminoVital is a sports drink type supplement that contains essential amino acids (high leucine BCAA + glutamine + arginine) 1500 mg and citric acid 4500 mg, which is the source of energy. It can be dissolved in water and consumed
A refreshing lemon flavor that you can drink easily even during exercise As it is a drink type, it allows you to easily replenish nutrients along with water
(How to Drink) Dissolve 16.9 fl oz (500 ml) of water and drink during training

￥1,882
07

Amino Vital

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On Amazon

Amino Vital Ajinomoto Citric Acid Charge Water, Lemon Flavor, 24-bottle box, Citric Acid 4,500 mg, Amino Acid 1,500 mg, BCAA, Sports Drink, Powder, Easy to Dissolve in Water
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

【Usage Scene 1】Supports recovery in all sports such as marathons, cycling, running, swimming, soccer, baseball, volleyball, basketball, tennis, badminton, etc
Applications 2: Perfect for conditioning outdoor activities such as golf, climbing, hiking, walking, music festivals, etc
AminoVital is a sports drink type supplement that contains essential amino acids (high leucine BCAA + glutamine + arginine) 1500 mg and citric acid 4500 mg, which is the source of energy. It can be dissolved in water and consumed
A refreshing lemon flavor that you can drink easily even during exercise As it is a drink type, it allows you to easily replenish nutrients along with water
(How to Drink) Dissolve 16.9 fl oz (500 ml) of water and drink during training

￥1,788 ￥1,882
08

ディアナチュラ
36% Off

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On Amazon

Dear-Natura Strong 39 Amino Multivitamin & Mineral, 300 Tablets (100 Day Supply), Asahi Supplement, Made in Japan Factories
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Pellets
Package Size: 4.4 x 2.3 x 2.3 inches (113.0 x 58.0 x 58.0
Original Country: Japan
Ingredients: Dextrin, Manganese Yeast, Reduced Paratinose, Selenium Yeast, Molybdenum Yeast, Chromium Yeast/Shell Cae, Mg Oxide, Vitamin C, Zinc Gluconate, Arginine Rutamate, Cellulose, Alanine, Glycerin, Lysin, Leucine, Phenylalanine, Methionine, Valine, Isoine, Leucin Calcium Iacate, Histidine, Sodium Asparaginate, Threonine, V.B6, Proline, V.B2, Niacin, Calcium Stearate, V.B1, Glue (Pullan, HPMC), Tryptophan, Serine, Iron Pyrophosphate, Vitamin E Acetate, Serac, Calcium Panthenate, Cystine, Copper Gluconate, Tyrosine, V. A, folic acid, bio Otine, V.D, and V.B12 (contains some dairy ingredients)
Color: Orange

￥2,355 ￥3,696 36% Off
09

ディアナチュラ
36% Off

Show more

On Amazon

Dear-Natura Strong 39 Amino Multivitamin & Mineral, 300 Tablets (100 Day Supply), Asahi Supplement, Made in Japan Factories
8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Pellets
Package Size: 4.4 x 2.3 x 2.3 inches (113.0 x 58.0 x 58.0
Original Country: Japan
Ingredients: Dextrin, Manganese Yeast, Reduced Paratinose, Selenium Yeast, Molybdenum Yeast, Chromium Yeast/Shell Cae, Mg Oxide, Vitamin C, Zinc Gluconate, Arginine Rutamate, Cellulose, Alanine, Glycerin, Lysin, Leucine, Phenylalanine, Methionine, Valine, Isoine, Leucin Calcium Iacate, Histidine, Sodium Asparaginate, Threonine, V.B6, Proline, V.B2, Niacin, Calcium Stearate, V.B1, Glue (Pullan, HPMC), Tryptophan, Serine, Iron Pyrophosphate, Vitamin E Acetate, Serac, Calcium Panthenate, Cystine, Copper Gluconate, Tyrosine, V. A, folic acid, bio Otine, V.D, and V.B12 (contains some dairy ingredients)
Color: Orange

￥2,355 ￥3,696 36% Off
10

Amino Vital

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On Amazon

Amino Vital Ajinomoto Pro Grapefruit Flavor Granules Amino Acid 3800mg BCAA EAA Conditioning 30 pieces (x 1)
8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

【Usage Scene 1】Supports recovery in all sports such as marathons, cycling, running, swimming, soccer, baseball, volleyball, basketball, tennis, badminton, etc
【How to drink】Since it is a granule type, you can drink it directly with water or sports drinks, and there is no need for measuring or shaking A grapefruit flavor that reduces the characteristic bitterness of amino acids, and is easy to drink
【Features】The amino acids, which are the ingredients of protein, are quickly absorbed into the body A small amount is sufficient, so it won't weigh you down, allowing you to enjoy exercise and meals
This sports supplement contains a combination of all 9 types of essential amino acids (EAA) at 3800 mg Perfect for overall body conditioning for those who want to continue sports every day
Applications 2: Perfect for conditioning outdoor activities such as golf, climbing, hiking, walking, music festivals, etc

￥3,927

10 Best amino acids in 日本

REYS Rays EAA, Developed Under Supervision of Yamazawa Tadaaki, Contains 9 Essential Amino Acids, 600g Nutritional Functional Food, Powder, Beta Alanine, Contains 3 Types of Vitamin B Complex in One

REYS Rays EAA, Developed Under Supervision of Yamazawa Tadaaki, Contains 9 Essential Amino Acids, 600g Nutritional Functional Food, Powder, Beta Alanine, Contains 3 Types of Vitamin B Complex in One

Amino Vital Ajinomoto Gold Grapefruit Flavor Powder, 30 Packets, Amino Acids, 4,000 mg BCAA EAA Conditioning

Power Production Extra Amino Acid 180 Tablets (Approx. 45-Day Supply) WELLBODY Amino Acids Arginine Ornithine for Recovery After Hard Work Nutritional Functional Food [Amazon.co.jp Exclusive]

Power Production Extra Amino Acid 180 Tablets (Approx. 45-Day Supply) WELLBODY Amino Acids Arginine Ornithine for Recovery After Hard Work Nutritional Functional Food [Amazon.co.jp Exclusive]

Amino Vital Ajinomoto Citric Acid Charge Water, Lemon Flavor, 24-bottle box, Citric Acid 4,500 mg, Amino Acid 1,500 mg, BCAA, Sports Drink, Powder, Easy to Dissolve in Water

Amino Vital Ajinomoto Citric Acid Charge Water, Lemon Flavor, 24-bottle box, Citric Acid 4,500 mg, Amino Acid 1,500 mg, BCAA, Sports Drink, Powder, Easy to Dissolve in Water

Dear-Natura Strong 39 Amino Multivitamin & Mineral, 300 Tablets (100 Day Supply), Asahi Supplement, Made in Japan Factories

Dear-Natura Strong 39 Amino Multivitamin & Mineral, 300 Tablets (100 Day Supply), Asahi Supplement, Made in Japan Factories

Amino Vital Ajinomoto Pro Grapefruit Flavor Granules Amino Acid 3800mg BCAA EAA Conditioning 30 pieces (x 1)

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