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Pure Protein Powder, Natural Whey, High Protein, Low Sugar, Gluten Free, French Vanilla, 1.6 lbs
US Store
Pure Protein

Pure Protein Powder, Natural Whey, High Protein, Low Sugar, Gluten Free, French ...
4.4

50+ bought

JPY 10936

Pure Protein Powder, Whey, High Protein, Low Sugar, Gluten Free, Rich Chocolate, 1 lb
US Store
Pure Protein

Pure Protein Powder, Whey, High Protein, Low Sugar, Gluten Free, Rich Chocolate, 1 lb
4.4

100+ bought

JPY 10560

Select Protein Powder
US Store
PEScience

Select Protein Powder
4.4

JPY 5222

Possible Protein Powder - Muscle Growth & Recovery Support - Plant-Based Protein - Essential Amino Acids & BCAAs - Vegan, Gluten-Free & USDA Organic - Chocolate, 1.25 Pound Pack of 1
US Store
Possible

Possible Protein Powder - Muscle Growth & Recovery Support - Plant-Based Protein - ...
3.8

JPY 8768

Optimum Nutrition, Gold Standard 100% Plant Protein Powder, Creamy Vanilla 1lb Tub
US Store
Optimum Nutrition

Optimum Nutrition, Gold Standard 100% Plant Protein Powder, Creamy Vanilla 1lb Tub
4.5

JPY 9232

Myprotein Impact Whey Protein Powder, 2.2 Lbs 30 Servings Chocolate Milkshake, 22g Protein & 5g BCAA Per Serving, Protein Shake for Superior Performance, Muscle Strength & Recovery, Gluten Free
US Store
Myprotein

Myprotein Impact Whey Protein Powder, 2.2 Lbs 30 Servings Chocolate Milkshake, 22g ...
4.3

600+ bought

JPY 8768

15% OFF
Transformation Vanilla Protein Powder, Super Greens Superfood Green Juice Powder and Performance Insulated Shaker Bottle
US Store
SPR BODY

Transformation Vanilla Protein Powder, Super Greens Superfood Green Juice Powder ...

JPY 27660 32609

5% OFF
Possible Vanilla & Chocolate Protein Powder 30-Day
US Store
Possible

Possible Vanilla & Chocolate Protein Powder 30-Day

JPY 31040 32629

Pure Protein Powder
US Store
purrot

Pure Protein Powder
5

JPY 6779

5% OFF
Possible Vanilla & Chocolate Protein Powder 15-Day
US Store
Possible

Possible Vanilla & Chocolate Protein Powder 15-Day

JPY 15927 16720

15% OFF
Transformation Vanilla Protein Powder & Performance Insulated Shaker Bottle | 30G Multi-Protein Superblend | Collagen Peptides, Egg White & Plant Blend | MCT Oil | BCAA Amino Acids
US Store
SPR BODY

Transformation Vanilla Protein Powder & Performance Insulated Shaker Bottle | 30G ...
3.8

JPY 17518 20688

Pure Protein Vanilla Protein Shake, 30g Complete Protein, Vitamins A, C, D, and E plus Zinc & Optimum Nutrition Gold Standard Protein Shake, 24g Protein, Ready to Drink Protein Shake
US Store
Pure Protein

Pure Protein Vanilla Protein Shake, 30g Complete Protein, Vitamins A, C, D, and E ...
4

JPY 11105

15% OFF
Transformation Chocolate & Vanilla Protein Powder | 30G Multi-Protein Superblend | Collagen Peptides, Egg White & Plant Blend | MCT Oil | BCAA Amino Acids | Probiotics & Enzymes | Low Carb Shake
US Store
SPR BODY

Transformation Chocolate & Vanilla Protein Powder | 30G Multi-Protein Superblend | ...
4.2

JPY 24279 28636

Pure Protein Powder, Whey, High Protein, Low Sugar, Gluten Free, Vanilla Cream, 1.75 lbs
US Store
Pure Protein

Pure Protein Powder, Whey, High Protein, Low Sugar, Gluten Free, Vanilla Cream, ...
4.5

3k+ bought

JPY 9848

Select Protein Powder
US Store
PEScience

Select Protein Powder
4.4

JPY 5222

Select Protein Powder
US Store
PEScience

Select Protein Powder
4.4

JPY 20863

MYHERBS Plant Protein Powder | Pea and Brown Rice Protein Powder | Vegan High Protein Powder | 27 gm Protien,21 Vital,6 gm BCCAs | Sugar Free | for Men and Women | Chocolate Flavour 1 Kg
US Store

MYHERBS Plant Protein Powder | Pea and Brown Rice Protein Powder | Vegan High ...

JPY 14338

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US Store
PEScience

Select Protein Powder
4.4

JPY 11840

Myprotein - Vegan Blend Powder - Natural Plant Based Protein Powder w/Pea & Rice Protein - Gluten Free, Sugar Free, Fitness Nutrition - Recovery w/Amino Acids - Vanilla Chai, 2.2 Lb 22 Servings
US Store
Myprotein

Myprotein - Vegan Blend Powder - Natural Plant Based Protein Powder w/Pea & Rice ...
2.3

JPY 10757

Optimum Nutrition, Gold Standard 100% Plant Protein Powder, Rich Chocolate Fudge 1lb Tub
US Store
Optimum Nutrition

Optimum Nutrition, Gold Standard 100% Plant Protein Powder, Rich Chocolate Fudge ...
4.5

JPY 9232

MusclePharm Combat Protein Powder - 4 lb, 52 Servings, Chocolate Milk
US Store
musclepharm

MusclePharm Combat Protein Powder - 4 lb, 52 Servings, Chocolate Milk
5

JPY 14848

Ultimate Nutrition Prostar 100% Whey Protein Powder, Banana, 5 lb, 80 Servings
US Store
Ultimate Nutrition

Ultimate Nutrition Prostar 100% Whey Protein Powder, Banana, 5 lb, 80 Servings

JPY 20863

MusclePharm Combat Protein Powder - 4 lb, 52 Servings, Vanilla
US Store
musclepharm

MusclePharm Combat Protein Powder - 4 lb, 52 Servings, Vanilla
5

JPY 14848

Pure Protein 100% Whey Protein Powder, Rich Chocolate, 25g Protein, 1.75 lb
US Store
Pure Protein

Pure Protein 100% Whey Protein Powder, Rich Chocolate, 25g Protein, 1.75 lb
4.5

JPY 8228

MusclePharm Combat Protein Powder - 4 lb, 52 Servings, Banana Cream
US Store
musclepharm

MusclePharm Combat Protein Powder - 4 lb, 52 Servings, Banana Cream

JPY 14848

Pure Protein Chocolate and Vanilla Protein Shakes, 30g Protein, 11oz Bottles, 12 Pack Bundle
US Store
Pure Protein

Pure Protein Chocolate and Vanilla Protein Shakes, 30g Protein, 11oz Bottles, 12 ...
5

JPY 11435

Quest Protein Powder, Vanilla Milkshake, 24g Protein, 25.6 oz
US Store
Quest Nutrition

Quest Protein Powder, Vanilla Milkshake, 24g Protein, 25.6 oz
4.7

JPY 8831

Plant Based Protein Powder for Optimal Gut Health, Probiotic Protein Shake with Fermented Plant Proteins, Vegan, Dairy & Stevia-Free, Chocolate
US Store
Clean Program

Plant Based Protein Powder for Optimal Gut Health, Probiotic Protein Shake with ...
4.4

JPY 12349

Whey Protein Powder Travel Single Serving Packs Five Delicious Flavors, Cold Filtered for Maximum Absorption, 25g Protein, 6.6g BCAAs/Serving,0g Sugar-Perfect for Muscle Building & Recovery
US Store
COLOSSAL LABS

Whey Protein Powder Travel Single Serving Packs Five Delicious Flavors, Cold ...
3.6

JPY 5785

18% OFF
Premier Protein Powder, Vanilla Milkshake, 30G Protein, 1G Sugar, 100%
US Store
premier protein

Premier Protein Powder, Vanilla Milkshake, 30G Protein, 1G Sugar, 100%
4.7

JPY 8793 10788

MusclePharm Combat Protein Powder - 2 lb, 25 Servings, Chocolate Milk
US Store
musclepharm

MusclePharm Combat Protein Powder - 2 lb, 25 Servings, Chocolate Milk
4.9

JPY 9435

Pure Protein 100% Whey Protein Powder, Vanilla Cream, 25g Protein, 1.75 lbs
US Store
Pure Protein

Pure Protein 100% Whey Protein Powder, Vanilla Cream, 25g Protein, 1.75 lbs
4.4

JPY 8228

Optimum Nutrition, Gold Standard 100% Whey Protein Powder, Double Rich Chocolate, 1 Serving Sachet
US Store
Optimum Nutrition

Optimum Nutrition, Gold Standard 100% Whey Protein Powder, Double Rich Chocolate, 1 ...
4.5

JPY 2818

BetterBody Foods Organic Plant Based Protein Powder, 16g of Protein 24% DV, Vegan, 12.7 oz
US Store
BetterBody Foods

BetterBody Foods Organic Plant Based Protein Powder, 16g of Protein 24% DV, Vegan, ...
4.2

JPY 4815

10% OFF
Premier Protein 100% Whey Protein Powder, Caf Latte, 30g Protein, 23.9 oz, 1.5lb
US Store
Premier Protein

Premier Protein 100% Whey Protein Powder, Caf Latte, 30g Protein, 23.9 oz, 1.5lb
4.5

JPY 8226 9150

Treigning Lab Protein Powder, 20g Whey Powder, Sam Calavitta Coach Cal Approved USA Made, Keto Friendly, Vegan, Non-GMO, Chocolate, 30Servings
US Store
The Treigning Lab

Treigning Lab Protein Powder, 20g Whey Powder, Sam Calavitta Coach Cal Approved USA ...

JPY 14726

Select Protein Powder
US Store
PEScience

Select Protein Powder
4.4

JPY 11840

Myprotein Impact Whey Protein Powder, Chocolate Milkshake, 5.5 lbs
US Store
Myprotein

Myprotein Impact Whey Protein Powder, Chocolate Milkshake, 5.5 lbs
4.5

JPY 15850

Optimum Nutrition 1066772 Protein Powder - 10.58 oz
US Store

Optimum Nutrition 1066772 Protein Powder - 10.58 oz
5

JPY 4023

Steel Supplements Whey-Pro | 100% Pure Whey Protein Powder for Men and Women | Chocolate Peppermint | Muscle Gain & Lean Muscle Recovery | Gluten Free | 1.65 lbs | BCAA 5g | Non-GMO | 25 Servings
US Store
Steel Supplements

Steel Supplements Whey-Pro | 100% Pure Whey Protein Powder for Men and Women | ...
2.6

JPY 9764

15% OFF
Transformation Chocolate Protein Powder, Super Greens Superfood Green Juice Powder and Performance Insulated Shaker Bottle
US Store
SPR BODY

Transformation Chocolate Protein Powder, Super Greens Superfood Green Juice Powder ...
5

JPY 27660 32609

Plant-Based Protein Powder for Men and Women 30g Complete Plant Protein and 3g Leucine, Zero Bloat, Gourmet Cocoa, Smooth Texture, Dark Chocolate, 15 Servings - Scoop Not Included
US Store
RISE311

Plant-Based Protein Powder for Men and Women 30g Complete Plant Protein and 3g ...
4.2

100+ bought

JPY 12449

Ultimate Nutrition Prostar Whey Protein Powder Isolate, Chocolate - Low Carb, High Protein Powder Shake for Muscle Gain & Recovery - Low Sodium, Low-Fat & Keto Friendly - 5.28 lbs Tub
US Store
Ultimate Nutrition

Ultimate Nutrition Prostar Whey Protein Powder Isolate, Chocolate - Low Carb, High ...
4

JPY 17717

Ultimate Nutrition Prostar Whey Protein Powder Isolate, Chocolate - Low Carb, High Protein Powder Shake for Muscle Gain & Recovery - Low Sodium, Low-Fat & Keto Friendly - 5.28 lbs Tub
US Store
Ultimate Nutrition

Ultimate Nutrition Prostar Whey Protein Powder Isolate, Chocolate - Low Carb, High ...
3.9

JPY 17717

Organic Pea Protein Powder - Plant Based & Vegan Protein Powder - Unflavored & Gluten Free, 30g per Serving, 100g 3.5 oz Pack of 1
US Store
BulkSupplements

Organic Pea Protein Powder - Plant Based & Vegan Protein Powder - Unflavored & ...
4

JPY 4588

Ultimate Nutrition Prostar 100% Whey Protein Powder -banana10lb
US Store
Ultimate Nutrition

Ultimate Nutrition Prostar 100% Whey Protein Powder -banana10lb
3

JPY 34899

Optimum Nutrition, Gold Standard 100% Whey Protein Powder, Double Rich Chocolate, 10 lb, 149 Servings
US Store
Optimum Nutrition

Optimum Nutrition, Gold Standard 100% Whey Protein Powder, Double Rich Chocolate, ...
4.6

JPY 40912

Select Protein Powder
US Store
PEScience

Select Protein Powder
4.4

JPY 11840

Stronger Every Scoop – Shop Premium Protein Powder Online from Ubuy Japan

Fuel your workouts, boost recovery, and achieve your fitness goals with premium protein powder from Ubuy Japan, your trusted global marketplace for health & supplements. Whether you’re an athlete, fitness enthusiast, or someone trying to maintain a balanced lifestyle, adding the right protein supplement to your routine can make all the difference.

Here, you can buy protein powder online from world-renowned brands such as Optimum Nutrition, Dymatize, and many more. Each blend is formulated to support muscle recovery, endurance, and growth, whether you’re aiming for lean definition or mass gain. From the best protein powder for muscle gain to dairy-free protein powder for sensitive digestion, we bring you every option under one roof.

A vast range of sports nutrition products, including mass gainer, sugar-free, and unflavoured protein powder, is available for those who like to customise their shakes. Whether you love classic vanilla protein powder or need the best protein powder for men and women, we deliver authentic, imported products directly to your doorstep.

Explore Different Types of Protein Powder

Different bodies have different needs, and so does your protein source. Here’s a complete guide to help you explore different types of protein powder supplements, featuring the most trusted formulations.

Whey Protein – The Classic for Strength & Speed

When it comes to the best protein powder for muscle gain, whey protein tops the list. It’s a fast-digesting, complete protein that delivers all essential amino acids for quick recovery and muscle repair. Optimum Nutrition’s Gold Standard Whey and Dymatize Elite Whey are among the most popular choices in the sports nutrition category, ideal for post-workout shakes and muscle recovery. Enjoy them as vanilla protein powder, chocolate, or unflavoured for your custom mix. Over on Reddit’s r/StrongerByScience community, users often discuss protein quality and effectiveness. One user shared a refreshingly simple perspective:

“Its the contrary, whey protein is very high quality. One of the reasons is because it is high in leucine. If anything it is higher quality than most vegetal sources of protein.

But you're overthinking here because protein quality does not matter if you eat a lot of it.

If you're eating 200g of protein it does not matter where you get it from.”

Source: r/StrongerByScience (Reddit)

Whether you’re a seasoned lifter fine-tuning your nutrition or just starting your fitness journey, the right protein powder can accelerate muscle growth, aid recovery, and help you reach your goals faster, one scoop at a time.

Casein Protein – Night-Time Recovery Fuel

Unlike whey, casein protein digests slowly, making it perfect for nighttime nourishment. It supports muscle repair while you rest and prevents breakdown during fasting hours. Explore True Nutrition and Optimum Nutrition’s micellar casein protein supplements range,  ideal for those who want sustained-release protein for long-lasting muscle support.

Egg Protein – The All-Natural Power Source

Derived from egg whites, egg protein is a lactose-free, nutrient-rich option loaded with essential amino acids. It’s a great alternative to dairy and soy, supporting lean muscle gain without added sugars or fillers. Try True Nutrition’s pure egg protein powder, available in unflavoured for easy blending into your meals or shakes.

Soy Protein – The Plant-Based Performer

If you’re looking for a vegan protein powder that doesn’t compromise on amino acid content, soy protein is your ideal pick. It helps build muscle and enhances endurance while being completely dairy-free. Brands like Dymatize and True Nutrition offer premium soy-based protein powders for those following a vegetarian or plant-forward diet. Reddit users in the r/PHitness community have shared their real-world experiences with plant-based protein powders. One user described their practical and personal take,

“Soy protein isolate na ang pinaka sulit na protein powder. Decent macros, tons of fiber, and soy is a really high quality protein. (Kaya hinahaluan ko din ng TVP yung giniling ko.)

But the taste. Ugh. It's like drinking flavored latak. There are worse textures, pero sanayan talaga.”

Source: r/PHitness (Reddit)

Whether you’re fully plant-based or just exploring dairy-free options, the right soy protein powder can make all the difference, giving you the nutrition, recovery, and performance you need to stay strong and energised.

Pea Protein – Gentle and Balanced

Pea protein is another dairy-free protein powder option that’s hypoallergenic and easy on digestion. It’s rich in BCAAs and ideal for anyone sensitive to lactose or gluten. With True Nutrition’s plant-based pea blends, you get clean, balanced protein support that fits into vegan lifestyles or post-workout recovery routines.

Rice Protein – Clean & Hypoallergenic Nutrition

Rice protein powder provides a gentle yet effective source of protein, perfect for those with food sensitivities. It’s also a great base for blending with other plant proteins like pea or hemp. Choose True Nutrition’s rice protein for muscle recovery, weight management, and sustained energy without allergens or additives.

Hemp Protein – The Complete Superfood Protein

Packed with Omega-3 and Omega-6 fatty acids, hemp protein powder is more than just protein; it’s a complete superfood. It supports metabolism, muscle recovery, and heart health. Under health & supplements, True Nutrition offers hemp-based blends that are vegan, organic, and ideal for those seeking holistic nutrition.

Top Picks of Protein Powders for Every Fitness Goal

Discover the best protein types from various protein supplements tailored for strength, endurance, and recovery. Find your match under sports nutrition exclusively at Ubuy Japan.

Protein Powder Type

Description

Top Brands

Best For

Whey Protein

Quick absorption and complete amino profile

Optimum Nutrition, Dymatize

Muscle gain & post-workout recovery

Casein Protein

Slow-digesting formula for sustained repair

True Nutrition, Optimum Nutrition

Overnight recovery & lean muscle retention

Egg Protein

Dairy-free and nutrient-rich

True Nutrition

Lean muscle growth & lactose intolerance

Soy Protein

Vegan, high-protein alternative

Dymatize, True Nutrition

Endurance & strength support

Pea Protein

Gentle on digestion and allergen-free

True Nutrition, Optimum Nutrition

Vegan & gluten-free diets

Rice Protein

Clean, plant-based energy source

True Nutrition

Hypoallergenic nutrition & recovery

Hemp Protein

Omega-rich and organic

True Nutrition

Balanced diet & vegan wellness

Mass Gainer Protein Powder

High-calorie blend with carbs & protein

Dymatize, Optimum Nutrition

Weight gain & strength building

Sugar-Free Protein Powder

No added sugar, clean formula

True Nutrition

Low-carb & weight management goals

Vanilla / Unflavoured Protein Powder

Customisable taste options

Optimum Nutrition

Everyday use & flexibility

Frequently Asked Questions About Protein Powder

  • Is it safe to drink protein powder every day?

    Protein powder can be safe to drink on a daily basis, depending on the intake criteria. For specific criteria, it is suggested that one consume up to 1.5 grams of protein for health results.

  • What kind of protein powder is best?

    Whey protein powders are compared effective to other protein supplements, as they enter the blood faster to provide essential protein to muscles and fuel overall health.

  • Do I really need protein powder?

    Protein powders are not necessarily required, but they are beneficial in many ways. For athletes, they help provide speedy muscle recovery, which is useful for people chasing an active lifestyle. Protein shakes and bars help vegan people get extra protein and are helpful for people with limited appetites and restricted diet plans.

  • Can I take protein powder for weight loss?

    Yes, protein powders are helpful in weight loss, along with suggested exercise and healthy food choices.

  • Where can I buy protein powders online in Japan?

    Buy protein powders at exclusive prices from Ubuy Japan; some of the top brands for you to choose from are MyProtein, MuscleTech, Optimum Nutrition, and more.

  • What is protein powder, and who should use it?

    Protein powder is a convenient supplement used to increase daily protein intake. It’s beneficial for athletes, gym-goers, and anyone wanting to maintain lean muscle. You can explore a wide variety at Ubuy Japan.

  • Is it necessary to use protein powder to build muscle?

    Not always, but protein powder helps you meet your daily protein requirements efficiently. For muscle gain or weight management, options like whey and mass gainer protein powder are the most effective.

  • What is the difference between whey, casein, and plant-based protein?

    Whey protein is fast-absorbing and great post-workout, casein protein digests slowly for night-time recovery, and plant-based proteins like soy, pea, or hemp protein are suitable for vegans or those with dietary restrictions.

  • Can protein powder damage my kidneys?

    When consumed in moderation, high-quality protein powders from Optimum Nutrition, Dymatize, or True Nutrition are completely safe. Always drink plenty of water and follow serving recommendations.