Rule One R1 Protein, Lightly Salted Caramel - 4530 grams
Rule One R1 Protein, Chocolate Peanut Butter - 4550 grams
Rule One R1 Protein, Mint Chocolate Chip - 896 grams
Rule One R1 Protein, Vanilla Creme - 450 grams
Rule One R1 Protein, Chocolate Fudge - 448 grams
Rule One R1 Protein, Strawberry Banana - 2260 grams
Rule One R1 Protein, Fruity Cereal - 900 grams
Rule One R1 Protein, Vanilla Creme - 900 grams
Rule One R1 Protein, Vanilla Butter Cake - 879 grams
Rule One R1 Protein, Strawberry Banana - 930 grams
Rule One R1 Protein, Strawberries & Creme - 876 grams
Rule One R1 Protein, Lightly Salted Caramel - 900 grams
Rule One R1 Protein, Frozen Banana - 855 grams
Rule One R1 Protein, Cookies & Creme - 900 grams
Rule One R1 Protein, Chocolate Fudge - 912 grams
Rule One R1 Protein, Cafe Mocha - 899 grams
Rule One R1 Protein, Lightly Salted Caramel - 4530 grams
Rule One R1 Protein, Chocolate Peanut Butter - 4550 grams
Rule One R1 Protein, Mint Chocolate Chip - 896 grams
Rule One R1 Protein, Vanilla Creme - 450 grams
Rule One R1 Protein, Chocolate Fudge - 448 grams
Rule One R1 Protein, Strawberry Banana - 2260 grams
Rule One R1 Protein, Fruity Cereal - 900 grams
Rule One R1 Protein, Vanilla Creme - 900 grams
Rule One R1 Protein, Vanilla Butter Cake - 879 grams
Rule One R1 Protein, Strawberry Banana - 930 grams
Rule One R1 Protein, Strawberries & Creme - 876 grams
Rule One R1 Protein, Lightly Salted Caramel - 900 grams
Rule One R1 Protein, Frozen Banana - 855 grams
Rule One R1 Protein, Cookies & Creme - 900 grams
Rule One R1 Protein, Chocolate Fudge - 912 grams
Rule One R1 Protein, Cafe Mocha - 899 grams
"Very quick delivery. Used 3 times, each order arrived the next day before 12:00"
Hugo Dover
"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."
Elina Goulliard
"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."
Elizabeth Moore

Product Description

Rule One Protein Powder is a high-purity whey protein supplement that supports rapid muscle recovery and lean muscle growth after training. Powered by whey protein isolate and hydrolyzed whey protein isolate, it hits your muscles fast to kickstart repair. Rule One Proteins is known for premium, science backed formulas and strict quality standards.

Benefits & Features:

  • Fast absorbing for quick post workout recovery.
  • Each serving delivers 25g protein with over 6g of BCAAs to support muscle synthesis.
  • Low sugar and fat help you manage calories without compromising taste or satisfaction.
  • Manufactured in a GMP certified facility and third party tested for purity and potency, it keeps fillers and banned substances out so you can train with confidence.
  • Unflavoured and chocolate variants mix easily with shakes.

Rule One proteins have built a reputation on pure, fast-digesting formulas designed for athletes who demand results. The R1 Protein Powder uses a blend of whey protein isolate and hydrolyzed whey protein isolate to maximise absorption, helping muscles recover quickly after workouts. The brand's GMP certified facility and commitment to third party testing ensure label accuracy and clean ingredients, with zero fillers and no banned substances. It’s a trusted choice for protein powder that fits into busy, active lifestyles, including quick protein shakes.

Ingredients/Specifications

Calories, Total Fat, Saturated Fat, Trans Fat, Cholesterol, Sodium, Total Carbohydrate, Total Sugars, Includes Added Sugars, Dietary Fiber, Protein, Vitamin D, Calcium, Iron, Potassium

UK Delivery & Returns

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

How to use

Mix one heaped scoop (30.5g) of R1 Protein with approximately 180-240ml of water, milk, or your preferred beverage in a shaker. For a delicious smoothie, add your favourite fruits and ice, blend, and enjoy. For a quick breakfast, stir a scoop into oatmeal or yogurt. Store in a cool, dry place, away from direct sunlight. Keep out of reach of children. Do not exceed the recommended daily intake. This product is a dietary supplement and should not be used as a substitute for a balanced diet.

Please consult the product packaging for accurate instructions on how to use the product.

Nutritional Information

  Amount
Per 100g
Amount
Per Serving
%RI*
Calories 1536.6667 kJ / 366.6667 kcal 461 kJ / 110 kcal
Total Fat 0 g 0 g 0%
Saturated Fat 0 g 0 g 0%
Trans Fat 0 g 0 g
Cholesterol 0 mg 0 mg 0%
Sodium 533.3333 mg 160 mg 7%
Total Carbohydrate 3.3333 g 1 g 1%
Total Sugars 3.3333 g 1 g
Includes Added Sugars 0 g 0 g 0%
Dietary Fiber 0 g 0 g 0%
Protein 83.3333 g 25 g 50%
Vitamin D 0 µg 0 µg 0%
Calcium 400 mg 120 mg 10%
Iron 0 mg 0 mg 0%
Potassium 533.3333 mg 160 mg 4%

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Whey Protein Isolate

Whey protein isolate is a quick absorbing dairy protein rich in essential amino acids that help repair muscle after exercise [which supports daily recovery].

This formula includes whey protein isolate alongside hydrolyzed whey protein isolate, sourced from milk and built for rapid amino acid delivery to the muscles.

What Does Whey Protein Isolate Do?

Whey protein isolate helps maintain normal protein metabolism and supports muscle recovery after training. Its high quality amino-acid profile, including leucine, helps muscle protein synthesis as part of normal physiological processes.

EFSA recognises that high quality protein plays a role in supporting normal muscle function and protein turnover in healthy individuals.

This product is not intended to diagnose, treat, cure or prevent any disease [This statement is not medical advice].

Why it's Welzo

Rule One Proteins has a solid history in high-end, scientifically proven protein formulas made for sport enthusiasts and active lifters. This label is known for purity and openness and a focus on quick-absorbing protein, matching our aim to provide top-quality, results-driven supplements. The maker operates in a GMP-certified plant and commits to independent testing for purity and strength, delivering no fillers and no banned substances, which underpins assurance in label truth and safety. This rigorous quality approach stands out in a crowded market and bolsters steady performance across ranges. For Welzo shoppers, that means a trusted, evidence-based pick from a label with solid credibility for protein purity and real-world results. Rule One Proteins is assessed by Welzo's health pros for meeting our strict testing standards, bolstering our commitment to safety and quality. We suggest this label for its proven quality, dependability and how it suits quick post-workout recovery.

Rule One R1 Protein Powder

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Rule One Protein Powder is a high-purity whey protein supplement that supports rapid muscle recovery and lean muscle growth after training.
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Product Description

Rule One Protein Powder is a high-purity whey protein supplement that supports rapid muscle recovery and lean muscle growth after training. Powered by whey protein isolate and hydrolyzed whey protein isolate, it hits your muscles fast to kickstart repair. Rule One Proteins is known for premium, science backed formulas and strict quality standards.

Benefits & Features:

  • Fast absorbing for quick post workout recovery.
  • Each serving delivers 25g protein with over 6g of BCAAs to support muscle synthesis.
  • Low sugar and fat help you manage calories without compromising taste or satisfaction.
  • Manufactured in a GMP certified facility and third party tested for purity and potency, it keeps fillers and banned substances out so you can train with confidence.
  • Unflavoured and chocolate variants mix easily with shakes.

Rule One proteins have built a reputation on pure, fast-digesting formulas designed for athletes who demand results. The R1 Protein Powder uses a blend of whey protein isolate and hydrolyzed whey protein isolate to maximise absorption, helping muscles recover quickly after workouts. The brand's GMP certified facility and commitment to third party testing ensure label accuracy and clean ingredients, with zero fillers and no banned substances. It’s a trusted choice for protein powder that fits into busy, active lifestyles, including quick protein shakes.

Ingredients/Specifications

Calories, Total Fat, Saturated Fat, Trans Fat, Cholesterol, Sodium, Total Carbohydrate, Total Sugars, Includes Added Sugars, Dietary Fiber, Protein, Vitamin D, Calcium, Iron, Potassium

UK Delivery & Returns

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

How to use

Mix one heaped scoop (30.5g) of R1 Protein with approximately 180-240ml of water, milk, or your preferred beverage in a shaker. For a delicious smoothie, add your favourite fruits and ice, blend, and enjoy. For a quick breakfast, stir a scoop into oatmeal or yogurt. Store in a cool, dry place, away from direct sunlight. Keep out of reach of children. Do not exceed the recommended daily intake. This product is a dietary supplement and should not be used as a substitute for a balanced diet.

Please consult the product packaging for accurate instructions on how to use the product.

Nutritional Information

  Amount
Per 100g
Amount
Per Serving
%RI*
Calories 1536.6667 kJ / 366.6667 kcal 461 kJ / 110 kcal
Total Fat 0 g 0 g 0%
Saturated Fat 0 g 0 g 0%
Trans Fat 0 g 0 g
Cholesterol 0 mg 0 mg 0%
Sodium 533.3333 mg 160 mg 7%
Total Carbohydrate 3.3333 g 1 g 1%
Total Sugars 3.3333 g 1 g
Includes Added Sugars 0 g 0 g 0%
Dietary Fiber 0 g 0 g 0%
Protein 83.3333 g 25 g 50%
Vitamin D 0 µg 0 µg 0%
Calcium 400 mg 120 mg 10%
Iron 0 mg 0 mg 0%
Potassium 533.3333 mg 160 mg 4%

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Whey Protein Isolate

Whey protein isolate is a quick absorbing dairy protein rich in essential amino acids that help repair muscle after exercise [which supports daily recovery].

This formula includes whey protein isolate alongside hydrolyzed whey protein isolate, sourced from milk and built for rapid amino acid delivery to the muscles.

What Does Whey Protein Isolate Do?

Whey protein isolate helps maintain normal protein metabolism and supports muscle recovery after training. Its high quality amino-acid profile, including leucine, helps muscle protein synthesis as part of normal physiological processes.

EFSA recognises that high quality protein plays a role in supporting normal muscle function and protein turnover in healthy individuals.

This product is not intended to diagnose, treat, cure or prevent any disease [This statement is not medical advice].

Why it's Welzo

Rule One Proteins has a solid history in high-end, scientifically proven protein formulas made for sport enthusiasts and active lifters. This label is known for purity and openness and a focus on quick-absorbing protein, matching our aim to provide top-quality, results-driven supplements. The maker operates in a GMP-certified plant and commits to independent testing for purity and strength, delivering no fillers and no banned substances, which underpins assurance in label truth and safety. This rigorous quality approach stands out in a crowded market and bolsters steady performance across ranges. For Welzo shoppers, that means a trusted, evidence-based pick from a label with solid credibility for protein purity and real-world results. Rule One Proteins is assessed by Welzo's health pros for meeting our strict testing standards, bolstering our commitment to safety and quality. We suggest this label for its proven quality, dependability and how it suits quick post-workout recovery.

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Disclaimer

Content team: Dr Sameer Nakedar

Role: Chief Medical Officer

MBBS (London, UK), MRCGP, PGCert

Content team: Paola Drexlar

Role: Medical Content Writer, UK

BA (Hons) Journalism