Rule One Proteins is brought to you by the Costello family, the founders and former owners of Optimum Nutrition, who sold the company in 2008. Manufactured in Aurora, IL at our state of the art facility, Nutrivo, we are able to provide the highest quality products with transparent formulas at some of the most aggressive pricing in the industry.
Rule 1 News on PricePlow
-
Jun 24, 2025 
Product News
R1 Lean was created.
Category: Stimulant-Free Fat Burners -
Jun 23, 2025 
Product News
R1 Source7 Protein has new variations: Category: Whey Protein -
Jun 15, 2025 
Product News
Lytes was created.
Category: Electrolytes -
Jun 14, 2025 
Product News
R1 Clear Isolate was created.
Category: Clear Whey Protein Isolate -
Jun 14, 2025 
Product News
Men's Multi was created.
Category: Men's Multivitamins -
Jun 13, 2025 
Product News
Women's Multi was created.
Category: Women's Multivitamins -
May 02, 2025 
Product News
R1 Burn was created.
Category: Fat Burners -
Feb 26, 2025 Product News
R1 Source7 Protein has new variations: Category: Whey Protein -
Feb 26, 2025 
Product News
Creatine has new variations: Category: Creatine Monohydrate -
Feb 04, 2025 
Product News
R1 Plant Protein has new variations: Category: Greens Powder -
Jan 08, 2025 
Product News
R1 Energized Fruits & Greens has new variations: Category: Greens Powder -
Nov 22, 2024 
Product News
BCAA has new variations: Category: BCAA Powder -
Nov 21, 2024 
Product News
R1 Protein Naturally Flavored has new variations: Category: Whey Protein -
Apr 04, 2024 
Product News
Fruits & Green was created.
Category: Greens Powder -
Mar 27, 2024 
Product News
Multi-Source Collagen was created.
Categories: Collagen, Joint Supplements -
Mar 26, 2024 
Product News
Pre-Amino Energy was created.
Categories: Amino Acids, Energy & Endurance -
Mar 09, 2024 
Product News
Energized Amino was created.
Category: Amino Acids -
Mar 09, 2024 
Product News
Energized Cognition was created.
Category: Nootropics -
Mar 09, 2024 
Product News
Citrulline was created.
Category: Citrulline -
Mar 09, 2024 
Product News
Plant Protein +Energy was created.
Categories: Energy & Endurance, Vegan Protein Powder -
Mar 07, 2024 
Product News
Pump - Non-Stim Nitric Oxide Support was created.
Category: Stimulant-Free Pre Workout Supplements -
Mar 07, 2024 Product News
BCAA was created.
Category: BCAA Powder -
Feb 29, 2024 Product News
Creatine was created.
Category: Creatine Monohydrate -
Feb 29, 2024 
Product News
Active BCAA was created.
Category: BCAA Powder -
Sep 07, 2023 Product News
R1 Source7 Protein was created.
Category: Whey Protein -
Jun 09, 2023 
Product News
ROAR was created.
Category: Pre Workout Supplements -
Nov 17, 2022 
Product News
R1 Clean Gainer was created.
Category: Weight Gainers -
Sep 14, 2022 
Product News
R1 Mass Gainer was created.
Category: Weight Gainers -
Jan 16, 2022 
Product News
Fish Oil Omega-3s was created.
Category: Omega-3 -
Dec 22, 2021 
Product News
R1 Fruits & Greens +Antioxidants was created.
Categories: Greens Powder, Probiotics -
Nov 21, 2021 
Product News
preLIFT was created.
Category: Pre Workout Supplements -
Nov 13, 2021 
Product News
Lytes Plus was created.
Category: Electrolytes -
Aug 31, 2021 
Product News
R1 Essential Amino 9 +Energy was created.
Category: Essential Amino Acids -
Jul 23, 2021 
Product News
Women's Train Daily was created.
Category: Women's Multivitamins -
May 08, 2021 
Product News
Men's Train Daily Multivitamin was created.
Category: Men's Multivitamins -
Mar 17, 2021 
Product News
BaR1 was created.
Categories: High Protein Snacks, Protein Bars -
Jan 20, 2021 
Product News
R1 Pump Stim-Free was created.
Category: Stimulant-Free Pre Workout Supplements -
Jan 20, 2021 
Product News
Collagen Peptides was created.
Categories: Collagen, Joint Supplements -
Jan 19, 2021 Product News
R1 Protein Naturally Flavored was created.
Category: Whey Protein -
Jan 19, 2021 
Product News
R1 Pro6 Protein was created.
Category: Whey Protein -
Jan 04, 2021 
YouTube Video
Rule1 PLAYER1 | Boost Your Gaming Performance With nooLVL! -
Dec 07, 2020 
Product News
Player 1 was created.
Categories: Gaming Supplements, Nootropics -
Oct 24, 2020 
Product News
R1 WheyCakes was created.
Categories: Healthy Pancakes, Protein Pancakes -
Oct 24, 2020 
Product News
R1 Easy Protein Omelet was created.
Category: Protein Powder -
Jun 16, 2020 Product News
R1 Plant Protein was created.
Category: Greens Powder -
Jun 16, 2020 
Product News
R1 BCAAs was created.
Category: BCAA Powder -
May 05, 2020 Product News
R1 Energized Fruits & Greens was created.
Category: Greens Powder -
Apr 09, 2020 
Product News
Charged Creatine was created.
Categories: Creatine, Energy & Endurance -
Dec 12, 2019 
Product News
R1 Creatine was created.
Category: Creatine -
Dec 12, 2019 
Product News
R1 Glutamine was created.
Category: Glutamine Powder -
Dec 12, 2019 
Product News
R1 Essential Amino 9 was created.
Category: Essential Amino Acids -
Dec 12, 2019 
Product News
R1 Lean 5 was created.
Category: Stimulant-Free Fat Burners -
Feb 23, 2019 
Product News
R1 Train was created.
Category: Intra Workout -
Feb 12, 2019 
Product News
R1 Men's Train Daily was created.
Category: Multivitamins -
Jan 18, 2019 
Product News
R1 Gain was created.
Category: Weight Gainers -
Jan 18, 2019 
Product News
R1 Casein was created.
Category: Casein Protein -
Jan 18, 2019 
Product News
R1 Train BCAAs was created.
Category: BCAA Powder -
Jan 18, 2019 
Product News
R1 LBS was created.
Category: Weight Gainers -
Jan 18, 2019 
Product News
R1 Pre Amino was created.
Category: Energy Aminos -
Jan 18, 2019 
Product News
R1 Pre Train 2.0 was created.
Category: Pre Workout Supplements -
Oct 19, 2018 
Product News
R1 Whey Blend was created.
Category: Whey Protein -
Dec 22, 2014 
Product News
R1 Protein was created.
Category: Whey Protein
Sign up for future Rule 1 news!
Click the button below to sign up for future Rule 1 news, deals, coupons, and reviews!
Rule 1 Price Alerts
The following price alerts are still active:
- Jun 30, 2025R1 Whey Blend 2 Lbs. (only Vanilla Ice Cream) dropped by 8.7% to $24.65 at Campus Protein
- Jun 30, 2025R1 Casein 2 Lbs. (only Chocolate Peanut Butter, Cookies & Cream, Strawberries & Cream, Vanilla Creme) dropped by 10% to $53.99 at Muscle and Strength
- Jun 30, 2025Creatine 525 Grams dropped by 32.1% to $18.99 at Muscle and Strength
- Jun 30, 2025Collagen Peptides 20 Servings (only Peach Mango, Vanilla Creme) dropped by 25% to $14.99 at Muscle and Strength
- Jun 30, 2025BCAA 60 Servings (only Blue Raspberry, Fruit Punch, Grape, Orange, Peach Mango, Unflavored, Watermelon) dropped by 10% to $26.99 at Muscle and Strength
- Jun 30, 2025R1 Essential Amino 9 30 Servings (only Cherry Limeade, Fruit Punch, Grape, Rainbow Candy, Sour Watermelon) dropped by 7.7% to $11.99 at Muscle and Strength
- Jun 30, 2025Energized Amino 30 Servings (only Orange Clementine, Peach Mango, Pineapple Passionfruit, Sour Candy, Watermelon) dropped by 20% to $19.99 at Muscle and Strength
- Jun 30, 2025Energized Amino 30 Servings (only Blue Raspberry, Fruit Punch, Grape) dropped by 17.5% to $19.99 at Muscle and Strength
- Jun 29, 2025R1 Train BCAAs 25 Servings (only Icy Grape) dropped by 17% to $24.99 at Amazon
- Jun 29, 2025Collagen Peptides 28 Servings (only Peach Mango) dropped by 6.6% to $23.99 at Amazon
- Jun 28, 2025Energized Cognition 30 Servings (only Rainbow Candy) dropped by 21.2% to $28.99 at Muscle and Strength
- Jun 28, 2025R1 BCAAs 60 Servings (only Fruit Punch) dropped by 66.5% to $16.43 at DPS Nutrition
- Jun 28, 2025Creatine 60 Servings (only Blue Raspberry) dropped by 11.6% to $16.79 at DPS Nutrition
- Jun 23, 2025R1 Protein 5 Lbs. (only Cafe Mocha, Strawberry Banana, Vanilla Butter Cake) dropped by 8.8% to $72.99 at Muscle and Strength
- Jun 23, 2025R1 Whey Blend 5 Lbs. (only Cafe Mocha, Frozen Banana, Strawberry Banana) dropped by 8% to $45.99 at Muscle and Strength
- Jun 23, 2025R1 Whey Blend 5 Lbs. (only Birthday Cake, Campfire S'mores, Chocolate Fudge, Chocolate Peanut Butter, Cookies & Creme, Fruity Cereal, Lightly Salted Caramel, Mint Chocolate Chip, Strawberries & Cream, Vanilla Ice Cream) dropped by 8% to $45.99 at Muscle and Strength
- Jun 23, 2025R1 Mass Gainer 5.5 Lbs. (only Chocolate Peanut Butter, Cookies & Creme, Strawberries & Creme, Vanilla Creme) dropped by 10.4% to $42.99 at Muscle and Strength
- Jun 23, 2025R1 Men's Train Daily 90 Tablets dropped by 23% to $19.99 at Muscle and Strength
- Jun 23, 2025ROAR 30 Servings dropped by 23% to $19.99 at Muscle and Strength
- Jun 23, 2025R1 Casein 4.1 Lbs. (only Chocolate Fudge, Cookies & Cream, Strawberries & Cream, Vanilla Creme) dropped by 8.5% to $42.99 at Muscle and Strength
- Jun 23, 2025Charged Creatine 30 Servings dropped by 23% to $19.99 at Muscle and Strength
- Jun 22, 2025Active BCAA 30 Servings (only Peach Mango) dropped by 10% to $18.39 at iHerb.com
- Jun 22, 2025Fruits & Green 30 Servings dropped by 17.5% to $21.45 at iHerb.com
- Jun 21, 2025Multi-Source Collagen 25 Servings dropped by 6.2% to $22.99 at Muscle and Strength
- Jun 21, 2025R1 Glutamine 150 Servings dropped by 29.9% to $29.99 at Muscle and Strength
- Jun 20, 2025R1 Whey Blend 10 Lbs. (only Vanilla Ice Cream) dropped by 9.7% to $89.99 at Muscle and Strength
- Jun 08, 2025Active BCAA 30 Servings (only Golden Gummy) dropped by 25% to $15.32 at iHerb.com
- Jun 04, 2025R1 Whey Blend 10 Lbs. (only Chocolate Fudge) dropped by 9.7% to $89.99 at Muscle and Strength
- Jun 03, 2025R1 BCAAs 60 Servings (only Orange Burst) dropped by 69.8% to $16.43 at DPS Nutrition
- May 31, 2025R1 Clean Gainer 9.5 Lbs. dropped by 6.7% to $45.49 at DPS Nutrition
- May 31, 2025R1 Clean Gainer 9.8 Lbs. (only Chocolate Fudge) dropped by 6.7% to $45.49 at DPS Nutrition
- May 31, 2025Men's Train Daily Multivitamin 180 Tablets dropped by 6.7% to $22.39 at DPS Nutrition
- May 31, 2025R1 BCAAs 60 Servings (only Watermelon Splash) dropped by 6.7% to $17.69 at DPS Nutrition
- May 31, 2025Collagen Peptides 50 Servings dropped by 6.7% to $30.75 at DPS Nutrition
- May 31, 2025R1 Mass Gainer 11.4 Lbs. (only Chocolate Fudge) dropped by 6.7% to $38.49 at DPS Nutrition
- May 23, 2025Active BCAA 30 Servings (only Blue Raspberry, Grape) dropped by 10.4% to $13.98 at DPS Nutrition
- May 20, 2025Men's Train Daily Multivitamin 90 Tablets dropped by 7.1% to $12.99 at DPS Nutrition
- May 20, 2025R1 Energized Fruits & Greens 25 Servings dropped by 7.6% to $13.86 at DPS Nutrition
- May 20, 2025R1 Fruits & Greens +Antioxidants 30 Servings dropped by 13.3% to $19.49 at DPS Nutrition
- May 20, 2025Collagen Peptides 20 Servings (only Chocolate Fudge) dropped by 13.3% to $14.72 at DPS Nutrition
- May 20, 2025R1 BCAAs 60 Servings (only Blue Raspberry, Pineapple Blast) dropped by 13.3% to $16.43 at DPS Nutrition
- May 08, 2025R1 Whey Blend 10 Lbs. (only Cookies & Creme) dropped by 9.7% to $89.99 at Muscle and Strength
- Apr 27, 2025Collagen Peptides 28 Servings (only Unflavored) dropped by 10.6% to $25.07 at Walmart
- Apr 17, 2025R1 Essential Amino 9 30 Servings (only Black Cherry Limeade) dropped by 6.2% to $22.95 at Campus Protein
- Jul 28, 2024R1 Creatine 375 Grams dropped by 7.3% to $22.22 at Walmart
- Apr 28, 2023R1 Creatine 750 Grams dropped by 13.2% to $50.31 at Ruesco Supplement Outlet
Sign up for future Rule 1 deals and coupons!
Click the button below to sign up for future Rule 1 deals, news, and coupons!
Rule 1 Reviews & Videos
Subscribe for more Rule 1 news and alerts!
Subscribe to PricePlow on YouTube, follow PricePlow on Instagram or click the button below to sign up for our latest Rule 1 news and reviews!
