LOADING... 
$32.99
($0.82/Serving)
Same-Day Delivery. Order by 2PM.
ShippingFree ShippingPick-UpFitness & Muscle Building
Endurance by XTEND
Pickup & Delivery Availability
Narrow by Category
BOGO
XTEND
$32.99
($1.10/Serving)
Same-Day Delivery. Order by 2PM.
ShippingFree ShippingPick-UpBOGO
$32.99
($1.10/Serving)
Same-Day Delivery. Order by 2PM.
ShippingFree ShippingPick-Up
BOGO
$32.99
($1.10/Serving)
Same-Day Delivery. Order by 2PM.
ShippingFree ShippingPick-UpBOGO
$32.99
($1.10/Serving)
Same-Day Delivery. Order by 2PM.
ShippingFree ShippingPick-Up Looking For More?
Related Products
- BodyTechCritical Aminos XT - Intra/Post Workout Powder -
- Glutamine and BCAAs for muscle growth
- Citrulline to support nitric oxide synthesis
- Carnitine for energy production and recovery
- AOX antioxidant protection
- Strawberry Lemonade flavor
It doesn't matter if you're a seasoned athlete or just starting out on your fitness journey - we could all use a little backup when the going gets tough. Critical Aminos XT® by BodyTech® provides intra- and post-workout aid with glutamine, BCAAs, citrulline, and carnitine to promote energy production, muscle performance, and recovery.
This tasty Strawberry Lemonade-flavored powder also features AOX antioxidant protection with vitamin C and grape seed extract.
Frequently Asked Questions
What are BCAAs?
Branched-chain amino acids(BCAAs) include leucine, isoleucine, and valine. They support muscle growth and reduce muscle fatigue.
What is glutamine?
Glutamine is an essential amino acid that helps regulate protein synthesis for muscle recovery.
What is citrulline?
Citrulline is an amino acid involved in the production of nitric oxide, which increases blood flow to working muscles.
What is carnitine?
Carnitine is an amino acid-like compound that supports exercise recovery.
Rated 5 stars out of 5 stars, From 57 customer reviews$29.99 - BodyTechWhey Tech Pro 24 Whey Protein Isolate &
- 24g of protein, 1g of fat, and 1g of sugar per serving
- Combination of whey protein isolate & concentrate
- High concentration of BCAAs to support recovery
- Rich Chocolate flavor
Whey Tech Pro 24 Protein Powder by BodyTech delivers mouthwateringly fun flavor with serious, goal-crushing results. Each serving of this superior quality powder supplies 24g of whey protein isolate and concentrate to fuel lean muscle growth, plus a high concentration of BCAAs to support muscle recovery.
It may taste too good to be true, but this Rich Chocolate protein powder has only 1g of fat and sugar per serving.
Frequently Asked Questions
What are BCAAs?
Branched-chain amino acids (BCAAs) include leucine, isoleucine, and valine. They support muscle growth and reduce muscle fatigue.
What's the difference between whey protein isolate and concentrate?
Whey protein concentrate ranges from 70-80% protein, whereas whey protein isolate ranges from 90-95% protein. Combining whey protein isolate and concentrate results in the building blocks for metabolically active lean muscle tissue.
Rated 4 stars out of 5 stars, From 401 customer reviews$49.99 - Optimum NutritionGOLD STANDARD 100% WHEY Protein Powder – Double
- Helps build and maintain muscle
- Supports endurance and recovery
- Instantized powder for easy mixing
- Double Rich Chocolate flavor
GOLD STANDARD 100% WHEY by Optimum Nutrition fuels your body with 24g of high-quality whey protein derived primarily from whey protein isolate, plus 5.5g of naturally occurring BCAAs to support muscle building, maintenance, endurance, and recovery.
Frequently Asked Questions
What is whey protein isolate?
Whey protein isolate (WPI) has the highest concentration of protein and BCAAs, while having less carbs, cholesterol, and fat compared to other whey proteins. WPI is also low in lactose and easy on your digestive tract.
What are BCAAs?
Branched-chain amino acids (BCAAs) include leucine, isoleucine, and valine. They support muscle growth and reduce muscle fatigue.
Rated 5 stars out of 5 stars, From 1350 customer reviews$199.99 - BodyTechWhey Protein Isolate Powder - Rich Chocolate (3
- Supports muscle growth and exercise recovery
- Fast absorbing
- Low in lactose
- Rich Chocolate flavor
You work hard for your fitness—that's why you need a protein that works just as hard. Fast-digesting, low-calorie, and high-quality Whey Protein Isolate from BodyTech® supports muscle growth and post-workout recovery with 25g of protein, plus a high concentration of BCAAs.
Frequently Asked Questions
What sets whey protein isolate apart from other forms of whey protein?
Whey protein isolates (WPI) have the highest concentration of protein and BCAAs, while having less carbs, cholesterol, and fat compared to other whey proteins. WPI are also low in lactose and easy on the digestive tract.
What are BCAAs?
Branched-chain amino acids (BCAAs) include leucine, isoleucine, and valine. They support muscle growth and reduce muscle fatigue.
Rated 4 stars out of 5 stars, From 393 customer reviews$84.99
Find Endurance by XTEND at The Vitamin Shoppe Store Near You
There are more than 600 The Vitamin Shoppe® stores across the US, so it's very likely you can pop in and find Endurance by XTEND locally. Check out our store locator to find a Shoppe near you. Don’t forget—you’ll save at least 15% on every subscription with Auto Delivery, plus an addition 5% off select brands to help you stay on the path. Not only will you never miss a thing, but you’ll also get free shipping on subscription refills of $25 or more!* You define what better looks (and feels) like—Count on us to help you get there.
Shipping & Returns
-
FREE for Orders over $45
Orders under $45, domestic shipping is only $7.99. Find more at our Shipping Policy page.
Return Policy for Items Purchased Online
Shop with confidence with our Easy Returns Policy. Customers may return any opened or unopened merchandise purchased from any Vitamin Shoppe channel to any Vitamin Shoppe store within 30 days. Find more at our full Returns Policy page.