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Pre-Workout + Protein + Fat Burner

Lean Muscle Stack

Lean Muscle Stack

40 reviews

This stack includes 3 best-selling products: Vintage Blast™ the two-stage pre-workout, Vintage Brawn™ the muscle-building protein blend, and Vintage Burn™ the muscle-preserving fat burner. You’ll have more energy to work out harder, with quality protein to keep your muscles fed, all while burning fat, and only fat.

Regular price $123.22
Regular price $144.97 Sale price $123.22 Sale Sold out
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Protein Flavor
Pre-Workout Flavor
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  • Transparent Label
  • Premium Ingredients
  • Certified GMP Quality
  • Manufactured in the USA

Stack Details

Vintage Blast™

Unlike other pre-workouts, the unique two-stage formula delivers steady energy and pumps. This means no crashing, no dependency, just amazing workouts and gains. More Details →

Directions: Mix 1 scoop with 14-16 oz of water, 15 to 30 minutes before your workout.

Vintage Brawn™

A blend of three protein sources: eggs, milk (casein + whey) and beef. It is far superior than any single-source protein like whey. More Details →

Directions: Add 1 scoop to 6-8 oz of cold water, milk, or your favorite beverage. Shake or blend for 20-30 seconds and enjoy.

Vintage Burn™

A highly effective thermogenic fat burner that helps speed up the body’s metabolism and convert stored fat into energy without wasting muscle. More Details →

Directions: Take 2 capsules twice a day with a meal. Avoid taking before bedtime or on empty stomach.

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Your Reviews

Customer Reviews
4.9 Based on 40 Reviews
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15 Aug 2022
Zachary E.
United States
I recommend this product

Lean muscle stack

I've had an awesome outcome and experience with these products! I can't wait to continue to use them and see progress!

04 Aug 2022
Justin C.
United States United States
I recommend this product

Love it

The protein don't bloat my stomach or give me bad gas but would like to be able to get a sample of all of the proteins but the only option is 2 of the same or chocolate and vanilla

17 Jun 2022
Walter C.
United States United States
I recommend this product

Lean muscle stack

Great product. Been 2 weeks and already seeing changes

06 Jun 2022
Matt G.
United States United States
I recommend this product

Good stuff

Perfect stack. Love all the products. Killer supplements that do the job with no BS

Old School Labs™ Lean Muscle Stack Review
18 Apr 2022
Steven S.
United States United States
I recommend this product

A great pack

I liked every product in this pack. The protein shake taste great, the vintage burn has helped me burn fat and preserve muscle and the pre workout has given me a boost in my workouts.

Frequently Asked Questions

Absolutely. Taking it after workouts will help you preserve lean muscle and boost your metabolism. Using it as a meal replacement – especially to replace a higher-calorie meal – can help you lose fat faster. Vintage Brawn can also help you regulate your appetite: Protein tends to be satiating. Plus, the delicious taste of Vintage Brawn™ helps satisfy cravings for sweets.

Yes. There are all kinds of protein powder recipes online. Protein puddings, cupcakes, pancakes, and so forth. Vintage Brawn™ can be used in many different recipes besides shakes and smoothies.

Vintage Blast™ is specifically designed to deliver its ingredients over an extended period of time, rather than all at once, by harnessing the ingredients’ different digestive and assimilation properties.

Vintage Blast™ contains no carbs, no sugars, and no calories. The sweetening in Vintage Blast™ is provided by stevia leaf extract, a natural sweetener with zero calories and zero carbs.

Most people start to feel Vintage Burn™ working from day 1, the appetite suppression effects are felt around 3-4 days in, and around the 2 week mark is when you will start to see real differences in the mirror – where it counts!

It is scientifically proven that your body burns and adds fat everywhere in the body – including your belly. So, yes.

More Questions?

If you have any questions about this product please feel free to get in touch. At Old School Labs™, we pride ourselves in the quality of our products and our customer service.