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Protein + Fat Burner + Water Bottle

The Afterburner Stack

The Afterburner Stack

This stack includes Vintage Brawn™ muscle-building protein blend, Vintage Burn™ muscle-preserving fat burner, and the OSL Nalgene® 32oz water bottle.

Regular price $99.97
Regular price $119.97 Sale price $99.97 Sale Sold out
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Protein Flavor
Fat Burner Flavor
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  • Transparent Label
  • Premium Ingredients
  • Certified GMP Quality
  • Manufactured in the USA

Stack Details

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: Use 1 scoop (1 serving) of Vintage Burn with 6-8 oz of water in the morning. Experienced users can add an additional serving in the afternoon for maximum results.


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Your Reviews

Frequently Asked Questions

Have a Vintage Brawn protein shake right after your workout. You can also use Vintage Brawn as a meal replacement any other time of day, e.g. first thing in the morning (breakfast), as a mid-afternoon snack, or before bed.


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.


Having Vintage Brawn™ after cardio is a great way to enhance recovery. Plus, because it’s high in protein but low in carbs, it won’t cause your fat-burning metabolism to slow down, unlike what happens if you eat a meal high in carbs (especially high-GI 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.


You will feel jitter-free, clean energy and will notice a positive change in your mood and improvement in your ability to focus. So you will not only see Vintage Burn™ working through the results you are getting, but will also enjoy feeling it work.


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.