Lean Muscle Stack

Lean Muscle Stack

32 reviews
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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.

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Burn Fat, Build Muscle


This stack has Vintage Brawn™, a blend of the three quintessential protein sources from the Golden Era of bodybuilding – eggs, milk, and beef. They are expertly sourced and blended to provide muscle-building results that exceed any single-source regular protein powder on the market today, including whey!


Vintage Burn™, a highly effective thermogenic fat burner that speeds up the body’s metabolism. It also converts stored fat into energy without wasting muscle.


And Vintage Blast™, which has a unique two-stage formula that helps fight dependency and delivers steady energy during your entire workout. It also also delivers nine key electrolytes and micronutrients that help with hydration and decreasing oxidation.

non-GMO

NON

GMO

nothing artificial

NOTHING

ARTIFICIAL

FDA certified

GMP

CERTIFIED

Manufactured in USA

MANUFACTURED

IN USA

The Details


Vintage Blast™

How to Use It
1 scoop

Mix 1 scoop with

14-16 oz water

30 minutes before meals

30 minutes

before workout

Assess your tolerance with one-half scoop mixed with 14-16 oz. water, 15 to 30 minutes before your workout. Then continue with 1 scoop 15 to 30 minutes before workouts.

Due to its potency, do not exceed the recommended dosage and avoid taking before bedtime. Do not consume on non-workout days.

Main Ingredients
Amino Acids

L-Citrulline Malate

A naturally occurring amino acid that improves endurance, relieves soreness and improves aerobic endurance.

Beta Alanine

An amino acid that boosts athletic performance and exercise capacity, and helps improve physical functioning.

L-Arginine AKG

Made from the amino acid arginine and alpha-ketoglutaric acid, a naturally occurring chemical. In the body, L-arginine is converted into nitric oxide, which dilates blood vessels for improved blood flow.

L-Carnitine Tartrate

An amino acid that is important for heart and brain function, muscle movement, and many other athletic processes.

N-Acetyl-L-Tyrosine

An amino acid used by the body and brain to support peak performance by helping alertness, alleviating stress, and improving neural communication.

D-Aspartic Acid

Helps enhance endurance and muscular development, and speed the recovery process.

Caffeine

Caffeine Anhydrous

A known catalyst of metabolism and thermogenesis, caffeine boosts your metabolic rate and energy expenditure, and increases alertness and focus.

Micro-Encapsulated Caffeine

A special form of caffeine that provides a controlled release into the body, helping boost alertness and focus longer, and preventing “caffeine crash.”

Vitamins & Minerals

Vitamin C

A vitamin that reduces oxidative stress and helps protect proteins from oxidative damage that commonly occurs during training.

Niacin

A vitamin that reduces oxidative stress and helps protect proteins from oxidative damage that commonly occurs during training.

Vitamin B6

A vitamin typically found in fresh vegetables and linked to amino acid, glucose and lipid metabolism, as well as hemoglobin synthesis.

Vitamin B12

A micronutrient used to convert protein and carbohydrates into energy and essential for getting oxygen to tissues in order to help peak performance.

Vitamin B5

Typically found in avocadoes and high-quality legumes, this water-soluble vitamin plays important roles in energy metabolism and biosynthesis of essential compounds in the body.

Magnesium

A mineral involved in multiple biochemical reactions of metabolic function, including energy production, cardiovascular regulation and exercise performance.

Sodium

A macromineral that plays a key role in normal nerve and muscle function, as well as keeping body fluids in normal balance.

Potassium

An electrolyte and mineral that plays an important role in proper neuron function.

Other Ingredients

Stevia Leaf Extract

A natural sweetener that contains no calories. We use a small amount to remove the bitterness and acidity naturally occurring in the ingredients of Vintage Blast™.

Natural Pineapple Fruit Powder

Adds a refreshing kick to the signature blueberry lemonade taste of Vintage Blast™.

Silicon Dioxide

We use this vegetarian-friendly compound, naturally found in many foods, as a flow agent.

Calcium Silicate

A vegetarian-friendly compound, naturally found in many foods, is used in combination with silicon dioxide as a flow agent.  

Natural Flavors

Only natural flavors go into our refreshing blueberry lemonade taste. Countless iterations of taste-testing allowed us to arrive at a flavor that is not only natural, but tastes great and mixes easily.

Natural Fruit and Vegetable Juice (Color)

This natural colorant is free of chemical solvents and GMO ingredients, and is made from high-quality fruits and vegetables to give Vintage Blast™ its light-cherry color.

Dicalcium Phosphate (from Vitamin B12)

Resulting from the addition of Vitamin B12, DCP is commonly used as a source of calcium and phosphorous.

Vintage Brawn™

How to Use It
1 scoop

Mix 1 scoop with

6-8 oz water

after workout

Within 30 minutes

after workout

Add 1 scoop of Vintage Brawn™ to 6-8 fl oz of cold water, milk, or your favorite beverage. Shake or blend for 20-30 seconds and enjoy. Take one serving during the day: post workout on training days, and anytime on rest days.

Main Ingredients

Egg White Protein

Eggs have long been considered a perfect source of bodybuilding protein. They have a full complement of essential amino acids and they are easy to digest. However, they also contain fat and cholesterol, which is why we use only egg white protein in Vintage Brawn™ – sourced from eggs produced in the USA.

Milk Protein Isolate

Milk protein isolate (MPI) may be one of the most overlooked protein sources in sports nutrition. The two major proteins in milk are casein and whey. While whey tends to be absorbed quickly, casein has a “sustained-release” profile. MPI extracts these two complementary proteins from milk, leaving behind virtually all of the fat, sugar (lactose), and other nutritional “baggage".  

Beef Protein Isolate

We use a beef protein isolate made from fresh beef using a USDA-approved process. It contains high levels of conditionally essential amino acids and is easy to digest.

¹ Wicked Chocolate and Chocolate Coconut flavors only.

Dutch Cocoa Powder¹

Gives Vintage Brawn™ its signature rich and deep chocolate flavor. It has a more intense and smoother taste than regular cocoa.

Other Ingredients

Natural Flavors

Countless iterations of taste-testing allowed us to arrive at a flavor that is not only natural, but tastes great and mixes easily. 

Vegetable-Based Antifoam²

Helps reduce the formation of foam. It is made of Silica, Propylene Glycol, Mono and Diglycerides.  

Organic Stevia Leaf Extract

Stevia is a natural sweetener which is extracted from the Stevia rebaudiana plant. It has no calories.  

Sea Salt

Also known as Sodium Chloride, helps bring out the flavors. 

Monk Fruit Extract

A natural, zero-calorie sweetener.  

Xylitol Crystalline³

Also a natural sweetener

² Chocolate Coconut and Vanilla Milkshake flavors only.

³ Vanilla Milkshake flavor only.

Vintage Burn™

How to Use It
2 capsules

Take 2 capsules

twice a day

10 minutes before meals

10 minutes

before meals

Start by taking 1 capsule twice a day with meals for 3 days to assess your tolerance. Then continue with 2 capsules twice a day with meals.

Avoid taking on an empty stomach or less than 4 hours before bedtime and do not exceed the recommended dosage.

Main Ingredients

Green Tea Leaf Extract

Activates your fat mobilization by elevating your body’s resting metabolic rate. Also provides you potent antioxidant benefits, helping you be in good health to allow for intense fat burning.

Green Coffee Bean

Extract Not only improves your mental mood and focus, but also safely curbs your body’s fat and glucose absorption from food intake while sparing the protein you need to support lean muscle.

Raspberry Ketones

Increases your metabolism and energy levels and helps control your appetite. Controlling your appetite to eat the right foods is an important factor in a smart & sustainable fat loss plan.

Olive Leaf Extract

Fires up your metabolism by boosting your level of active thyroid hormones safely and naturally. Also loaded with healing properties that can be beneficial to aid recovery from exercise.

Caffeine

A known catalyst of metabolism and thermogenesis, caffeine will help you break down fatty acids and manage your appetite. It will also increase your alertness and focus to help you stay on track for fat loss.  

Bacopa Leaf Exract

Inhibits the metabolic slowdown associated with dieting to ensure that your fat loss rate stays optimal. Also helps lift your mood up, which is important yet often overlooked when working on fat loss.

Garcinia Fruit Extract

Reduces your body’s formation and storage of new fat cells and ignites thorough fat burning. Also helps curb your appetite for carbohydrates, which can go a long way to helping you lose fat.

Chrysin

Preserves your hard-earned muscle by safely ensuring that natural estrogen levels in your body stay at optimal levels. Spared muscle leads to a higher resting metabolic rate, which also supports fat loss.

Forskohlii Root Extract

Powerfully sparks the breakdown of stored fats and the release of fatty acids while sparing muscle and strength. Keeping your strength while losing fat allows you to keep training hard and getting results.

Other Ingredients

Vegetable Capsule

Our rapid-release vegetable capsules are completely see-through and made only from plant cellulose. No gelatin is ever used.

Vegetable Stearate

The highest quality vegetable based stearate is used to ensure that each and every capsule contains the same amount of fat burning and muscle preserving active ingredients.

Your Reviews


Customer Reviews
4.9 Based on 32 Reviews
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RB
18 Sep 2021
Ricardo B.
United States United States
I recommend this product
Amazing stack and amazing customer service!

These product as are amazing and have really boosted me up I’m my training. I struggled so long to find the right products for me until I stumbled on old school labs and I haven’t looked back since. This is a great stack to start with and you will not be disappointed!

Old School Labs™ Lean Muscle Stack Review
BN
27 Apr 2021
Brandon N.
United States United States
I recommend this product

Works great lost 15lbs

CJ
23 Mar 2021
Christopher J.
United States United States
I recommend this product
My lean muscle stack

I am very happy with my order I have lost alot of weight I will get this agen and customer service is very helpful I will stick with this company

RJ
20 Mar 2021
Raj J.
United States United States
I recommend this product
Great stuff

These products are amazing and work!!! Already down several pounds and my clothes are fitting better

DP
24 Jan 2021
Daniel P.
United States United States
I recommend this product
Solid stack

Very effective and super fast shipping. I’ll definitely be purchasing again.

Frequently Asked Questions


1. I’m trying to gain muscle, so what is the best way to use Vintage Brawn™?
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.
2. Should I have a protein shake after cardio?
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).
3. Does Vintage Brawn™ have any beef or egg aftertaste?
We can happily confirm that there is absolutely NO beef or egg taste or aftertaste (nor milk for that matter). The flavor is delicious rich chocolate, made with natural Dutch cocoa. Vintage Brawn™ is possibly the best-tasting naturally flavored and naturally sweetened protein powder on the market today. 
4. What does “two-stage” in Vintage Blast™ mean?
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.
5. If I take Vintage Blast™ in the evening, can it cause sleep issues?
The micro-encapsulated caffeine in Vintage Blast™ is active for up to 3 hours after you consume it. Just as with any caffeine product, take your personal tolerance into account and adjust the consumption time accordingly.
6. Will Vintage Burn™ help me get rid of belly fat?
It is scientifically proven that your body burns and adds fat everywhere in the body – including your belly. So, yes.
Will I feel Vintage Burn™ working?
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.
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Lean Muscle Stack
Lean Muscle Stack

Disclaimers & Warnings


CALIFORNIA PROP 65 WARNING: Consuming this product can expose you to chemicals including lead which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food.


ALLERGEN WARNING: This product was produced in a FDA inspected cGMP facility that also processes ingredients containing eggs, milk, tree nuts, peanuts, soybeans, shellfish and fish.


WARNING: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition. Do not take if seal is broken. Keep out of reach of children.


DISCLAIMER: The statements on this page have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Supplement Facts

Serving Size: 2 Capsules

Servings Per Container: 60


Amount Per Serving


Green Tea Leaf Extract

330 mg*


Green Coffee Bean Extract

270 mg*


Raspberry Ketones

200 mg*


Olive Leaf Extract 

160 mg*


Caffeine

150 mg*


Bacopa Leaf Extract

130 mg*


Garcinia Fruit Extract

100 mg*


Chrysin

100 mg*


Forskohlii Root Extract

60 mg*


* Daily Value not established.

Other Ingredients: Vegetable Capsule, Vegetable Stearate.