3 best muscle building powder

• BUILD & PRESERVE LEAN MUSCLE: Keep feeding your muscles, even during limited activity. Vintage Build is the essential 3-in-1 natural muscle building and preserving supplement. Its unique formula delivers a proven trio of muscle building ingredients in the form of branched chain amino acids (BCAA), creatine, and L-glutamine in a flavored powder that mixes easily and tastes great with water or your favorite protein shake.
• TESTED AND TRUSTED: Third-party tested post workout supplement made exclusively with premium ingredients, including branched chain amino acids (BCAA), creatine monohydrate, and L-glutamine. Suitable for men and women looking for lean muscle building power, not bulk or a weight gainer. Vintage Build is a great supplement to your pre-workout and a healthy diet.
• GUARANTEED RESULTS OR YOUR MONEY BACK: Old School Labs supplements never compromise on quality and always include clear and complete supplement facts without any "proprietary blends." We stand by our products 100%. If you are not completely satisfied with any OSL product, we will help you resolve your concern or provide a full refund.
• BUNDLE AND SAVE TODAY: Get 10% OFF any 2 products with code "OSLBUNDLE10" or 15% OFF any 4 products with code "OSLBUNDLE15".
• OSL HERITAGE: Old School Labs, California; Supplements That Make Sense, 40 Years in the Making. Only one thing has ever mattered to OSL: our customers. Before becoming a best-selling national brand with thousands of loyal customers and followers, this was our priority. That will never change. Our team of experts are available by email or social media to answer questions regarding the best way to use a product. Our products are sold on Amazon.com, proudly formulated in California, made in U.S.A.

Product description

Feeling fatigued and unable to make it through the day? Protein can help with that.



1. Protein provides the body with fuel to repair and build muscle tissues.

2. Protein has the building blocks necessary to repair your body’s muscles after a workout.

Feeling fatigued and unable to make it through the day? Protein can help with that.



1. Protein provides the body with fuel to repair and build muscle tissues.

2. Protein has the building blocks necessary to repair your body’s muscles after a workout.

3. Protein takes longer than carbohydrates to break down in your body so you are hungry less often and you have a long-lasting energy to sustain you through the most active parts of your day.



Derived from the Greek word "prota", meaning of primary importance, protein is an important building block that aids in the growth, maintenance, and repair of muscle tissue. Essential parts of organisms, proteins participate in every process within cells. Proteins are vital to the metabolic process. The unique blend of rapidly assimilated proteins and slow release proteins make Building Blocks Protein ideal for all the body's protein needs. Rich in naturally-occurring branched chain amino acids (the building blocks of all protein), and providing a comprehensive blend of vitamins and essential minerals, Building Blocks Protein aids in the repair, growth, and development of lean muscle tissue. For all fitness goals, protein is the building block of muscle. Building Blocks Protein will help both men and women reach their optimal levels of complete fitness. This easily mixed, smooth and creamy formula comes in delicious chocolate and vanilla. This formula is gluten free!



Key Ingredients



1. Whey Protein

2. Vitamin A

3. Vitamin B Complex (Thiamin, Riboflavin, Niacin, Pantothenic Acid, Pyridoxine, Cyanocobalamin, Biotin, and Folic Acid)

4. Vitamin D

5. Biotin

6. Calcium

7. Chromium

• EASY TO MIX: PROTEIN POWDER is the Building Blocks to build and repair lean muscle in tasty, drinkable shakes. Protein provides the body with fuel to help repair and build muscle tissues.
• BCAAs: Branched Chain Amino Acids COMPLEX helps with muscle-building, fat-burning, or weight loss for women or men fitness and workout programs. Whey Protein furnishes the body with high levels of essentials amino acids and branched chain amino acids
• WHEY PROTEIN ISOLATE AND EGG WHITE COMPLEX: Egg Albumin, commonly known as egg whites for maximum absorption. Considered a ‘perfect protein’ because it contains all the building blocks of life (protein, minerals, vitamins & good cholesterol).
• TIME RELEASED FORMULA: Protein takes longer than carbohydrates to break down in your body so you may be hungry less often and can lead to having long-lasting energy to sustain you through the most active parts of your day.
• PROTEIN POWDER WHEY: Can be used as a weight loss supplement, protein powder, or as a meal replacement shake. Can be used in conjunction with or as an alternative to SRX Rx Meal Protein Powder

User questions & answers

• Packaging May Vary: We've upgraded the look of our Authentic Mass, while keeping the same high-quality formula you expect from Jacked Factory.
• Scientifically Formulated Mass Gainer Supplement: Authentic Mass is the most delicious and elite mass building supplement available, featuring a comprehensive blend of bioavailable whey protein, MCTs (as goMCT), and clean complex carb sources. These ingredients create the ideal anabolic environment by replenishing muscle glycogen, igniting protein synthesis, and augmenting ATP production. Best of all, Authentic Mass is easy on the stomach and tastes absolutely delicious mixed with water or milk
• Perfect Ratio of Complex Carbohydrates and Quality Protein: Unlike traditional mass gainer formulas, Authentic Mass contains absolutely no added sugars or cheap “creamers”. Instead, Authentic Mass provides over 50 grams of clean carbs from slow, medium, and fast-digesting whole-food sources, including innovative Carb10 Pea Starch, sweet potato powder, and oat bran fiber. Each serving also packs 36 g of muscle-building whey protein and healthy fats from goMCT medium-chain triglycerides.
• Made with Clean Ingredients That Fuel Lean Muscle Growth: Authentic Mass is designed with premium ingredients that help you recover quicker, increase strength, and pack on lean muscle mass! Our delicious mass gainer powder features clean complex carb sources, elite whey protein, healthy fats, and essential digestive enzymes to optimize nutrient absorption. Even better, Authentic Mass is easy on the stomach and won’t leave you feeling bloated or gassy.
• Crafted in the USA in a cGMP Facility: Like all Jacked Factory products, Authentic Mass contains only premium ingredients in doses backed by science and research. Each bottle of Authentic Mass is produced in a triple-certified, state-of-the-art facility in the USA and rigorously tested before being put on the shelf. Rest assured, Authentic Mass is a pure, clean and delicious weight gainer that you can feel good about drinking.

User questions & answers