Best Whey and Casein Protein Blend for Muscle Growth

Blending two types of protein for maximum gains

Protein supplements are one of the most popular fitness supplements on the market, and the choice usually comes down to whey or casein. However, what about finding a protein supplement that combines the two? When searching for the best whey and casein protein blend, athletes and fitness enthusiasts want more than just grams of protein. Digestion, muscle protein synthesis, ingredient quality, and taste all matter.

Our team at Generation Iron is going to break down the best whey and casein blend on the market.

Why a Whey + Casein Protein Blend Is Better Than Whey Alone

Scientific research shows that whey and casein together outperform 100% whey for stimulating muscle protein synthesis, meaning you can enhance your gains more with a blend of the two types of protein than just one. Whey provides rapid amino acid delivery, while casein releases amino acids slowly over several hours.

This combination helps:

• Increase lean muscle growth
• Reduce muscle breakdown
• Extend the anabolic window
• Improve post-workout recovery

Ideal Protein Timing Anytime

Because of its dual-digesting nature, Select Protein works perfectly:

• Post-workout
• Between meals
• Before bed
• As a meal replacement shake

You get immediate and long-lasting muscle support in every scoop.

Digestion-Friendly Protein with Low Lactose

Many protein powders can cause bloating or discomfort, especially whey isolates. A combination of whey and casein is designed to be easy on the stomach.

Why It Digests Better:

• Milk protein isolate is naturally low in lactose
• Less lactose per serving
• Compared to 13g lactose in one cup of milk

The Best Whey+Casein Blend: Select Protein by PEScience

Select Protein by PEScience is a high-quality whey and casein protein blend that delivers both fast- and slow-digesting proteins in one formula. Unlike standard whey-only powders, Select uses milk protein isolate as its primary ingredient, a costly and rarely used protein source that offers better digestion and sustained amino acid release.

Key Features:

• Whey + casein protein blend
• Milk protein isolate as the #1 ingredient
• Third-party tested for purity and potency
• Low-carb, gluten-free protein powder
• Extremely low lactose (~0.5g per serving)
• True-to-name, dessert-quality flavors

Industry-Leading Flavor Accuracy

One of the biggest reasons Select Protein stands out is taste. PEScience is known for producing some of the best-tasting protein powders available.

Every flavor tastes exactly like its name—no chalky texture or artificial aftertaste.

For example, the Cake Pop flavor delivers:

• Authentic yellow cake flavor
• Smooth vanilla icing finish
• Perfect for shakes, baking, and protein recipes

Select Protein isn’t just tolerable—it’s crave-worthy.

Third-Party Tested for Quality and Purity

PEScience has prioritized quality control since 2010. All ingredients and finished products are third-party tested to ensure:

• Ingredient purity
• Accurate protein content
• Consistent potency

You get a protein powder you can trust with every scoop.

Select Protein Nutrition Facts (Per 1 Scoop – 31.5g)

Calories	120
Protein	24g
Carbs	1g
Fat	1g
Sugar	1g
Flavors	Cake Pop, Chocolate Truffle, amongst others
Number Of Servings	27

Ingredients

Protein Sources:

• Milk Protein Isolate (casein + whey)
• Whey Protein Concentrate (80%)
• Leucine Peptides

Additional Ingredients:

• Natural and artificial flavors
• Salt
• Guar gum
• Sucralose
• Acesulfame potassium

Allergen Information: Contains milk and soy (lecithin)

Who Should Buy Select Protein?

Select Protein is ideal for:

• Bodybuilders and strength athletes focused on muscle growth
• Active individuals looking for better recovery
• Anyone with digestive issues from standard whey protein
• Busy professionals needing a high-quality protein supplement
• Fitness enthusiasts who value taste and quality
• Home cooks and bakers using protein in recipes

If you want the best whey and casein protein powder that delivers results and tastes incredible, Select Protein is the answer.

Final Verdict: Best Whey + Casein Protein Powder on the Market

With its research-backed whey + casein ratio, premium milk protein isolate, exceptional digestion, low lactose content, and unmatched flavor quality, Select Protein by PEScience sets the standard for blended protein powders.

For those serious about muscle growth, recovery, and daily nutrition, Select Protein is the best whey and casein protein blend available today.

Let us know what you think in the comments below. Also, be sure to follow Generation Iron on Facebook, Twitter, and Instagram.