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Grass-Fed Casein Protein

Grass-fed micellar casein protein powder delivers sustained-release amino acids, enhancing muscle growth, recovery, and promoting satiety.

No Artificial Sweeteners

Gluten-Free and Non-GMO

No Artificial Coloring

No Artificial Preservatives

1 Flavor Available:

One-Time Purchase

$59.99

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$53.99

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Third-Party Testing

We believe trust is earned through transparency. That’s why we provide full access to our third-party test results, so you can feel confident in what you’re taking. View all third-party tests.

View product purity test results (Certificate of Analysis)

Casein is the ideal evening protein powder for gym-goers, bodybuilders, and active individuals. Transparent Labs Grass-Fed Casein protein powder features 25 grams of instantized micellar casein from 100% grass-fed cattle in every serving. Naturally flavored and sweetened with stevia, this instantized casein protein powder is a treat for the tastebuds, mixes easily, and contains no added sugars, fillers, or artificial junk.

Orders in the US over $99 ship free.

Once your order has shipped out from our fulfillment center, you will receive a Shipping Confirmation email. If you selected a tracked shipping method, you will receive your tracking information, along with the necessary steps to track your order, within this email. Please note, orders are generally fulfilled same day or next business day.

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45 Day Satisfaction Guarantee

If you are not satisfied with your product, we will offer you a full refund or store credit for the value of the item within 45 days of delivery.

Click here for the full refund policy »

why use Grass-Fed Casein Protein?

Micellar casein is a sustained-release protein source that supports muscle recovery, growth, and appetite control for upwards of eight hours.

Support Overnight Muscle Growth & Recovery

Slow-digesting casein protein provides muscles with essential amino acids for extended periods, significantly enhancing recovery overnight.

Long-Lasting Satiety

Micellar casein promotes prolonged fullness and appetite control, ideal for overnight use or prior to fasting periods.

Complete Amino Acid Profile

High-quality micellar casein protein is rich in essential amino acids, including leucine, essential for muscle protein synthesis and growth.

Clean, Grass-Fed Formula

Grass-fed, hormone-free protein source without artificial ingredients, fillers, or GMOs, supporting a healthy, clean lifestyle.

29.7 g

Casein is the protein counterpart to whey in dairy milk. In micellar form, casein digests slowly and steadily releases amino acids into the bloodstream, supporting overnight muscle recovery and satiety.

Complete Your Stack

Pair Grass-Fed Casein Protein with these products for a complete foundational stack.

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Every Ingredient Matters To Make Every Effort Count.

Shop Clean Supplements

Amazing

This Casein tastes great its clean and filling. Nothing else like this on the market!

Mom's Brownies

Tastes like the brownies Mom used to bake.

Great but a tiny bit too sweet for me

Easy to mix, generally great taste, personally i would only take half the stevia

Great Evening Shake

Great taste. Easy to prepare. I use as my evening protein shake for its easy assimilation pre-bedtime.

I'm Picky!

I don't like overly sweet, I don't like artificial tasting, I don't like chalky tasting. THIS IS NONE OF THAT!! I use it with milk to make pudding for a sweet after dinner treat and honestly I can't tell the difference from pudding you buy from a boxed mix. It sure is an easy way to get that extra protein at the end of the day!

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How to Use

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Step 1 – Add Powder

Combine one scoop of Transparent Labs Grass-Fed Casein protein powder with 8-12 oz of water, almond milk, or your favorite beverage in a shaker cup.

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Step 2 - Shake Vigorously

Mix the powder and liquid by shaking vigorously until fully dissolved.

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Step 3 – Consume Daily

Drink daily, ideally 30-60 minutes before bedtime, or as needed to help meet your protein requirements and support muscle recovery.

Frequently Asked
Questions

How is casein different from whey?

Micellar casein digests much more slowly than whey, providing a steady release of amino acids for hours. It’s especially great before bed to support overnight recovery and help keep you feeling full longer.

Can I use micellar casein during the day?

Definitely. It’s a solid choice anytime you need sustained protein and prolonged fullness—like between meals, during busy days, or when you know you’ll go hours without eating.

Will casein upset my stomach?

Most people tolerate micellar casein well, especially when it’s high-quality. If you’re sensitive to dairy, just pay attention to how your body responds.

Does it mix well?

Yes! While casein naturally has a thicker texture than whey, our formula mixes smoothly with water or milk—no clumps, no grit.

How is casein different from whey?

Micellar casein digests much more slowly than whey, providing a steady release of amino acids for hours. It’s especially great before bed to support overnight recovery and help keep you feeling full longer.

Can I use micellar casein during the day?

Definitely. It’s a solid choice anytime you need sustained protein and prolonged fullness—like between meals, during busy days, or when you know you’ll go hours without eating.

Will casein upset my stomach?

Most people tolerate micellar casein well, especially when it’s high-quality. If you’re sensitive to dairy, just pay attention to how your body responds.