In contrast to many casein protein powders that use inferior calcium caseinate and grain-fed cattle sources, Transparent Labs Grass-Fed Casein is made with pure micellar casein derived from grass-fed cattle. This is the industry’s cleanest casein protein powder, providing a sustained-release profile of essential amino acids to keep you anabolic and anti-catabolic for up to 8 hours.

Micellar casein is the major type of protein in dairy milk, comprising roughly 70% of all the protein content (1). A casein micelle is a colloidal particle that transports insoluble casein calcium-phosphate complexes in a liquid through the digestive tract where they are emulsified with gastric juices and slowly dispersed into the bloodstream. Hence, grass-fed casein is also an exceptional source of both calcium and phosphorus.

Due to the slower digestive rate of casein protein, many gym-goers and athletes opt for micellar casein as a nighttime protein powder to support muscle growth and recovery during sleep. Our grass-fed casein protein is also gentle on the stomach and tastes delicious, being 100% naturally flavored and sweetened with stevia. No bloating, gas, or stomach cramps like you might experience from low-quality casein protein powders that are loaded with cheap fillers and artificial sweeteners.

Serving Size: 1 Scoop (35g)
Serving Per Container: 30

Q: When will my order be shipped out?

A: All orders ship out the following business day. 

Q: What does “100% Grass-Fed” actually mean?

A: This means that the whey comes directly from cows that have been raised on grass-only diets, free from steroids and hormones.

Q: Will my protein drink lose potency if I pre-mix ahead of time?

A: Not necessary – but, it will spoil if it’s not stored properly or used too long after it’s prepared. For best results, mix-up no more than a day’s worth of protein at a time, store it in the refrigerator (in a covered container), and use within 2 days of preparation.

Q: I don't live in the United States; can I still buy ProteinSeries 100% Grass-Fed Casein?

A: Yes. Our fulfillment center allows us to ship worldwide. Standard shipping for international orders typically takes 10-14 business days to arrive. 

Q: Can I mix ProteinSeries 100% Grass-Fed Casein with milk?        

A: Yes, Protein Series 100% Grass-Fed Casein can be mixed with milk, water, and even your morning coffee. Using milk provides a thicker, creamier taste while water is thinner and more versatile.

Q: Does Transparent Labs ship to my Country?

A: Transparent Labs ships Worldwide, except to the following countries, unfortunately, due to increasingly high fraudulent activity; Albania, Algeria, Lithuania, Macedonia, Romania, Russia, Tunisia, & Ukraine.