Casein Protein Powder

Promix casein protein powder is a slow digesting protein and provides a sustained release of amino acids over time, rather than quick absorption. For this reason, micellar casein is known as "The... Read more

Promix casein protein powder is a slow digesting protein and provides a sustained release of amino acids over time, rather than quick absorption. For this reason, micellar casein is known as "The Before Bed Protein." Promix utilizes proprietary, industry-leading filtration techniques, superior sourcing, and 3rd-party quality testing to ensure our customers receive the best casein protein powder on the market. Our product offers the full spectrum of casein proteins - Alpha s2, Beta, and Kappa-casein - and is always free of soy, gluten, GMOs, and synthetic additives of any kind. Choose casein protein powder from Promix Nutrition for real ingredients and real results.

Recommended Recommended based on your Protein Calculator results. Re-run Protein Calculator?
Chocolate Casein Protein Powder
solid organic chocolate shake

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Recommended Recommended based on your Protein Calculator results. Re-run Protein Calculator?
Casein Protein Powder
natural, smooth, simple

from $44

Quick Shop
In Stock: Out of Stock

No Glyscophosphate. No Gums. No Gluten. No Soy. No Antibiotics. No Hormones. No GMOs. No Fillers. No Artificial Anything. No Glyscophosphate. No Gums. No Gluten. No Soy. No Antibiotics. No Hormones. No GMOs. No Fillers. No Artificial Anything. No Glyscophosphate. No Gums. No Gluten. No Soy. No Antibiotics. No Hormones. No GMOs. No Fillers. No Artificial Anything. No Glyscophosphate. No Gums. No Gluten. No Soy. No Antibiotics. No Hormones. No GMOs. No Fillers. No Artificial Anything.

Measured Success

Detail oriented beyond the basics

100% GMP certified facilities
and batch testing

97% Plastic-free
packaging

94% of ingredients sourced
from North America

1% of sales are committed
to 1% for the Planet

Promix Ingredients

90 Day Guarantee

We stand by the quality of our products. If you are not satisfied with any purchase from Promix, contact us within 90 days for a full refund.