Casein: A Complete Guide for Buyers and Users in 2025


Casein is a versatile protein widely used in food, supplements, and industrial applications. Whether you're a buyer looking for high-quality Casein or a user exploring its benefits, this guide covers everything you need to know.


How to Find Reliable Casein from China in 2025


China is a leading supplier of Casein, offering competitive prices and high-quality products. To find reliable suppliers, consider the following:

  • Check supplier certifications (e.g., ISO, HACCP).
  • Request product samples for quality testing.
  • Read customer reviews and testimonials.
  • Verify production capacity and lead times.

What Buyers Should Know Before Buying Casein from China


Before purchasing Casein from China, buyers should be aware of:

  • Import regulations and customs duties.
  • Minimum order quantities (MOQs).
  • Shipping and logistics options.
  • Payment terms and methods.

Types of Casein


There are several types of Casein, each with unique properties:

  • Micellar Casein: Slow-digesting, ideal for sustained protein release.
  • Caseinate: Soluble in water, often used in food processing.
  • Hydrolyzed Casein: Pre-digested for faster absorption.

Functions and Features of Casein


Casein offers several key functions and features:

  • High protein content (80-90%).
  • Slow digestion rate, providing prolonged amino acid release.
  • Excellent emulsifying and thickening properties.
  • Wide pH stability, suitable for various applications.

Scenarios of Casein


Casein is used in diverse scenarios, including:

  • Sports Nutrition: Protein shakes and bars.
  • Food Industry: Cheese, yogurt, and baked goods.
  • Industrial Applications: Adhesives and coatings.

How to Choose Casein


When selecting Casein, consider:

  • Your specific application (e.g., food, supplements).
  • Protein content and purity.
  • Digestion rate (fast vs. slow).
  • Supplier reputation and product reviews.

Casein Q & A


Q: Is Casein suitable for lactose-intolerant individuals?
A: Some Casein products contain minimal lactose, but hydrolyzed versions are often better tolerated.


Q: How does Casein compare to whey protein?
A: Casein digests slowly, providing sustained protein release, while whey is fast-digesting.


Q: Can Casein be used in vegan products?
A: No, Casein is derived from milk and is not vegan-friendly.


Q: What is the shelf life of Casein?
A: Typically 12-24 months when stored in a cool, dry place.


Q: How do I test the quality of Casein?
A: Look for third-party lab testing results or request a certificate of analysis (COA).