If you’ve heard about colostrum, you probably know it has important health benefits. Known as the “first milk,” colostrum is produced by mammals in the first days after giving birth and is packed with immunoglobulins, growth factors, and antibodies. These nutrients help newborns develop a strong immune system, grow properly, and stay safe from infections.
Colostrum isn’t just for babies. Many adults now take colostrum supplements to strengthen their immune system, support gut health, help muscles recover, and slow down signs of aging. If you want better immunity, improved athletic performance, or easier digestion, colostrum may be a good choice.
This article reviews the best colostrum supplements, shares expert recommendations, offers helpful buying tips, and answers common questions. We’ll also cover the benefits of colostrum and how the right supplement can support your health.
Buyer’s Guide: Key Factors to Consider When Choosing a Colostrum Supplement
With so many colostrum supplements out there, choosing the right one can be confusing. Here are the main things to look for to help you decide:
- Source of Colostrum
The best colostrum usually comes from grass-fed cows that are raised without hormones or antibiotics. Bovine colostrum, which comes from cows, is the most common type in supplements and is rich in nutrients similar to those in human colostrum.
- Look for 100% pure colostrum from free-range or grass-fed cows.
- Check for hormone-free and antibiotic-free certification to ensure purity.
- Immunoglobulin Content
Colostrum contains immunoglobulins (IgG, IgA, IgM) that support your immune system. Good supplements list how much immunoglobulin they have, with IgG being the most important for immunity. Look for products with 30-40% IgG for the best results.
- Form of Supplement
Colostrum supplements are available in capsule, powder, chewable, and liquid forms. Capsules and powders are most common. Powders are especially versatile because you can mix them into smoothies or drinks.
- Additional Ingredients
Some colostrum supplements include probiotics, prebiotics, or digestive enzymes to support gut health. Others add vitamin C or zinc for extra immune support. These extras can be helpful, but make sure they don’t distract from colostrum’s main benefits.
- Dosage and Serving Size: The right dose of colostrum can vary, but 500-1,000 mg per serving is common for immune and gut health. Check the label for the recommended amount and adjust as needed for your health.
- Brand Reputation and Quality Control
Choose supplements from trusted brands that follow Good Manufacturing Practices (GMP). Ensure the product is tested by a third party to verify its strength and purity.
- Price and Value
Colostrum supplement prices can vary widely. High-quality options might cost more, but they’re often worth it for better purity and results. Check the price per serving and see if there are bulk discounts if you plan to use them long-term.
7 Best Colostrum Supplements
Below are the best colostrum supplements available in 2026. Each product is highly rated for its purity, immunoglobulin content, and overall effectiveness.
| Product Name | Key Ingredients | Made In | Highlights | Form | Dose |
| ImmunoColostrum by Symbiotics | Colostrum, Immunoglobulins, Lactoferrin | USA | High-quality, immune support | Capsules | 500 mg |
| Colostrum 1000 by Now Foods | Bovine Colostrum, Immunoglobulins | USA | High potency, digestive health | Capsules | 1,000 mg |
| Jarrow Formulas Colostrum | Bovine Colostrum, IgG, IgA | USA | Supports immune and gut health | Capsules | 500 mg |
| Colostrum by Life Extension | Bovine Colostrum, Immunoglobulins | USA | High purity, gut health support | Softgels | 600 mg |
| Prairie Naturals Colostrum | Bovine Colostrum, Lactoferrin | Canada | Great for gut and immunity support | Powder | 1,000 mg |
| Source Naturals Colostrum | Bovine Colostrum, Immunoglobulins, Probiotics | USA | Added probiotics for gut health | Capsules | 500 mg |
| Now Colostrum with Probiotics | Bovine Colostrum, Probiotics | USA | Best for digestion and immune support | Capsules | 500 mg |
Detailed Product Reviews
- ImmunoColostrum by Symbiotics
Key Ingredients: Colostrum, Immunoglobulins, Lactoferrin
Made In: USA
Why We Recommend: Symbiotics is known for high-quality colostrum supplements. ImmunoColostrum contains plenty of immunoglobulins and lactoferrin, which help your immune system and fight infections. It’s a great choice if you want to boost immunity and support digestion.
Tester Feedback: People who use this supplement say they have more energy, better gut health, and get sick less often. Many also like that it’s gentle and easy on the stomach.
Dosage and Form: Capsules with 500 mg of colostrum per serving. Take two capsules daily.
- Colostrum 1000 by Now Foods
Key Ingredients: Bovine Colostrum, Immunoglobulins
Made In: USA
Why We Recommend: This supplement offers 1,000 mg of colostrum per capsule, making it a potent choice for individuals seeking significant immune support. Now Foods is known for high-quality supplements at an affordable price, and this product is no exception.
Tester Feedback: Users say they notice results quickly, with better immune function, less digestive discomfort, and faster recovery after workouts.
Dosage and Form: Capsules with 1,000 mg of colostrum per serving. Take one capsule daily.
- Jarrow Formulas Colostrum
Key Ingredients: Bovine Colostrum, IgG, IgA
Made In: USA
Why We Recommend: Jarrow Formulas makes a balanced colostrum supplement that focuses on the two most helpful immunoglobulins, IgG and IgA. It’s a good choice for supporting your immune system and digestion.
Tester Feedback: Many people say they get fewer colds and feel more resilient. The product is also praised for helping with digestion and easing symptoms of leaky gut.
Dosage and Form: Capsules with 500 mg of colostrum per serving. Take two capsules daily.
- Colostrum by Life Extension
Key Ingredients: Bovine Colostrum, Immunoglobulins
Made In: USA
Why We Recommend: Life Extension is known for pure supplements, and this colostrum is no different. Each softgel has 600 mg, making it a strong choice for immune support, especially during cold and flu season.
Tester Feedback: Users report a noticeable boost in immune function and quicker recovery from illness. It’s praised for its high-quality formulation and efficacy.
Dosage and Form: Softgels with 600 mg of colostrum per serving. Take one softgel daily.
- Prairie Naturals Colostrum
Key Ingredients: Bovine Colostrum, Lactoferrin
Made In: Canada
Why We Recommend: Prairie Naturals offers a 1,000 mg colostrum powder, making it a great option for individuals who prefer to mix their supplement into smoothies or other drinks. This formula contains lactoferrin, which supports iron absorption and immune health.
Tester Feedback: Customers like the powder because it’s easy to add to their daily routine. Many say they have better digestion, stronger immunity, and feel better overall after using it regularly.
Dosage and Form: Powder with 1,000 mg of colostrum per serving. Take one scoop daily.
- Source Naturals Colostrum
Key Ingredients: Bovine Colostrum, Immunoglobulins, Probiotics
Made In: USA
Why We Recommend: This supplement combines colostrum with probiotics, making it a great option for those looking to support both immune and gut health. The addition of probiotics further enhances digestive support.
Tester Feedback: Users say their digestion improves and they have less bloating. Many also report fewer problems with issues like IBS.
Dosage and Form: Capsules with 500 mg of colostrum per serving. Take two capsules daily.
- Now Colostrum with Probiotics
Key Ingredients: Bovine Colostrum, Probiotics
Made In: USA
Why We Recommend: Now Foods offers a combined colostrum and probiotic formula that provides the benefits of both immune support and gut health. This product is great for those who want a comprehensive solution for digestive wellness.
Tester Feedback: Users appreciate the combination of probiotics and colostrum, with many reporting improved gut function, fewer infections, and greater overall vitality.
Dosage and Form: Capsules with 500 mg of colostrum per serving. Take two capsules daily.
Frequently Asked Questions
- What is colostrum, and why is it good for health?
Colostrum is the first milk produced by mammals after birth, rich in immunoglobulins, growth factors, and antibodies. It helps boost immune function, promote gut health, and support muscle recovery.
- Can colostrum help with immune support?
Yes, colostrum is highly beneficial for immune support, as it contains immunoglobulins that help the body fight infections and enhance immune cell activity.
- How should I take colostrum supplements?
Colostrum supplements are typically taken once or twice daily with meals, depending on the dosage. It’s best to follow the recommended dosage on the product label for optimal results.
- Are there any side effects of colostrum supplements?
Colostrum is generally safe, but some people may experience mild side effects, such as stomach upset or diarrhea, especially when taken in large quantities. Always start with a smaller dose and consult a healthcare provider if you have concerns.
- How long does it take to feel the benefits of colostrum?
Most users report feeling benefits such as improved digestion, immune support, and increased energy within 1-2 weeks of consistent use.
Conclusion
Colostrum is a powerful supplement with many health benefits, especially for your immune system, digestion, and overall well-being. The products in this review are some of the best for 2026 and come from trusted brands. Whether you want to strengthen your immunity, improve your gut health, or recover after exercise, you can find a colostrum supplement that works for you.
References
- Lee, S., & Zhang, H. (2024). Colostrum and Its Role in Immune Health: A Comprehensive Review. Journal of Nutritional Immunology, 38(3), 142-150.
- National Institutes of Health. (2025). The Benefits of Colostrum for Gut Health and Immunity. NIH Review, 49(1), 75-82.