Skip to product information
1 of 1

Grass-Fed Colostrum with Lactoferrin and Beta-Glucan

Grass-Fed Colostrum with Lactoferrin and Beta-Glucan

*Subscribe & Save Save 25%
1 Bio-Avail Colostrum+ pouch + 1 Free Bio-Avail Omega+ pouch
$69.99
Free Shiping
3 Bio-Avail Colostrum+ pouches + 1 Free Bio-Avail Omega+ pouch
$199.99
Free Shipping
6 Bio-Avail Colostrum+ pouches + 1 Free Bio-Avail Omega+ pouch
$199.40
Free Shiping
Modify, Skip, or Cancel Anytime
  • ✅ 25% off all orders
  • ✅ Free Shipping Always
  • ✅ Guaranteed Delivery
  • ✅ Prompt VIP Support
  • ✅ Early Access to Sales
  • ✅ Free Gifts

Get the benefits of three powerful gut and immune health nutrients in a single product!✓ 2.5 grams of cold-processed colostrum plus 200 mg of beta-glucan and 100 mg of lactoferrin
✓ Fortify your immune defenses and reduce hyperactivity
✓ Nourish your microbiome and protect your gut barrier
✓ Revitalize your health from the inside out

  • Free Shipping
  • 60-day Returns
View full details
Free Shipping

Order today, receive tomorrow

Price-match guarantee

Safe money when ordering with us

Hassle-free exchange

Receive a slip for exchanges

5.0 Google Reviews

Customer satisfaction #1 priority

Free Shipping

Order today, receive tomorrow

Price-match guarantee

Safe money when ordering with us

Hassle-free exchange

Receive a slip for exchanges

5.0 Google Reviews

Customer satisfaction #1 priority

Free Shipping

Order today, receive tomorrow

Price-match guarantee

Safe money when ordering with us

Hassle-free exchange

Receive a slip for exchanges

5.0 Google Reviews

Customer satisfaction #1 priority

Choose Your Bio-Avail Colostrum+ Package

1 Bio-Avail Colostrum+ pouch + 1 Free Bio-Avail Omega+ pouch
Free Shiping
Grass-Fed Colostrum with Lactoferrin and Beta-Glucan
$69.99
3 Bio-Avail Colostrum+ pouches + 1 Free Bio-Avail Omega+ pouch
Free Shipping
Grass-Fed Colostrum with Lactoferrin and Beta-Glucan
$199.99
6 Bio-Avail Colostrum+ pouches + 1 Free Bio-Avail Omega+ pouch
Free Shiping
Grass-Fed Colostrum with Lactoferrin and Beta-Glucan
$199.40 $288.99

Introducing the first colostrum, lactoferrin, and beta-glucan product—all in one pouch!

Bio-Avail Colostrum+ is the first and only product on the market that combines cold-processed colostrum from grass-fed cows with two other “immune health superstars”: lactoferrin and beta-glucan.

Unlike any other colostrum supplements, which only provide colostrum, Bio-Avail Colostrum includes 100 mg of lactoferrin and 200 mg of beta-glucan, 2 other powerful nutrients that support gut and immune health.

Bio-Avail Colostrum+ is the first and only supplement to combine all 3 of these ingredients in a single product.

More than double the colostrum

Bio-Avail Colostrum+ contains 2.5 grams of colostrum vs. 1 gram found in many products. We source our colostrum from 100% pasture-raised cows never given hormones, antibiotics, or GMOs.

Contains 200 mg of beta-glucan

Bio-Avail Colostrum+ has 200 mg of beta-glucan (1,3/1,6) as Wellmune®.Beta-glucans prime and train our immune cells, helping them to respond more effectively to threats. They also help balance and regulate immune function.

Contains 100 mg of lactoferrin

Bio-Avail Colostrum+ includes 100 mg of lactoferrin (as Bioferrin®). Lactoferrin helps defend against microbial invaders, promotes gut health, and enhances the immune system’s effectiveness.

More than double the colostrum

Bio-Avail Colostrum+ contains 2.5 grams of colostrum vs. 1 gram found in many products. We source our colostrum from 100% pasture-raised cows never given hormones, antibiotics, or GMOs.

Contains 200 mg of beta-glucan

Bio-Avail Colostrum+ has 200 mg of beta-glucan (1,3/1,6) as Wellmune®.Beta-glucans prime and train our immune cells, helping them to respond more effectively to threats. They also help balance and regulate immune function.

Contains 100 mg of lactoferrin

Bio-Avail Colostrum+ includes 100 mg of lactoferrin (as Bioferrin®). Lactoferrin helps defend against microbial invaders, promotes gut health, and enhances the immune system’s effectiveness.

More than double the colostrum

Bio-Avail Colostrum+ contains 2.5 grams of colostrum vs. 1 gram found in many products. We source our colostrum from 100% pasture-raised cows never given hormones, antibiotics, or GMOs.

Contains 200 mg of beta-glucan

Bio-Avail Colostrum+ has 200 mg of beta-glucan (1,3/1,6) as Wellmune®.Beta-glucans prime and train our immune cells, helping them to respond more effectively to threats. They also help balance and regulate immune function.

Contains 100 mg of lactoferrin

Bio-Avail Colostrum+ includes 100 mg of lactoferrin (as Bioferrin®). Lactoferrin helps defend against microbial invaders, promotes gut health, and enhances the immune system’s effectiveness.

Formulated to Rebuild Gut and Immune Health

From processed food to environmental toxins to chronic stress, the modern world makes health hard. Bio-Avail Colostrum+ was formulated to rebuild your gut health, fortify and strengthen your immune defenses, and restore immune balance. Supporting the “gut-immune axis” is one of the most important things we can do to improve our overall health and extend our lifespan. Bio-Avail Colostrum+ promotes enhanced vitality, a more youthful and radiant appearance, and greater protection against the challenges of daily life.

Here are some benefits you can expect from this one-of-a-kind product:

✓ Strengthens immune defense. Seal your mucosal barriers to keep antigens out. Protect against pathogens, allergens, toxins, and other foreign invaders.

✓ Modulates immune response. Reduce immune hypersensitivity and over-reactivity. Fine-tune your immune system and restore a healthy balance.

✓ Nourishes the microbiome. Feed your beneficial bacteria and reduce harmful microbes. Support your gut flora with prebiotics, immune factors, and beta-glucans. 

✓ Promotes vitality from within. Transform your health from the inside out. Enjoy radiant skin, hair, and nails and more energy and vitality.

Bio-Avail Colostrum+ contains:

GRASS-FED BOVINE COLOSTRUM
2.5 grams
 of cold-processed colostrum from grass-fed cows never given antibiotics, hormones, or genetically modified organisms (GMOs). Delivers 2.5 times more colostrum per serving than most brands. 

LACTOFERRIN (BIOFERRIN®)
100 mg
 of lactoferrin (as Bioferrin®). Lactoferrin helps defend against microbial invaders, promotes gut health, and enhances the immune system’s effectiveness.

BETA-GLUCAN (WELLMUNE®)
200 mg
 of beta-glucan (1,3/1,6) as Wellmune®. Beta-glucans are “biological response modifiers” that strengthen and balance the immune system while reducing hypersensitivity.

Bio-Avail Colostrum+ gives you 3 powerful immune-supporting nutrients in a single product—at a significantly lower price than you’d pay for them separately.

Adapt Naturals Bio-Avail Colostrum+

Bio-Avail Colostrum+ is the most complete, advanced colostrum formula on the market. No other product combines the benefits of colostrum, lactoferrin and beta-glucan

  • Contains 2.5 grams of cold-processed colostrum from grass-fed cows
  • 100 mg of lactoferrin (as Bioferrin®).
  • 200 mg of beta-glucan (1,3/1,6 as Wellmune®)
  • Formulated by globally-renowned Functional Medicine clinician Chris Kresser
  • Made without gluten and GMOs
  • Manufactured in the US in a certified GMP facility

Frequent colds, flu, or other infections

Premature wrinkles, dryness, or other skin issues

Hair loss or brittle and dry hair and nails

Imbalanced or hyperactive immune system

Gas, bloating, or other digestive problems

Low energy and fatigue

Frequent colds, flu, or other infections

Premature wrinkles, dryness, or other skin issues

Hair loss or brittle and dry hair and nails

Imbalanced or hyperactive immune system

Gas, bloating, or other digestive problems

Low energy and fatigue

Frequent colds, flu, or other infections

Premature wrinkles, dryness, or other skin issues

Hair loss or brittle and dry hair and nails

Imbalanced or hyperactive immune system

Gas, bloating, or other digestive problems

Low energy and fatigue

What You'll Feel Using Bio-Avail Colostrum+

  • Stronger immune defenses
  • Fewer sick days and faster recovery from illness
  • A more balanced immune response
  • Smoother digestion and elimination
  • More youthful and radiant skin, hair, and nails
  • Greater vitality and overall health

⭐⭐⭐⭐⭐"I'm excited about Adapt Naturals and Bio-Avail Multi. Chris is a leading clinician, educator, and researcher in the Functional Medicine space. I've learned a lot from him about nutrition and supplements over the years, and I know his products are fueled by high-quality, evidence-based ingredients you can trust."

Dr. Mark Hyman MD

14-time New York Times best selling author and founder of the Cleveland Clinic Center for Functional Medicine

⭐⭐⭐⭐⭐"Chris Kresser is one of the sharpest minds in the functional / integrative medicine space. I have reached out to Chris many times when working to unravel my own health journey and his insights have always been incredible. Given all that, I'm super excited for the release of Adapt Naturals line of supplements, especially Bio-Avail Multi. Chris and I are aligned in that we believe the bulk of our nutrition should come from whole, minimally processed foods, but we also recognize that the right supplement, at the right time can 'change everything.'"

Robb Wolf

Former research biochemist and 2-time New York Times bestselling author of The Paleo Solution and Wired To Eat.

⭐⭐⭐⭐⭐"I can't think of a better person to formulate supplements than Chris Kresser. I trust his ability to skillfully combine ancestral wisdom with modern science and cutting-edge research. Taken together, the products offer a well-rounded and complete way to boost your nutritional status. I am excited about this high-quality, comprehensive new product line - I strongly recommend it!"

Dr. Akil Palanisamy MD

Harvard-trained physician, author, speaker, and holistic medicine expert in integrative and functional medicine

⭐⭐⭐⭐⭐"I'm excited about Adapt Naturals and Bio-Avail Multi. Chris is a leading clinician, educator, and researcher in the Functional Medicine space. I've learned a lot from him about nutrition and supplements over the years, and I know his products are fueled by high-quality, evidence-based ingredients you can trust."

Dr. Mark Hyman MD

14-time New York Times best selling author and founder of the Cleveland Clinic Center for Functional Medicine

⭐⭐⭐⭐⭐"Chris Kresser is one of the sharpest minds in the functional / integrative medicine space. I have reached out to Chris many times when working to unravel my own health journey and his insights have always been incredible. Given all that, I'm super excited for the release of Adapt Naturals line of supplements, especially Bio-Avail Multi. Chris and I are aligned in that we believe the bulk of our nutrition should come from whole, minimally processed foods, but we also recognize that the right supplement, at the right time can 'change everything.'"

Robb Wolf

Former research biochemist and 2-time New York Times bestselling author of The Paleo Solution and Wired To Eat.

⭐⭐⭐⭐⭐"I can't think of a better person to formulate supplements than Chris Kresser. I trust his ability to skillfully combine ancestral wisdom with modern science and cutting-edge research. Taken together, the products offer a well-rounded and complete way to boost your nutritional status. I am excited about this high-quality, comprehensive new product line - I strongly recommend it!"

Dr. Akil Palanisamy MD

Harvard-trained physician, author, speaker, and holistic medicine expert in integrative and functional medicine

⭐⭐⭐⭐⭐"I'm excited about Adapt Naturals and Bio-Avail Multi. Chris is a leading clinician, educator, and researcher in the Functional Medicine space. I've learned a lot from him about nutrition and supplements over the years, and I know his products are fueled by high-quality, evidence-based ingredients you can trust."

Dr. Mark Hyman MD

14-time New York Times best selling author and founder of the Cleveland Clinic Center for Functional Medicine

⭐⭐⭐⭐⭐"Chris Kresser is one of the sharpest minds in the functional / integrative medicine space. I have reached out to Chris many times when working to unravel my own health journey and his insights have always been incredible. Given all that, I'm super excited for the release of Adapt Naturals line of supplements, especially Bio-Avail Multi. Chris and I are aligned in that we believe the bulk of our nutrition should come from whole, minimally processed foods, but we also recognize that the right supplement, at the right time can 'change everything.'"

Robb Wolf

Former research biochemist and 2-time New York Times bestselling author of The Paleo Solution and Wired To Eat.

⭐⭐⭐⭐⭐"I can't think of a better person to formulate supplements than Chris Kresser. I trust his ability to skillfully combine ancestral wisdom with modern science and cutting-edge research. Taken together, the products offer a well-rounded and complete way to boost your nutritional status. I am excited about this high-quality, comprehensive new product line - I strongly recommend it!"

Dr. Akil Palanisamy MD

Harvard-trained physician, author, speaker, and holistic medicine expert in integrative and functional medicine

About your free Bio-Avail Omega+

The power of fish oil, curcumin, and black seed oil in a single product!

Bio-Avail Omega+ combines the purest and freshest fish oil with the most bioavailable forms of curcumin and black seed oil, so you can get the incredible benefits of these nutrients in a single, two soft-gel serving.

Bio-Avail Omega+ is the first and only product on the market that combines ultra-pure fish oil with the most bioavailable forms of curcumin (Novasol) and black seed oil (ThymoQuin).

It’s like taking three supplements in one product!

Your Questions Answered

What’s the best way to take Bio-Avail Colostrum+?

We suggest mixing it with 6-8 ounces of room-temperature water and drinking it on an empty stomach, i.e., 30 minutes before or 2 hours after a meal. If you cannot take it on an empty stomach, you’ll still get good results taking it with food.

Where is your colostrum sourced?

We source our colostrum from grass-fed, pasture-raised farms across the US. It’s free from pesticides, heavy metals, antibiotics, and hormones. And it’s cold-processed to keep the fragile immunoglobulins and other nutrients intact.

I’m lactose intolerant. Can I take Bio-Avail Colostrum+?

While colostrum does contain a minimal amount of lactose, it is generally well-tolerated by people who are lactose intolerant. We suggest that people who are lactose intolerant speak with their healthcare provider before supplementing with colostrum.

Does Bio-Avail Colostrum+ contain casein?

Yes, all dairy products (including colostrum) contain casein. We do not recommend taking Bio-Avail Colostrum+ if you have a casein sensitivity or allergy. 

Am I depriving newborn calves of colostrum if I take this product?

No. The pasture-based farms we source colostrum from understand the importance of colostrum to developing calves. The calves are fed 2–4 liters of colostrum shortly after birth. New mothers often produce more than 12 liters, so the farmers can harvest this excess colostrum without harming the calves. 

How much lactoferrin is in Bio-Avail Colostrum+?

Lactoferrin is naturally present in colostrum at 0.3-0.5%. This equals 3-5 mg per gram, or 7.5-12.5 mg per our 2.5 gram serving. However, Bio-Avail Colostrum+ also includes 100 mg of pure lactoferrin—yielding a total of 107.5 to 112.5 mg of lactoferrin per serving. This is far higher than other colostrum products that do not contain additional lactoferrin.