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Grass-Fed Colostrum with Lactoferrin and Beta-Glucan

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
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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.

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What makes Bio-Avail Colostrum+ stand out?

  • 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. 

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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

Signs You Need Bio-Avail Colostrum+

Frequent colds, flu, or other infections

Premature wrinkles, dryness, or other skin issues

Imbalanced or hyperactive immune system

Hair loss or brittle and dry hair and nails

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

Meet Chris Kresser, your
Trusted Health & Wellness Guide

Founder & Functional Medicine Clinician

  • Globally renowned expert with over 15 years of experience
  • Dedicated to helping people improve their health by addressing modern challenges and nutrient gaps

Author & Educator

  • Treated thousands of patients
  • Trained more than 2,000 healthcare professionals
  • Gained valuable insights into functional medicine and nutrition

  • "I'm excited about Adapt Naturals and. 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

    14x NY Times Bestselling Author

  • "I have seen firsthand and trust Chris Kresser's expertise with my life—I'm confident you will too."

    Dr. Sara Gottfried

    NY Times Bestselling Author

  • "Chris Kresser's Adapt Naturals line reflects our belief: the right supplement at the right time can 'change everything.'"

    Robb Wolf

    NY Times Bestselling Author

Try Bio-Avail Colostrum+ for 60 Days and Get a FREE Pouch of Bio-Avail Omega+

30 day supply delivered monthly

What You'll Get:

✓ 30-Day Supply Bio-Avail Colostrum+—10% Off Every Order + Free Bio-Avail Omega+ With Your First Subscription Order
✓ FREE Pouch of Bio-Avail Omega+—$61.97 Value
✓ 60-Day Money-Back Guarantee—Try It Risk-Free

$131.91 USD $62.95 USD
Save $68.96 (53%)

Charged every 30 days. Change or cancel anytime.

Try Bio-Avail Colostrum+ Risk Free

  • 60-day Returns
  • Easy cancellation

"Adapt Naturals is not just higher quality, it's practically in a different category entirely.”

Armen A.

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!

Get Bio-Avail Colostrum+ now

60-Day Money Back Guarantee

60-Day Money Back Guarantee

We're confident you'll love our products, but if you're not completely satisfied, we offer a 60-day, 100% money-back guarantee on all purchases. Simply contact us for a full refund, no questions asked. Buy with confidence knowing you're covered by our guarantee.

The Adapt Naturals Standard

The Adapt Naturals Standard

In our increasingly toxic world, the last thing you want to worry about is a lot of artificial junk in your supplements. Adapt Naturals supplements are made with the cleanest possible ingredients, without gluten or GMOs. Our products are manufactured in a U.S. facility that meets the NSF’s rigorous GMP regulatory standards.

Third-Party Lab-Tested with Transparent Results

Third-Party Lab-Tested with Transparent Results

We conduct third-party testing on all our products to verify their purity, potency, and safety. Most importantly, we transparently share these results with our customers by posting Certificates of Analysis (COAs) and test results directly on our website. We want you to have full confidence that you’re getting exactly what you think you are with each purchase.

See Test Results

Your Questions Answered

You can mix Bio-Avail Colostrum+ into both foods and beverages! Recent research suggests that for generally healthy individuals, taking colostrum with food does not significantly impact its absorption or benefits. Feel free to stir it into yogurt, oatmeal, smoothies, or other foods and drinks.

However, we advise against mixing Bio-Avail Colostrum+ into hot beverages like coffee or tea, as high temperatures can degrade the delicate immunoglobulins and other beneficial proteins. Stick with room temperature or cold liquids and foods for optimal results.

If you have diabetes, metabolic issues, or simply find you get better results taking it on an empty stomach, mixing Bio-Avail Colostrum+ with 6-8 ounces of room-temperature water and drinking it 30 minutes before or 2 hours after a meal is still a great option.

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.

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.

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

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. 

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. 

Customer Reviews

Based on 198 reviews
79%
(157)
7%
(13)
6%
(12)
4%
(7)
5%
(9)
M
Marilyn F
No more side pain

I tried another Colustrum and it diminished my side pain from gut issues. However Adapt Naturals Bio-Avail Colostrum has completely alleviated my pain. My digestion has greatly improved!

Thank you

N
Nicole Hughes
Great product

Definitely seen improvement in skin

Hi Nicole,

Thanks for your review! Colostrum is packed with growth factors and immune-supporting compounds that can help promote smoother, more hydrated skin from the inside out.

Glad you're seeing the difference—here’s to even more radiant results ahead!

T
Tania S
So far so good

Easy to take, hoping it helps with my hair loss. So far I a feel good and am going on auto ship to keep trying it

Hi Tania,

We love hearing that you’re feeling good so far! Bio-Avail Colostrum’s rich growth factors and immune-supporting compounds may help promote stronger, healthier hair over time. Sticking with it consistently—like you’re doing with auto-ship—is a great way to see the best results.

Excited for you and looking forward to hearing more about your journey!

S
Sherri Smith
Don’t pass this up

I tried another brand for 2 months and switched to Adapt Naturals Colostrum. I’ve now been taking it for 2 months and there are noticeable changes . My bowel habits are like clockwork and my stomach bloat is gone. I saw my parents for the first time in 2 months. My father looked at me and said what have you done to your face your skin is so smooth and you have less wrinkles. I’ll take that for 58!!!
My hair was falling out by the handfuls in the shower but since I changed to Adapt Naturals Colostrum it has started growing and I have small sprouts of regrowth

Do not pass this miracle up!!

Hi Sherri,

Wow—what an amazing transformation! From smoother skin and regrowing hair to clockwork digestion and reduced bloating, it’s incredible to see how Bio-Avail Colostrum is supporting your health in so many ways. And with 2.5x more colostrum per serving than most brands, you’re getting the full benefits of this powerhouse nutrient. Getting a compliment like that from your dad is just the icing on the cake!

Thanks for sharing your journey—here’s to thriving at 58 and beyond!

K
Karlene Myers
Adapt Naturals Colostrum

am currently on my second order of colostrum and have already noticed a difference in my skin and my energy level! My skin feels and looks much more hydrated! Product has no taste and can easily be taken in so many ways without altering the taste! Highly recommend!

User picture

Hi Karlene,

We love hearing this! Colostrum is a powerhouse for skin hydration and energy, and it's awesome that you're already seeing the difference. The versatility is definitely a bonus—easy to mix into your routine however you like.

Thanks for sharing your experience, and we’re so glad you’re on your second order! Here’s to continued radiant skin and lasting energy! ✨

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