Finally, A Colostrum That Actually Works—2.5x Stronger + Clinically Enhanced

The only colostrum with therapeutic dosing PLUS lactoferrin and beta-glucan for results you can feel in days, not months

Clinician-Formulated | 3rd Party Tested | 60-Day Guarantee | Free Shipping

★★★★★ 4.8/5 (245 verified reviews)

Starting at $62.95/month (With 10% Subscribe & Save)

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Why Bio-Avail Colostrum+ is Different ↓

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5 Science-Backed Benefits in 30 Days or Less

Heal Your Gut & Eliminate Bloating

Bio-Avail Colostrum+ provides growth factors that repair and seal your gut lining. Customers report dramatic improvements in bloating, irregularity, and food sensitivities—often within days.

"My acupuncturist recommended this product when I was having a lot of digestive issues. I’ve been using it for a month now and have noticed a huge improvement in digestion and even in my skin." - Michele, Verified Buyer

Bulletproof Your Immune System

With therapeutic levels of immunoglobulins plus Wellmune® beta-glucan (shown to reduce infections by 66%), you'll stay healthy when everyone around you is sick.

“Since I started taking this, I haven’t had a cold—despite my kids bringing everything home from school. I’m a believer now.” - Lucy, Verified Buyer

Get Radiant Skin, Stronger Hair & Nails

The growth factors in colostrum stimulate cellular renewal throughout your body. Expect clearer skin, faster-growing hair, and stronger nails.

“I’ve been using [another colostrum brand] for over a year and decided to switch to this. After one month, my nails are stronger and I’m starting to see hair regrowth at my temples.” - Pasha, Verified Buyer

Natural Energy Without Crashes

By healing your gut and optimizing nutrient absorption, you'll experience steady, natural energy throughout the day.

“I started with Adapt Colostrum approximately 3 months ago and have noticed an increase in overall energy and mood." - Becky, Verified Buyer

Accelerate Recovery & Reduce Soreness

Studies show athletes taking colostrum experience 33% less muscle soreness and faster recovery times. Perfect for active lifestyles.

“Incredible product, took my exercise recovery to a whole new level. Less soreness, more stamina, and I bounce back faster after long runs.” - Tony, Verified Buyer

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Why Your Current Colostrum Isn't Working

If you've tried colostrum before and felt disappointed, you're not alone. After 15 years in clinical practice, I kept hearing the same frustrating story from patients.

They were spending $40-80+ monthly on colostrum, yet still struggling with:

Persistent bloating and digestive discomfort
Getting sick every time something "went around"
Dull skin and brittle nails despite good nutrition
Slow recovery and lingering soreness after workouts

The truth? Most colostrum supplements are underdosed, over-processed, and missing key synergistic compounds that amplify results.

After seeing thousands of patients waste money on ineffective formulas, I knew there had to be a better way...

Introducing Bio-Avail Colostrum+: The Clinical-Grade Formula

This deep understanding, gained from treating thousands of patients and training hundreds of clinicians, led me to create Bio-Avail Colostrum+—the first enhanced colostrum formula that combines therapeutic dosing with synergistic nutrients.

What Makes Bio-Avail Colostrum+ Different:

✓

2.5g Therapeutic Dose 2.5x more than typical supplements

✓

Cold-Processed Preserves fragile immunoglobulins and growth factors

✓

Grass-Fed Source From pasture-raised cows, hormone-free

✓

Enhanced with Lactoferrin 100mg for antimicrobial and iron support

✓

Fortified with Beta-Glucan 200mg Wellmune® for immune training

✓

Professional Quality Clinician-formulated with premium ingredients

✓

Third-Party Tested Every batch verified for purity and potency

Made in USA | GMP Certified | Non-GMO

Try Bio-Avail Colostrum+ Risk-Free

The Bio-Avail Colostrum+ Difference: It's Not Just More, It's Better

Through years of clinical research, I discovered why traditional colostrum fails—and created the breakthrough my patients needed.

Standard Colostrum	Premium Colostrum	Bio-Avail Colostrum+
1g dose	2g dose	2.5g therapeutic dose
Over-processed	Cold-processed	Cold-processed
No added compounds	Basic formula	+Lactoferrin +Beta-Glucan
Minimal results	Some benefits	Transformative results

The Clinical Breakthrough: Bio-Avail Colostrum+ is the first formula to combine therapeutic-dose colostrum with two clinically-proven enhancers that extend and amplify its benefits—creating results you can actually feel.

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Real Transformations from Real People

★★★★★

David, Verified Buyer

"I have been using Adapt Naturals Colostrum for about 9 months now and the difference I am experiencing in my overall health has been amazing. Having a low immunity I have always been susceptible to catching every cold, flu, and virus out there. Especially being with my granddaughter who would bring every germ home from daycare! I have not been sick in the past nine months. This is HUGE for me."

★★★★★

Kristen, Verified Buyer

"This is the third colostrum brand I’ve tried and the only one I actually felt results with. More energy, fewer cravings, better recovery after workouts."

★★★★★

Susanne

"I loved it so much I ordered 2 more bags to be sure I won’t run out anytime soon. Helps with bloat, stomach issues and energy. I feel amazing on this. Started my colostrum journey with [another colostrum brand] and switched to adapt naturals and will never go back"

Join 10,000+ people who have transformed their health with Adapt Naturals

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

As Seen In

Building Your Complete Vital Defense Protocol

While Bio-Avail Colostrum+ provides powerful standalone benefits for immunity, gut health, beauty, and vitality, some patients in my clinic needed additional support for complete restoration. After years of clinical practice, I formulated two complementary products that create a comprehensive vital defense system when combined with Bio-Avail Colostrum+.

Biome Protect: The Gut Health 3.0 Solution

For patients with persistent digestive issues or those wanting comprehensive microbiome support, I created Biome Protect—a revolutionary 4-in-1 formula that includes:

Spore-based probiotics that survive stomach acid
Non-fiber prebiotics that work without causing bloating
Postbiotics for direct gut cell nourishment
Targeted polyphenols from ancestral sources

When combined with Bio-Avail Colostrum+, it creates powerful synergy: Bio-avail Colostrum+ repairs and protects the gut barrier while Biome Protect optimizes your microbiome balance.

Bio-Avail Omega+: The Recovery & Wellness Optimizer

For patients seeking enhanced recovery, cardiovascular support, or optimal cellular health, Bio-Avail Omega+ provides:

Full spectrum omega-3s in their natural triglyceride form
Bioavailable curcumin to reduce post-exercise inflammation
Black seed oil for supporting deep sleep and immune regulation
Purity and freshness exceeds most stringent international standards (third-party tested)

This completes the vital defense trilogy: Bio-Avail Colostrum+ for immune and gut barrier support, Biome Protect for microbiome balance, and Bio-Avail Omega+ for recovery and cellular wellness.

💪 VITAL DEFENSE

Choose Your Vital Defense Bundle

Complete Protection for Immunity, Beauty, Energy & Gut Health

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Essential Vitality

Life-enhancing foundation

$69.94

Bio-Avail Colostrum+ $69.94

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Total value: $77.93

Your price today: $69.94

You save: $7.99 (10%)

BOOST MY VITALITY

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Supports immune system & defense
Enhances beauty from within
Boosts energy & vitality
60-day no questions asked 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

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

At Adapt Naturals, all of our products are third-party tested and validated, and we are always happy to share these results with customers. We want you to have full confidence that you’re getting exactly what you think you are with each purchase.

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Your Questions Answered

What is the best way to take Bio-Avail Colostrum+

We suggest taking two capsules a day with food. The time of day is not important. If you have a sensitive digestive system, you can take one capsule twice a day.

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 sensitive to lactose. We recommend speaking with your healthcare provider before supplementing with Colostrum+ if you are sensitive to lactose.

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.

Is Bio-Avail Colostrum+ third-party tested?

Yes, all Adapt Naturals products, including Bio-Avail Colostrum+, undergo rigorous third-party testing for purity and potency. Most importantly, we transparently share these results with our customers by posting Certificates of Analysis (CoAs) and test results on our website. This level of openness is almost unheard of in the supplement industry. It allows you to see exactly what’s in the product you’re putting into your body. Click here to view the most recent CoA and test results.

Bio-Avail Colostrum Works!

I started taking Bio-Avail Colostrum to help support my gut. I've done a cleanse and had been taking Biome Protect for several months with good results of bowel movements, but my stomach and gut were still irritable. If I ate the wrong thing or just daily for no reason, I would get cramping or bloating. Since I started taking this colostrum, my symptoms have almost completely resolved. The only time they recur is if I miss taking it for several days. It has also helped with my skin, providing a smoother, more moist and youthful appearance! I'm very happy with this colostrum and recommend it frequently.

Hi Tara,
Thank you so much for sharing your detailed experience — it means a lot to us! It’s incredible to hear how much Bio-Avail Colostrum+ has helped calm your gut symptoms and even supported your skin health. We’re happy to hear that you notice the difference when you miss it, consistency truly can make all the difference with foundational gut support. We’re honored to be part of your wellness routine, and we appreciate you recommending it to others!

High quality good product

Ive tried 2 different colostrum brands and i love adapt naturals especially that it has lactoferrin. I have noticed stronger nails and less bloating since taking this.

Hi Cindh,

Thank you so much for your kind words! We’re thrilled you’re loving Bio-Avail Colostrum+ and noticing those tangible benefits. Including lactoferrin was intentional to support immune and gut health, and we’re so glad it’s also helping with bloating and nail strength as well. We appreciate your support!

The first month taking Colostrum I was very happy with the bowel movements. I am on my second Colostrum and do not see the same results so I am left to assume I have cleaned out my system.

Hi Catherine,

Thank you for sharing your experience — we really appreciate it. It’s actually quite common for colostrum to support more noticeable digestive shifts early on, especially as it helps strengthen the gut lining and rebalance the microbiome. Over time, many people find that regularity stabilizes at a new, healthier baseline.

That said, if you feel like you’re not seeing the ongoing support you'd hoped for, please remember you're covered by our 60-day money-back guarantee — and we're always here to help troubleshoot or answer any questions that may come up. Take care!

Great product!

I was using the other more popular brand and was having so many issues with fulfillment and switched to Adapt. It has been great!!

Hi Sarah,

We’re so glad you made the switch and that it’s been a smooth experience! Bio-Avail Colostrum+ uses pure, grass-fed colostrum plus lactoferrin and beta-glucan for gut and immune support. We appreciate your trust and are happy to have you with us!

Immune booster

Both my wife and I work in health care and in 18 months I have been taking this colostrum I havent been sick once. Even living in close quarters with my wife when she has brought home bugs I haven’t caught any of them.

Hi Sunny,

Wow — thank you for this sondeful feedback! Bio-Avail Colostrum+ supports mucosal immunity (our first line of defense) through immunoglobulins, lactoferrin, and growth factors, which may help explain your resilience even in close contact settings. We’re honored to support both you and your wife as healthcare workers — thank you for all you do!

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Finally, A Colostrum That Actually Works—2.5x Stronger + Clinically Enhanced

Hear What Others Are Saying