Bio-Avail Colostrum+
Grass-Fed Colostrum with Lactoferrin and Beta-Glucan
Bio-Avail Colostrum+
Grass-Fed Colostrum with Lactoferrin and Beta-Glucan
A 3-in-1 formula with clinical-dose Lactoferrin and Wellmune® Beta-glucan. Formulated to seal the gut barrier, strengthen immunity, and restore skin, hair, and nails.
-
Exceeds the colostrum dose proven effective in clinical trials
-
Cold-processed to protect heat-sensitive antibodies and growth factors
-
Sourced from USDA Grade A grass-fed U.S. family farms
-
Free of fillers, gums, sweeteners, and artificial anything
-
Third-party tested, results published. 90-day money-back guarantee
Serving Size: 1 Scoop (Approximately 2.85g / 0.10oz)
Servings Per Container: 30
See What Others Are Saying
Seal your mucosal barriers to keep antigens out
Protect against pathogens, allergens, toxins, and other foreign invaders
Regenerate and replenish with key nutrients
Enjoy radiant skin, hair, and nails and a youthful glow
Feed your beneficial bacteria and reduce harmful microbes
Support your gut flora with prebiotics, immune factors, and beta-glucans
Transform your health from the inside out
Boost your energy and vitality and turn the clock back on aging
Powerful Nutrients & Vitamins
Grass-Fed Bovine Colostrum
Contains 2.5 grams of whole, unprocessed grass-fed colostrum from pasture-raised cows never given antibiotics, hormones, or GMOs. Our upgraded colostrum retains its natural golden color from carotenoids in grass-fed cows' diet – a sign of superior quality. It serves as the first source of nourishment for newborns and is packed with essential nutrients, antibodies, growth factors, and other bioactive compounds. Colostrum nourishes the gut microbiome, supports the mucosal barriers (e.g., gut, skin, lungs, etc.), protects against infections, and modulates the immune response.
Lactoferrin (Bioferrin®)
Contains 100 mg of lactoferrin (as Bioferrin®). Lactoferrin is a protein in the milk, tears, and saliva of mammals. It plays a vital role in defending against microbial invaders, promoting gut health, and enhancing the immune system's effectiveness. It also supports efficient iron metabolism—keeping it away from pathogens that require it and helping us to absorb it more efficiently. Lactoferrin is naturally present in small amounts (~3-5 mg per gram) in colostrum. We’ve included a much larger amount to amplify its benefits and provide better results.
Beta-Glucan (Wellmune®)
Contains 250 mg of beta-glucan (1,3/1,6 as Wellmune®). Beta-glucan is a naturally occurring polysaccharide in yeast, mushrooms, and other foods. It’s known as a “biological response modifier,” a class of compounds that regulate immune function. Beta-glucans help to “train” our innate immune cells, helping them to recognize and respond more quickly and efficiently to threats. Instead of boosting or suppressing the immune system, beta-glucans fine-tune it and restore balance.
Signs You Need Bio-Avail Colostrum+
Frequent seasonal immune challenges
Premature wrinkles, dryness, or other skin issues
Imbalanced 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+
90-Day Money Back Guarantee
We're confident you'll love our products, but if you're not completely satisfied, we offer a 90-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 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
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
Unlock Your Optimal Health
Upgrade Your Wellness with Bio-Avail Colostrum+—Immune Defense, Simplified
Get Healthier & Happier - Try Now
Your Questions Answered
I love taking colostrum if seems to help my digestion.
Hey Suzanne,
Loving it and feeling the digestive support is exactly what we hoped for! The immunoglobulins growth factors lactoferrin and Wellmune® beta-glucans in Bio-Avail Colostrum+ nourish and support the gut lining every day and a happier more settled digestive system is one of the most consistent things our customers notice. Thank you for sharing this super cute picture of you and your family! We love it!
I take this first in the morning. I hydrate. I have my coffee about an hour later. My skin is smoother, I can drink regular milk again! Also, I no onger need to take Allegra for my allergies. I haven’t had a cold nor the flu in the last two years I have been using Adapt Naturals
Hey Helen,
Better digestion no more Allegra for seasonal allergies not a cold in years glowing skin and a nail that used to always split no longer does, that is Bio-Avail Colostrum+ showing up across every system it was designed to support at once. The immunoglobulins lactoferrin and Wellmune® beta-glucans fine tuning the immune response the growth factors supporting skin and connective tissue and the gut lining work rippling out into all of it is exactly the picture Chris had in mind when he formulated it. That is a beautiful list and we are so genuinely happy for you. Thank you so much for sharing!
My 16-year-old daughter and I have been on Bio-Avail Colostrum+ for about 6 months. I have been treated with quarterly iron infusions for two years. After taking this product for 6 months, my ferritin finally came in at 116 and they didn’t schedule another infusion, I’m theorizing from the Lactoferrin. I will get tested in 3 months, fingers crossed! My daughter has depression and is somewhat reclusive. Within two weeks we noticed a huge improvement in her mood and desire to socialize. We both have more energy and are sleeping better, and I tolerate more foods. This is the best use of our money! So grateful!
Hey Jennifer,
WOW—this review is incredible! Your ferritin coming up to 116 after quarterly infusions for two years is amazing (the 100mg Lactoferrin in our formula definitely plays a role!), and your daughter's mood improvements within two weeks are just wonderful to hear. The fact that you're both sleeping better, have more energy, and you're tolerating more foods shows how powerful Bio-Avail Colostrum+ is for whole-body health. Chris formulated it with 2.5g grass-fed colostrum plus lactoferrin and beta-glucan for comprehensive gut and immune support. Lastly though, we love a coffee brand called Dekaf! They have a 25% caffeinated/75% decaf blend and it is swiss water processed. Check it out!
We're so grateful Adapt Naturals is making such a difference for your family!
This is my second order of Bio-Avail Colostrum and even in my use of the first order I noticed an improvement. Going to keep on going, I am 62 and my hair has been thinning for years. I am hoping to get some improvement in my scalp. Will keep you posted. I am in it for the long run.
Hey Farooq,
Thank you so much for this review and for sticking with Bio-Avail Colostrum+! We're thrilled you're noticing improvements in your bowel movements—that's a great sign your gut is responding well. The fact that you're already on your second order and committed for the long run is wonderful! Chris formulated Colostrum+ with 2.5g of grass-fed colostrum (2.5x more than most competitors) that contains growth factors which support not just gut health, but also skin, hair, and nails. Many customers do report improvements in hair health over time as the colostrum nourishes from within. At 62, you're giving your body the building blocks it needs to support healthy hair growth and scalp health. Hair improvements typically take a bit longer to notice (often 3-6 months of consistent use), but the fact that you're already seeing gut benefits is a great sign. Keep us posted on your hair journey—we're rooting for you!
In a quest to figure out why I can’t seem to lose my belly weight after my 40s, feeling bloated easily, feeling sluggish, I tried the colostrum and bio-avail duo. I felt some difference but what I really noticed was how my immunity improved. My husband got sick, and even though I was around him, I somehow avoided any symptoms at all. It is true that the key to fighting illnesses comes from your gut. The new colostrum formula definitely is taking some getting used to, but knowing what benefits I’ve already had, I’m willing to suck it up :)
Hi Maisah,
Thank you so much for sharing this wonderful experience! We're thrilled to hear about your immune system improvements—staying healthy while your husband was sick is such a powerful real-world example of how gut-immune health works. You're absolutely right that 70% of your immune system is embedded in your gut lining!
We love that you're noticing the connection between gut health and overall wellness, even beyond what you initially expected. The combination of Bio-Avail Colostrum+ (with its growth factors, immunoglobulins, and lactoferrin) and Biome Protect working together to support your gut barrier and microbiome is exactly what our founder Chris designed this duo to deliver.
We really appreciate your willingness to adjust to the new Colostrum+ formula! The whole colostrum format with its healthy fats and cofactors is what's giving you those deeper immune and gut benefits. If you haven't tried it yet, using a frother or mixing it into a smoothie can really help with the texture.
Thank you for being part of the Adapt Naturals community and for sharing such a detailed, helpful review. We're so glad it's working for you! Take good care!
My husband died back in July 2025. I couldn’t get a handle on my gut. Everything went straight through me. I don’t like going to Dr’s for issues like this. I prefer something more natural. I saw on Instagram (I think) Chris speaking about the Colostrum and probiotics. I bought them and have been on them for almost two weeks. My gut feels amazing! I ate some junk food one time and I paid the price. But eating healthy and taking these products every day has been a game changer for me. I hope to return to be able to cheat once in awhile on my diet. So until then, these products will be a staple in my morning routine. Thank you
Hey Dianna,
Wow, that is just amazing to hear! We are sorry for your loss. Thank you so much for sharing your story and trusting us on your wellness journey. We’re thrilled that Bio-Avail Colostrum+ and Biome Protect have helped you get your digestive health back on track — that’s exactly what they’re designed to do!
Colostrum+ helps strengthen and repair the gut lining while supporting immune function, and when paired with Biome Protect, it helps create a healthy, balanced microbiome so your digestion and overall health can thrive. It’s wonderful to hear you’re already feeling the difference.
We’re honored to be part of your healing routine and can’t wait to continue supporting your path to better health (mind, body, and spirit)!
I have been trying to heal leaky gut for a few years (after decades of damage--didn't realize that antibiotic use, ultra-processed foods, birth control, stress were causing this). For whatever reason, the main gut-issue symptom I had was skin problems (acne, rosacea on face).
This colostrum is one of my top 2 products, along with the Dr. Amy Meyers Leaky Gut Revival (a combo of L-glutamine and other herbs). I have noticed my skin is getting consistently clearer as I take these products along with lifestyle changes. I still eat dairy, gluten, and sugar in limited portions.
Hi Elizabeth,
Thank you for sharing your story—we’re happy to hear Bio-Avail Colostrum+ is helping support your skin and gut healing journey! This formula combines grass-fed colostrum, lactoferrin, and beta-glucan, all of which help repair the gut lining, regulate skin inflammation, and support healthy immune function.
It’s wonderful that you’re seeing those improvements in your skin and overall balance. We’re honored to be part of your healing process!
I am a mama of two with baby 3 on the way. This supplement makes me feel so good knowing I am getting many of the essentials nutrients I need for my demanding lifestyle!
Hi Ellissa,
Thank you for sharing—and congratulations on baby #3! We’re so glad Bio-Avail Organ is helping you feel nourished and supported during such a busy, demanding season of life. Organs definitely are natures powerhouse and in Bio-Avail Organ we incorpate five, the liver, kidney, splean, pancreas and heart! Wishing you a smooth and healthy journey ahead!
I am on on my third order of the Bio-Avail Colostrum+ and I enjoy taking the supplement and look forward to it daily. I feel like my stomach has been feeling better since I started. I am hoping it also starts to help combat thinning hair. Thanks for the great product and will continue to subscribe.
Hi Joey,
We’re thrilled to hear it’s part of your daily routine! Bio-Avail Colostrum+ is packed with nutrients like immunoglobulins, growth factors, and lactoferrin—all supporting gut health and immune resilience. Thanks for your continued support!
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!
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! ✨
My husband has been sick for the last month and a half, we went to a child’s party with 10+ kids, and I’ve been around other sick individuals in public. I have not gotten sick! I relate it to the colostrum.
Hi Meg,
That’s amazing to hear! Bio-Avail Colostrum+ is packed with immune-supporting compounds that help strengthen your body’s natural defenses, and it sounds like it’s been working for you. With everything going around, it’s great to have that extra layer of support—especially after being around so many germs!
We appreciate you sharing your experience and are so glad you’ve stayed healthy. Wishing you and your husband all the best!
I started with Adapt Colostrum approximately 3 months ago, my energy level has never been higher! I had my doubts about any products advertised on Instagram, but I really do like this product! The taste is great and it has 2.5x the colostrum in each scoop as compared to others....I highly recommend!
Hi Becky,
Thanks for sharing your experience with Bio-Avail Colostrum+! We love hearing that you've noticed such a boost in energy over the past 3 months. You're right about the higher concentration - the 2.5g per serving really makes a difference in the results people see.
Thanks for trusting in Adapt Naturals!
I’ve received colstrom today in my country and Olmost it’s cost me 150 USD including shipping, but once I open the package i really surprised and olmost 70% of pocket is empty space and it’s only 30% of product available inside ! However I didn’t try to effectiveness of this but I’m really disappointed about that !
It’s can last as fast as a week and 150 $ is expensive for that much of product
Hi Benjaco,
That is definitely an issue and we're so sorry you didn't get a full dose! We take these types of concerns very seriously. Can you please reach out to our customer support team? They will look into this issue for you as well as give you a replacement.
Thanks so much for bringing this to our attention.
I was using Armra for about a year and enjoyed it, but felt like I needed to increase the dose consistently. I decided to try adapt naturals because I am an acupuncturist and wanted to try a product made from someone who I knew was extremely knowledgeable and was also a colleague. After 1 month I noticed that with a lower dose I was feeling better and after 2 months noticed considerable hair growth and improved skin complexion. I now prescribe to all my patients. Love this product.
Hi Yael, We are thrilled to hear you have noticed improvements in your hair growth and skin health. We are happy you gave it a try. Thank you for sharing your experience and for supporting our brand. All the best!
I've been looking forward to mornings before coffee to drink this fountain of youth Colostrum powder. Tasteless and goes down easily. I and can honestly say my skin is feeling the effects. There is a radiance and clarity as well as a firm filling out effect. My hair and nails as well feel the benefit. I also know the Omegas are doing what they are supposed to do. I'm 61 years old and I recommend both of these product without hesitation.
Hi Kristen. We are thrilled to hear you have noticed improvements in your hair, nails, skin and even mental clarity! Thank you for trying our Bio-Avail Colostrum+ and sharing your experience. All the best!
In learning how Adapt's bio-avail colostrum strengthens the immune function, (not boosting it, but strengthening it....) giving power to those gut-immune axis roles, I've come to view adding this to my routine as a foundation. I envision the Seed probiotic that I also take to have an even more supported role in making a happy gut! I like knowing that the product is as researched as all of Adapt's supplements are: good health begins in the gut and this product is an integral part of my wellness routine!
Hi Lorilyn, Thank you for sharing your experience with our Colostrum+. We hope you wil experience all the benefits of this great product. We wish you all the best on your health and supplement journey!
I have struggled with gut health issues for over 20 years, dealing with ailments like IBS, SIBO, parasites, and gut dysbiosis (bacteria imbalances). I was accustomed to living in a daily or weekly state of gut discomfort with bloat, diarrhea, inflammation, and feeling like I couldn't tolerate many foods. I've tried many products that only help for a short while, so I had low expectations that this one would be any different. I am beyond thrilled that I took a chance to try Adapt Naturals Bio-Avail Colostrum product. I have taken it for 5 months and feel less inflamed, less bloated, and like I can tolerate more types of food than ever before. I also have had less IBS episodes. As I began taking the product, I started slow with a half dose and after a couple of months, I am taking a full dose. I am so grateful to have found Bio-Avail Colostrum as an effective tool in my toolbox for health and well-being. Thank you Adapt Naturals for making this high quality product!
Hi Bethany, Thank you for giving our Colostrum + a try! We are indeed happy to hear of the amazing experience you are having with this supplement. Thank you for leaving us a review. Best of Health!