• Bio-Avail Collagen+
  • Bio-Avail Collagen+
  • Bio-Avail Collagen+
  • Bio-Avail Collagen+
  • Bio-Avail Collagen+
  • Bio-Avail Collagen+
  • Bio-Avail Collagen+
  • Bio-Avail Collagen+

Bio-Avail Collagen+

30 day supply

Certified Grass-Fed Collagen Peptides

Bio-Avail Collagen+

30 day supply

Certified Grass-Fed Collagen Peptides

Get the purest, highest-quality collagen peptides to support your skin, joints, and overall health!

  • 10 grams of certified grass-fed collagen peptides per serving

  • Low molecular weight for superior absorption and effectiveness

  • Support skin elasticity, joint comfort, and gut health

  • Enhances muscle recovery, promotes satiety, and improves sleep quality

Delivers every
($1.89/per serving)

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($2.10/per serving)

Free US Shipping on orders over $85

60-day Returns

Exclusive Subscription Perks

Order # Gift Value
2 FREE Storage Bottle $5-$7
4 FREE Adapt Naturals Frother $25.99
6 FREE Adapt Naturals Trucker Hat $29.99
8 Special Gift $75
NOURISH YOUR SKIN FROM WITHIN

Enhance skin elasticity and hydration

Reduce fine lines and wrinkles Support a more youthful, radiant complexion

SUPPORT JOINT AND BONE HEALTH

Maintain healthy cartilage and connective tissue

Reduce joint discomfort and stiffness Support bone density and strength as you age

ENHANCE RECOVERY AND PERFORMANCE

Speed up muscle and tissue recovery after exercise

Support tendon and ligament strength and integrity Improve body composition

STRENGTHEN GUT AND METABOLIC HEALTH

Support a healthy gut lining and barrier function

Balance appetite and promote feelings of fullness Improve sleep quality through glycine content

Certified Grass-fed collagen peptieds (SOLUGEL®)

Certified Grass-fed collagen peptieds (SOLUGEL®)

Contains 10 grams of SOLUGEL® certified grass-fed collagen peptides—the only truly certified grass-fed collagen on the market. Unlike competitors who make unverified "grass-fed" claims, our collagen is certified by LIAF Control in collaboration with the American Grassfed Association. This certification guarantees that our collagen comes from cattle raised outdoors on pasture 365 days per year with free access to fresh grass, air, land, and water. It also ensures the animals are born and raised on family farms/ranches—rather than big multinational corporate operations.  Never given hormones, antibiotics, or anabolic steroids, our cattle are continuously subject to veterinary supervision and raised according to the highest ethical standards. 


What sets our collagen peptides apart is their optimal molecular weight (average 2 kDa). At this size, the peptides dissolve completely clear in liquids, are rapidly absorbed in the digestive tract, and are more bioavailable. This low molecular weight prevents the digestive discomfort that some people experience with other collagen supplements and ensures that the active peptides reach your tissues where they can provide maximum benefit.

Discover the Bio-Avail Collagen+ Advantage

 
Competitors
Ingredients
Certified grass-fed
Uncertified, questionable sourcing
Absorbability
Low molecular weight (2 kDa)
Variable molecular weight
Solubility
Dissolves crystal clear
Often clumpy
Clinical Background
15 years in-clinic
Not typically
Sustainability
Supports regenerative agriculture
Unknown sourcing
Founder
Functional Medicine expert
Marketers
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Signs You Need Bio-Avail Collagen+

Fine lines, wrinkles, or dry, thin skin

Joint discomfort, stiffness, or decreased mobility

Longer recovery time after exercise or injury

Brittle nails or thinning hair

Digestive discomfort or gut sensitivity

Poor sleep quality or difficulty falling asleep

What You'll Feel Using Bio-Avail Collagen+

  • Smoother, more hydrated and resilient skin

  • Improved joint comfort and flexibility

  • Faster recovery from workouts and activity

  • Stronger nails and healthier-looking hair

  • Better gut health and digestion

  • Enhanced feelings of fullness and satiety

  • Improved sleep quality

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

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

Why Choose Bio-Avail Collagen+?

Bio-Avail Collagen+ contains SOLUGEL® certified grass-fed collagen peptides. While most "grass-fed" collagen claims are unregulated and unverifiable, our collagen is officially certified by a third-party organization (LIAF Control in collaboration with the American Grassfed Association). This certification ensures our collagen comes from cattle that spent 100% of their lifetime on grass and pasture.

The science-backed 10-gram daily dose aligns perfectly with clinical studies showing benefits for skin, joints, and overall health. Our collagen is precisely processed to achieve an optimal 2 kDa molecular weight, which maximizes absorption and bioavailability. This means it dissolves crystal clear in any beverage and is gentle on your digestive system.

Unlike other collagen supplements that contain fillers, flavors, sweeteners or questionable additives, Bio-Avail Collagen+ contains just one clean ingredient: certified grass-fed collagen peptides. Nothing else. This pure approach ensures you get all the benefits without any unwanted substances.

Formulated to Support Your Body's Natural Collagen Production

From modern diets lacking connective tissues to sun exposure and the normal aging process, our natural collagen production decreases substantially beginning in our mid-20s. By age 40, most people have lost significant collagen, leading to visible signs of aging in skin, less resilient joints, and slower recovery. Bio-Avail Collagen+ was formulated to provide your body with the specific peptides it needs to stimulate and enhance its own collagen production.

This is more than just adding protein—our specific collagen peptides act as biological messengers that signal your cells to increase their own collagen synthesis. Supporting your skin, joints, muscles, and gut with precisely the right building blocks leads to far-reaching improvements in how you look and feel.

Harness Years of In-Clinic Experience and Ancestral Wisdom

Backed by Adapt Naturals' 15 years of in-clinic experience and dedicated to creating supplements that make a meaningful difference, Bio-Avail Collagen+ combines cutting-edge research with insights from ancestral wisdom to bring you a premium-quality supplement.

Bio-Avail Collagen+

Unlock Your Optimal Health

Upgrade Your Wellness with Bio-Avail Collagen+—Certified Grass-Fed Collagen Peptides Optimized for Superior Absorption

Get Healthier & Happier - Try Now

Your Questions Answered

Mix one scoop (10g) into any hot or cold beverage. It dissolves completely clear with no taste, making it perfect for coffee, tea, smoothies, or plain water. For optimal results, take daily. You may notice benefits within 4-8 weeks of consistent use, with continued improvements over 3-6 months.

The term "grass-fed" is not regulated in supplements, meaning many companies can make this claim without verification. Our collagen is different—it's certified by LIAF Control, a member of the American Grassfed Association. This certification guarantees that the cattle spent 100% of their lives on pasture, eating grass, with no hormones or antibiotics, and with full traceability back to the multigenerational, family source farms. Click here to learn more about how we source our collagen.

Three key differences: 1) It's the only certified grass-fed collagen on the market; 2) It has a precise ~2 kDa molecular weight for optimal absorption and bioavailability; and 3) It contains a full 10-gram dose, which research shows is most effective for results. Plus, it's a clean-label product with absolutely no fillers, sweeteners, or additives.

The ~2 kDa molecular weight of our collagen peptides makes them more bioavailable and easier to digest. This means better absorption, reduced digestive discomfort, and greater efficacy. Our collagen also dissolves completely clear in liquids—no clumps or gritty texture—making it more pleasant to consume.

Bio-Avail Collagen+ is gluten-free, dairy-free, soy-free, and contains no added sugars, fillers, or artificial ingredients. However, it is derived from bovine sources, so it is not suitable for vegetarians or vegans.

While individual results vary, studies show benefits can be observed in different timeframes: improvements in skin elasticity within 4-8 weeks, joint comfort within 3-6 months, and exercise recovery benefits within 4-12 weeks. Consistency is key—daily use will yield the best results.

Research has shown that collagen peptides can significantly reduce appetite and subsequent meal energy intake compared to other proteins. This satiety effect is thought to be related to collagen's specific amino acid profile, which may influence hunger hormones and metabolic signals. Some studies showed a 20% reduction in food intake following collagen consumption.

Certified SOLUGEL® grass-fed collagen peptides

Certified SOLUGEL® grass-fed collagen peptides are our solution for pure and sustainably sourced collagen peptide supplements. The cattle are raised outdoors, grazing grass all year long, and they are free from hormones, antibiotics, and anabolic steroids.

The raw material sourcing and production process are certified by LIAF Control SRL., a member of American Grassfed Association.

Customer Reviews

Based on 1 review
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J
Jator Pierre
Noticeable recovery changes in 1 week

I push my body hard, typically upwards of 15 hours of training per week, encompassing Ice Hockey, Resistance Training, and Performance training (agility, power, speed, etc.). Incorporating Bio-Avail Collagen + into my routine has decreased muscle fatigue and increased desired energy output. My HRV is trending up, as are my readiness and sleep scores via Oura. I highly recommend it.

Hi Jator,

This is next-level feedback—thank you! When recovery matters, the right formula makes a difference. We’re honored to be part of your training stack!

Thanks for your continued support in Adapt Naturals! Your loyalty means a lot to us.