Unsweetened Unflavored Grass Fed Native Whey Protein Subtotal: $49.99
BETTER WITH COLLAGEN
Collagen Peptides – Grass Fed Pasture Raised
$55.99
GRASS FED & PASTURE RAISED COLLAGEN PEPTIDES
UNFLAVORED | UNSWEETENED | LACTOSE FREE
JOINT FLEXIBILITY + LIGAMENT SUPPORT + SKIN HYDRATION + HAIR & NAIL HEALTH
. 
This product is 3rd party tested. View Heavy Metals Report Here (COMING SOON)
Size: 2 Lbs (908g). Serving Size: 22g (1 scoop). Servings Per Bag: 43
Collagen Protein Per Serving: 20g | Cost Per Serving: $1.30
Subscribe now and save 15% on all orders. Cancel any time!
BETTER WITH COLLAGEN
CUSTOMERS LOVE OUR COLLAGEN
"Just started this last week. Mixes into my morning coffee with almost no taste, which is exactly what I wanted but the pouch quality and clean label made me switch from the flavored brand I was using."
"Second week on the new collagen. I stir one scoop into yogurt. No grit, no sweetener aftertaste. Skin around my cheeks looks a little less dry in the morning. Too soon for nails, but I’ll keep using it."
"Bought it because I already use JKP whey. Same clean approach. Dissolves in cold water if I shake it for 20 seconds. I mix it with my JKP green Isolate."
"Mixes well. taste is not gross like other collagens I've tried. super fine powder that dissolves and doesn't clump - amazing with my morning coffee"
"20g is a lot in one coffee and I end up splitting it into servings. taste disappears with my coffee creamer, dissolves easily with no clumping. Love this brand and how clean their products are. Will buy again"
"Yay! finally they offer Collagen. been using this for two weeks, just love how easily it dissolves. I add the scoop to my protein shake - been using the lactose free isolate for years - thank you Nadia, Katelyn :)"
"20g is a LOT, so I use half a scoop in the morning and the second half in the afternoon and can’t tell it’s there. Been 10 days. Hair still the same, but my knuckles don’t crack as much when I type. Will reorder for sure. Amazing company and products."
"New product, first bag. Texture is fine in a smoothie. I was worried it would clump like cheaper collagen. It didn’t. Can’t speak to results yet. Label is simple, which I like."
"Nadia sent it to me a month ago - here's my review :). Three weeks in. Taking it every morning. Cuticles look less ragged and my left knee doesn’t seem as stiff as much on stairs. I’m not stopping this. MY NEW FAVE!"
"Switched from a sweetened collagen. This one is cleaner. Mixes in a shaker bottle with water. Skin on my hands looks less dry. Nails grew a little but I also started biotin around the same time."
"Pouch arrived fast. I add it to oatmeal with my whey. No weird smell. I've been using the Isolate and PROATS for years now. That’s why I bought it."
"Good for an unflavored collagen. No bloating, which I get with some powders. Knees after pickleball feel better the next morning. Only been using it two weeks and finishing the bag, but I’ll buy again."
"Heather sent me a bag to review. I've been a customer for years. First time trying JKP collagen. I already trusted the whey. Same no-junk formula. Mixes into coffee if I use a frother. my back and wrists feel less stiff and sore after pull-ups. Small change, but I notice it - Get yours!"
"mixability is excellent, pouch is sturdy, no additives I can taste. Hair and nails unchanged so far. Joints after long walks feel a bit better. I’ll give it the full bag and review again but so far, I LOVE IT"
"John did it again!! Wife and I both started in in July. She cares about skin. I care about shoulders and knees. Two weeks later she says her makeup sits better and I can squat without that stiffness in my left knee. half way done with the bag and we’re staying on it"
STRENGTH & BEAUTY
GRASS FED COLLAGEN PEPTIDES
ADVANCED FORMULA
Vitamin C + Hyaluronic Acid
JOINT FLEXIBILITY | LIGAMENT SUPPORT
SKIN HYDRATION | HAIR & NAIL HEALTH
SKIN & HAIR HYDRATION
Collagen for repair. Hyaluronic acid for hydration. Vitamin C for absorption.
Our advanced formula combines our grass-fed, pasture raised collagen peptides with 100% of your Daily Recommended Value of Vitamin C, and 200mg of Hyaluronic Acid.
Top three beauty benefits of taking our Advanced Formula Collagen Peptides
Why Hyaluronic Acid
Skin Hydration: 200mg hyaluronic acid (HA) in every daily scoop is ideal for skin hydration and moisture retention. HA delivers and holds water in the matrix between collagen fibers to increase skin moisture, plumpness, joint hydration and comfort.
Skin firmness & elasticity
Hydrolyzed collagen peptides is the ingredient most studied and researched for elasticity and wrinkle reduction. Most studies show clear improvements within 8–12 weeks of daily use.
90mg vitamin C (100% DV for adult men) is the cofactor your body needs to assemble those peptides into stable collagen — Vitamin C is the secret ingredient that helps you get the most out of your collagen protein.
Hair & nail health
Hair follicles and nails sit in a collagen-rich matrix. Daily peptides plus vitamin C support that tissue over consistent daily use. Expect stronger nails and better hair resilience with a scoop-a-day of this grass fed collagen peptides.
JOINT FLEXIBILITY
LIGAMENT SUPPORT
SKIN HYDRATION
HAIR AND NAIL HEALTH
JOINTS, LIGAMENTS & RECOVERY
A 20g serving of grass fed collagen peptides is formulated for connective tissue repair and recovery - Not a vanity dose
Our advanced formula is made with only three, highly effective and purposeful ingredients. No fillers, sweeteners or flavoring agents. Each scoop is designed to provide you an effective dose of 20g collagen peptides, with 90mg Vitamin C and 200mg Hyaluronic Acid.
Top three strength & recovery benefits of taking our collagen peptides
Joint flexibility
Cartilage and joint tissue are collagen-heavy. Trials on hydrolyzed peptides (often 15g, some 20g daily) consistently show improvement in comfort, range of motion and overall function.
HA is often studies in synovial fluid research. Research shows positive effects of oral supplementation on joint lubrication and connective tissue repair.
Our advanced formula provides structure (20g of Collagen Peptides) + lubrication (200mg of Hyaluronic Acid) in one daily scoop!
Ligament support
Ligaments are dense collagen. We formulated our grass fed Collagen Peptides to give you a full 20g dose plus 90mg of vitamin C; a potent formula for connective-tissue recovery and repair after intensive training.
Training recovery
Research shows that a dose of 20g collagen peptides is the effective daily dose to support sore joints and connective tissue repair after lifting or exercise. When combined with 90mg of Vitamin C (100% DRV for adults), collagen creation becomes quicker and absorption faster.
A CLEANER COLLAGEN
INGREDIENTS LIST
FORMULATED FOR STRENGTH & BEAUTY
MADE WITH ONLY THREE INGREDIENTS
AN ADVANCED FORMULA FOR
STRENGTH & BEAUTY
No Sugars | No Flavors | Lactose Free | GMO Free
LACTOSE FREE
SOY FREE
GMO FREE
UNSWEETENED
UNFLAVORED
HEAVY METALS TESTED
ADDITIVES FREE
COLLAGEN PEPTIDES (20g per serving)
Each serving is packed with a complete 20g of hydrolyzed grass-fed collagen peptides — a full effective serving, backed by the latest research.
Not your typical 5–10g dusting of collagen "vanity" dose!
Hydrolyzed means the collagen is broken into smaller peptides so it mixes clean and is easier to absorb.
our complete collagen peptides peptides supply glycine, proline, and hydroxyproline, the amino acids your body uses to support skin, joints, ligaments, and other connective tissue. Take one scoop daily and stay consistent; the research shows benefits start being noticed around 8 weeks.
VITAMIN C (90mg per serving)
Every scoop includes 90mg of vitamin C — 100% Daily Value for adults. Vitamin C is the ingredient your body needs to turn collagen peptides into stable, usable collagen. Without enough of it, collagen supplementation falls short and your collagen is simply wasted.
Adding 100% of your daily recommended amount in each serving means you’re getting the most out of our collagen without relying on a separate vitamin pill or having to worry if you are getting enough Vitamin C through your food.
One scoop, daily. Easy - Convenient - Effective.
Hyaluronic Acid (200mg per serving)
We also add 200mg of Hyaluronic Acid per serving.
HA is the water-holding gel in skin and joint fluid — it sits in the matrix between collagen fibers and helps with hydration and cushion. Oral HA studies show that about 80–240mg daily is the ideal amount to maximize joint and skin hydration.
Powerful ingredients that work amazingly together.
BUNDLE FOR INCREASED BENEFITS
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Original price was: $113.98.$102.58Current price is: $102.58.
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ORIGINS MATTER
John's Killer Protein® - Grass Fed Collagen Peptides is sourced in Germany, France and Sweden. Formulated, blended and packaged in the USA.
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We believe the source of our raw ingredients plays a big role in the quality & efficacy of these ingredients. Each batch of our Grass Fed Collagen Peptides is made without any additives, emulsifiers, sweeteners or sugars, lecithins or seed oils.
Our vendor partners throughout Europe have developed a strict and safe process for manufacturing our ultrapure creatine and taurine ingredients. Germany, France and Sweden are known to have some of the highest manufacturing, handling and storage standards in the health and supplement industry. This, plus regular internal and external quality controls helps to ensure that the quality of each production batch is the best possible. Each batch we produce is tested for heavy metals and other contaminants. You can view our latest 3rd Party Lab Reports HERE.
When you choose John's Killer Protein® - Grass Fed Collagen Peptides you know you are receiving a premium product with premium-quality ingredients of trusted origin.
John's Killer Protein® - Grass Fed Collagen Peptides is sourced in the EU, formulated, blended and packaged in the USA.
WHAT TO EXPECT WITH COLLAGEN PEPTIDES
when using John's Killer Protein®
GRASS FED COLLAGEN PEPTIDES
RESULTS WITH daily consistent use
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What Research Says
GRASS FED COLLAGEN PEPTIDES
ADVANCED FORMULA
Vitamin C + Hyaluronic Acid
JOINT FLEXIBILITY | LIGAMENT SUPPORT
SKIN HYDRATION | HAIR & NAIL HEALTH
JOINT FLEXIBILITY
LIGAMENT SUPPORT
SKIN HYDRATION
HAIR AND NAIL HEALTH
SUPPORTED BY CLINICAL RESEARCH
OUR ADVANCED FORMULA BACKED BY STUDIES & MEDICAL RESEARCH
JOINT COMFORT
Athletes who took a daily dose of hydrolyzed collagen daily for 24 weeks reported less joint pain when walking, standing, and at rest than the placebo group.
View Studies
1 - Clark et al., Current Medical Research and Opinion 2008 — PubMed
Ten grams a day of bovine type I and III collagen peptides for eight weeks lowered WOMAC pain, stiffness, and function scores versus placebo in adults with osteoarthritis. The product used hydrolyzed peptides from bovine hide.
2 - Genc et al., Journal of Clinical Medicine 2025 — PubMed · Full text
Bovine collagen peptides at 2.5–10 g daily for 90 days improved knee osteoarthritis scores compared with placebo. A more concentrated peptide at 2.5 g performed in the same range as 10 g of a standard peptide on several measures.
3 - Kumar et al., Journal of Orthopaedic Surgery and Research 2024 — PubMed · Full text
Two hundred milligrams of oral HA daily for a year, paired with quad strengthening, improved knee osteoarthritis scores more than exercise plus placebo in people 70 and under. The benefit was smaller in older participants.
4 - Tashiro et al., The Scientific World Journal 2012 — PubMed
Sixty days of 200 mg oral full-spectrum HA reduced knee pain scores versus placebo and cut how often people reached for NSAIDs. Function and range of motion also improved from baseline in the HA group.
5 - Cicero et al., Diseases 2020 — PubMed · Full text
This review pulls together several oral-HA knee trials, including 200 mg daily protocols, and finds a consistent pattern of less pain and stiffness. It is a summary paper, not a new experiment.
6 - Oe et al., Nutrition Journal 2016 — Full text
SKIN HEALTH
Daily collagen peptides with vitamin C and hyaluronic acid, thickened skin density and reduced wrinkle volume over 16 weeks versus placebo.
View Studies
1 - Žmitek et al., Nutrients 2024 — PubMed · Full text
A daily dose of collagen plus vitamin C and hyaluronic acid improved elasticity, skin smoothness, and density over 12–16 weeks. Some of those gains were still measurable four weeks after people stopped taking it.
2 - Samadi et al., Journal of Cosmetic Dermatology 2023 — Wiley
A hydrolyzed-collagen plus vitamin C drink taken for 12 weeks increased hydration and elasticity and reduced wrinkle roughness versus placebo. Imaging also showed less fragmentation in the skin’s collagen network.
3 - Gibson et al., 2024 — PubMed · Full text
Women taking 100 mg or 200 mg of oral hyaluronic acid per day had better skin hydration within two to eight weeks, in both younger and older groups. The 200 mg dose is the amount most relevant if your formula uses that level.
4 - Gao et al., Skin Research and Technology 2023 — PubMed
Four weeks of 200 mg daily full-spectrum oral HA improved hydration by about 11% and cut wrinkle depth and volume. Elasticity and firmness also improved over the same timeframe.
5 - Michelotti et al., European Journal of Dermatology 2021 — PubMed
Twelve weeks of 120 mg oral HA improved facial moisture, reduced water loss through the skin, and softened wrinkle scores versus placebo. Effects showed up by week 8 and held through week 12.
COLLAGEN WITH PROTEIN
A whey with collagen shake after lifting raised both muscle-fiber protein synthesis and connective-tissue protein synthesis. This blend covers both muscle and joint recovery.
View Studies
1 - Aussieker et al., Medicine & Science in Sports & Exercise 2025 — PubMed · Full text
Whey by itself lets blood glycine fall after a workout. Adding just 5 g of collagen to 25 g of whey was enough to stop that drop.
2 - Aussieker et al., International Journal of Sport Nutrition and Exercise Metabolism 2024 — PubMed
Over eight weeks of the same lifting program, 30 g whey plus 10 g collagen built more lean mass than 30 g whey alone (about 2.66 kg vs 1.59 kg). Strength gains followed the same pattern.
3 - Combined whey + collagen training trial, 2026 — PubMed
IMPORTANCE OF VITAMIN C
Collagen taken with 50 mg of vitamin C an hour before exercise doubled a blood marker of new collagen production versus placebo. Vitamin C accelerates new collagen production.
View Studies
1 - Shaw et al., American Journal of Clinical Nutrition 2017 — PubMed · Full text
Trained men took 0, 15, or 30 g of hydrolyzed collagen with 50 mg of vitamin C before squats. The 30 g dose raised whole-body collagen synthesis vs none.
2 - Lee et al., Journal of Nutrition 2024 — DOI
Pooled trials show vitamin C can blunt some oxidative-stress and IL-6 spikes after a hard session.
3 - Righi et al., European Journal of Nutrition 2020 — PubMed
RECOVER STRONGER WITH COLLAGEN
HEALTHIER SKIN WITHIN 16 WEEKS
A CLEANER COLLAGEN
BUNDLE FOR INCREASED BENEFITS
Bundle and Save
Original price was: $113.98.$102.58Current price is: $102.58.
Bundle and Save
Original price was: $110.98.$99.88Current price is: $99.88.
Paul K. –
John did it again!! Wife and I both started in in July. She cares about skin. I care about shoulders and knees. Two weeks later she says her makeup sits better and I can squat without that stiffness in my left knee. half way done with the bag and we’re staying on it
Sandra G. –
mixability is excellent, pouch is sturdy, no additives I can taste. Hair and nails unchanged so far. Joints after long walks feel a bit better. I’ll give it the full bag and review again but so far, I LOVE IT
Brian Callaghan –
Heather sent me a bag to review. I’ve been a customer for years. First time trying JKP collagen. I already trusted the whey. Same no-junk formula. Mixes into coffee if I use a frother. my back and wrists feel less stiff and sore after pull-ups. Small change, but I notice it – Get yours
Erik F. –
Good for an unflavored collagen. No bloating, which I get with some powders. Knees after pickleball feel better the next morning. Only been using it two weeks and finishing the bag, but I’ll buy again.
Charlene B. –
Pouch arrived fast. I add it to oatmeal with my whey. No weird smell. I’ve been using the Isolate and PROATS for years now. That’s why I bought it.
Tina H –
Switched from a sweetened collagen. This one is cleaner. Mixes in a shaker bottle with water. Skin on my hands looks less dry. Nails grew a little but I also started biotin around the same time.
Dana W. –
Nadia sent it to me a month ago – here’s my review :). Three weeks in. Taking it every morning. Cuticles look less ragged and my left knee doesn’t seem as stiff as much on stairs. I’m not stopping this. MY NEW FAVE!
Sandy Nguyen –
New product, first bag. Texture is fine in a smoothie. I was worried it would clump like other collagens. It didn’t. Can’t speak to results yet. Label is simple, which I like.
Karen Brooks G. –
like another person said here, it’s a BIG scoop so I use half a scoop in the morning and the second half in the afternoon and can’t tell it’s there. Been 10 days. Hair still the same, but my knuckles don’t crack as much when I type. Will reorder for sure. Amazing company and products.
Katelyn –
Yay! finally they offer Collagen. been using this for two weeks, just love how easily it dissolves. I add the scoop to my protein shake – been using the lactose free isolate for years – thank you Nadia, Katelyn 🙂
JOhn Gordon –
20g is a lot in one coffee and I end up splitting it into servings. taste disappears with my coffee creamer, dissolves easily with no clumping. Love this brand and how clean their products are. Will buy again
Erin J. –
Mixes well. taste is not gross like other collagens I’ve tried. super fine powder that dissolves and doesn’t clump – amazing with my morning coffee
Mike Halbert –
Bought it because I already use JKP whey. Same clean approach. Dissolves in cold water if I shake it for 20 seconds. I mix it with my JKP green Isolate.
Rebecca Correy –
Second week on the new collagen. I stir one scoop into yogurt. No grit, no sweetener aftertaste. Skin around my cheeks looks a little less dry in the morning. Too soon for nails, but I’ll keep using it.
Alex P. –
Just started this last week. Mixes into my morning coffee with almost no taste, which is exactly what I wanted but the pouch quality and clean label made me switch from the flavored brand I was using.
Erica –
Just ordered. Been waiting for this!! If it’s anything like the other products from this brand, I’ll be a happy customer 🙂