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StayStrong+ Joint and Muscle Powder

Collagen, creatine, and magnesium powder for strength and joint health.*

Protein & Sports Nutrition
Pain, Bone & Joint
A person holding a StayStrong+ Joint & Muscle Powder packets box beside the headline “Move better. Recover stronger.” on a white background.
A hand holding two StayStrong+ Joint & Muscle Powder packets next to a customer testimonial from Sam with five gold stars, describing using the powder in protein shakes to support muscle maintenance and post‑workout recovery.
A four‑part timeline listing expected benefits: joint comfort and flexibility in one week; muscle strength and recovery in four to five weeks; mental performance in six weeks; and ongoing support for joint and immune health with continued use.
Text listing ingredients found in each scoop, including UC‑II® Undenatured Collagen Type II for joint mobility and flexibility, creatine monohydrate for strength and recovery, magnesium for muscle function and relaxation, and vitamins D and C for bone and collagen support.

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Why you'll love StayStrong+ Joint & Muscle Collagen Powder

Your body works as one system — your supplements should, too. Our StayStrong+ powder formula with creatine, collagen, and magnesium supports joint comfort, muscle strength, and post-exercise recovery in one daily scoop, so you can keep doing more of what matters.*

  • Feel a difference in joint comfort in as little as 7 days^
  • Supports joint mobility, flexibility, and healthy cartilage*
  • Boosts muscle strength, endurance, and recovery post-exercise in 4-5 weeks‡
  • Fuels mental performance within 6 weeks.*‡
  • Powers your strength and fortifies your joints with ongoing daily use*
  • Unflavored and mixes easily into water, coffee, or your post-workout shake
  • Non-GMO and gluten-free
  • Satisfaction guaranteed: love it within 60 days or your money back

The Science Inside

StayStrong+ combines clinically studied UC-II collagen and creatine for strength and recovery, plus dual-form magnesium, Vitamin C, and Vitamin D.*

  • UC-II® (Undenatured Collagen Type II) is backed by 10+ clinical studies, making it one of the most researched collagen ingredients available.* Most collagens are broken down by digestive enzymes before the body can put them to work. UC-II keeps its natural structure intact, meaning enough of it survives digestion to reach the gut. Here, it works with your immune system to support joint cartilage health.* Trials have shown a difference in joint comfort in as little as 7 days.*^
  • Creatine Monohydrate helps your muscles produce rapid energy during intense activity, supporting strength, power output, and recovery between sessions.* Our formula delivers 5g per serving, the dose used in clinical research, to support muscle strength and endurance in 4-5 weeks.*‡
  • Vitamin C supports collagen formation and connective tissue integrity throughout the body.*

Allergen Information

Non-GMO | Gluten-free | Unflavored | No artificial flavors

^In clinical research, participants began to feel a difference in joint comfort in as little as 7 days.

‡ Onset of Individual results may vary

IngredientsAmount Per Serving% Daily Value
Serving Size1 Scoop
Servings Per Container30
Vitamin C (as asorbic acid)100 mg111%
Vitamin D (as cholecalciferol)15 mcg75%
Magnesium (as magnesium amino acid chelate and magnesium bisglycinate)100 mg24%
Creatine monohydrate5 g**
Standardized Cartilage (UC-II®)†40 mg**

Other ingredients: Silicon dioxide.

SKU: SSPJM30

Mix 1 scoop (6.2 g) with 8 oz of water or beverage of your choice. Take one serving per day, or as directed by your healthcare practitioner.

Dry Place

Frequently bought together

  • StayStrong+ Brain and Body Collagen and Creatine Powder

    A daily collagen and creatine powder that supports brain energy, lean muscle, and hair, skin, and nail health.*

    4.6
    StayStrong+ Brain and Body Collagen and Creatine Powder

  • StayStrong+ 4-in-1 Collagen Whole Body Chew

    Four types of collagen in one chew, supporting joints, movement, and skin.*

    4.3

    NEW

    StayStrong+ 4-in-1 Collagen Whole Body Chew

  • MagActive® Magnesium Muscle Powder

    Magnesium powder for muscle soreness, hydration, and recovery.

    4.3

    NEW!

    MagActive® Magnesium Muscle Powder

Frequently Asked Questions

Yes, collagen is one of the main building blocks of joint cartilage. The right kind can support joint comfort and flexibility.* StayStrong+ Joint & Muscle uses UC-II, a collagen backed by 10+ clinical studies specifically for joint cartilage health.* People reported feeling a difference in joint comfort in as little as 7 days.*^

Explore our full range of muscle, bone & joint support supplements.

Most collagens are broken down by digestive enzymes before the body can put them to work. UC-II is different. It keeps its natural structure intact, meaning enough of it survives digestion to reach the gut, where it works with your immune system to support joint cartilage health.* It's backed by 10+ clinical studies for joint comfort and flexibility, where people began to feel results in as little as 7 days.*^

StayStrong+ uses 40 mg of UC-II collagen per serving, the clinically studied dose. Try it today, backed by our 60-Day Money Back Guarantee.

Collagen alone isn't a muscle recovery ingredient. But StayStrong+ Joint & Muscle pairs UC-II collagen with 5 g of creatine monohydrate, the clinical dose for supporting muscle strength and post-exercise recovery.* Our formula also includes a dual-form magnesium blend, Vitamin C, and Vitamin D.

Try StayStrong+ today or explore our full range of post-workout recovery supplements.

The most important thing is taking it consistently at the same time each day. StayStrong+ Joint & Muscle Collagen Powder is unflavored and mixes into anything, so it works with your morning coffee, water, or your shakes. Consistent daily use helps build results.*

Results depend on what you're focused on:

- Joint comfort: Some people begin to feel a difference in as little as 7 days*^

- Muscle strength and endurance: Results can build over 4-5 weeks of consistent daily use*‡

- Cognitive performance: Fuels mental performance in 6 weeks*‡

- Ongoing strength and resilience: Continues to build with daily use over time*

For more joint support, explore our full range of muscle, bone & joint health supplements.

For 40+ years, Metagenics® has combined clinical science, rigorous testing, and practitioner expertise to create health supplements you can trust, and we guarantee that what’s on the label is what’s inside. Here’s what that commitment looks like:

• 200K+ quality tests yearly: We test for identity, quality, consistency, and strength across our products and ingredients.

• Triple-tested formulas: We test at the ingredient, formula, and finished product level for label claims and contaminants, including heavy metals and microorganisms.

• Independently verified: We voluntarily participate in TESTED by SuppCo, which anonymously buys and independently tests our products.

• High standards, inside & out: Produced in GMP-certified facilities and Certified B Corp for social and environmental accountability.

• Practitioner trusted: The #1 Doctor-Recommended Professional Supplement Brand★, trusted by 50K healthcare practitioners.

• Risk free: Backed by our 60-Day Money Back Guarantee.

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