🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 43% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

1 Packet(s) Serving Size
60 Servings
Other Combinations Product Type
43% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
10 mg (11% DV)
Calcium
80 mg (6% DV)
Potassium
234 mg (5% DV)
📊 Market median: 1000.0mg (1115 products) 📚 22 studies (Tier A: 0, B: 9)
This product: 1500mg
📊 Market median: 600.0mg (79 products) 📚 24 studies (Tier A: 0, B: 6)
This product: 1200mg
📊 Market median: 1000.0mg (2 products)
This product: 800mg
📊 Market median: 450.0mg (254 products) 📚 240 studies (Tier A: 0, B: 100)
This product: 100mg

Other Ingredients

Gelatin

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

Suggested use Consume one packet (6 capsules) daily - preferably with food. You can decrease your intake based upon your needs and as guided by your health care provider.

⚠️ Warnings & Precautions

Contains an ingredient derived from the shells of shellfish (shrimp, crab and crawfish).

🧪 Formulation Notes

100% Solar production Zero carbon footprint Maximum Joint Effort is our most comprehensive formula to support the structure and function of our joints. We provide optimum potencies and balance of four key ingredients for the repair and maintenance of healthy joint tissue.

We begin with clinically established levels of the most well-researched natural ingredients for joint health: Glucosamine Sulfate (1,500 mg) and Chondroitin Sulfate (1,200 mg). These two ingredients are only present in their sulfate form given the essential role that sulfur plays in their benefits. We further enhance their benefits with an ideal source of organic bioavailable sulfur from MSM (Methylsulfonymethane). We also include the naturally soothing benefits of Turmeric from our uniquely bioavailable curcuminphospholipid complex. Turmeric and its curcuminoids have been recognized for centuries and are responsible for along list of benefits throughout the body, particularly their soothing relief to our hardworking joints. Glucosamine and Chondroitin have been the subject of thousands of scientific studies and as a result, are viewed as the first line of natural defense for joint tissues; however, unlike ordinary joint products, we do not use the unproven Glucosamine HCl (Hydrochloride). We only use the form established in thee scientific literature - the Sulfate form. We also use our uniquely sodium-free Chondroitin Sulfate, which provides 80 mg of essential calcium. Typical joint products use inferior sources of both glucosamine and chondroitin, which do not possess their clinically established benefits and can adversely affect blood pressure by adding unnecessary sodium. In short, Glucosamine, Chondroitin and the sulfur from their Sulfate form, as well as from MSM, provide the essential structural "bricks and mortar" of healthy joints. Our joints endure a lifetime of wear and tear on our behalf and these three structural ingredients, along with our uniquely soothing Turmeric curcumin-phospholipid complex, provide maximum benefits to joint structure, function and health.

The Perma-Fresh Packet. To retain potency, vitamins must be protected from light, moisture and oxygen. Sadly, ordinary packeting materials do not effectively do so. Our unique Perma-Fresh Packet is constructed from multiple layers of specialized materials to safeguard the potency of your vitamins and provide the protection they, and you, deserve.

Since 1979, unsurpassed purity, quality and efficacy. 100% Solar Production Zero Carbon Footprint

All Sulfate 1,500 mg Glucosamine Sulfate 1,200 mg Chondroitin Sulfate M.S.M. (Methylsulfonylmethane) Curcumin Phospholipid Complex

Sodium-free

Ultra-Mild

Contains no milk, soy, yeast, corn, wheat, gluten, sodium, salt, sugar, starch, cholesterol, emulsifier, wax, binder, filler, excipient, lubricant, coating, diluent, flowing agent, color, flavor, sweetener, preservative or genetically modified (GMO) ingredients. Contains no additives of any kind

Additional Information

For over 40 years, ProCaps Laboratories have been producing exceptionally pure and effective products to meet the uncompromising standards of health-conscious individuals and medical professionals. ProCaps is one of very few companies that actually make their own products and do so in their own US-based, 100% solar-powered facility. The ProCaps facility is among the world's largest private solar installations, possessing zero carbon footprint, which makes ProCaps products perfect for both you and the planet.

Questions? Reorders? 800.800.1200 Procaps.com

For questions about the use of this product call 800.800.1200.

Product Details

DSLD Entry Date 2025-06-25
Product Type Other Combinations
Form Capsule
Brand ProCaps
DSLD ID 331577
Data Updated 2026-04-11

Research Evidence

371 Research Sources
54 Avg Quality Score
148 Meta Analysis
82 Systematic Review
71 Rct
62 Clinical Trial
2 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Other
1 Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
View all evidence for Vitamin C →

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