21st Century Cranberry Plus Probiotic, 60 Tablets supplement bottle
21st Century

Cranberry Plus Probiotic, 60 Tablets

What We Researched
9 active ingredients analyzed · 11 inactive ingredients decoded · 2 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
39
Product Score Poor
76
Brand Score Fair

Product Analysis

Transparency Very Good

Supplement Facts

IngredientAmount% DV
Vitamin C (as Ascorbic Acid) 60 mg 67%
Calcium (as Dicalcium Phosphate) 110 mg 8%
Cranberry (Vaccinium macrocarpon) Whole Fruit Powder 500 mg **
Probiotic Proprietary BlendLactobacillus acidophilus, Streptococcus thermophilus, Bifidobacterium bifidum, Lactobacillus salivarius (300 million active cultures per serving at time of manufacture) 30 mg **
Bioavailability Fair

Absorption Rating

  • Vitamin C (as Ascorbic Acid) Fair
  • Calcium (as Dicalcium Phosphate) Fair
  • Cranberry (Vaccinium macrocarpon) Whole Fruit Powder Fair
  • Probiotic Proprietary BlendLactobacillus acidophilus, Streptococcus thermophilus, Bifidobacterium bifidum, Lactobacillus salivarius (300 million active cultures per serving at time of manufacture) Fair
Other Ingredients Poor

Fillers & Additives

  • Cellulose
  • Stearic Acid
  • Silicon Dioxide
  • Croscarmellose Sodium
  • Artificial colors (fd&c blue #2 carmine, fd&c red #40) High
  • Inulin
  • Magnesium Silicate
  • Magnesium Stearate
  • Polyethylene Glycol Low
  • Polyvinyl Alcohol
  • Titanium Dioxide High
Efficacy Very Poor

Dosage Analysis

  • Vitamin C (as Ascorbic Acid) 60 mg Under-dosed
  • Calcium (as Dicalcium Phosphate) 110 mg Under-dosed
  • Cranberry (Vaccinium macrocarpon) Whole Fruit Powder 500 mg High
  • Probiotic Proprietary BlendLactobacillus acidophilus, Streptococcus thermophilus, Bifidobacterium bifidum, Lactobacillus salivarius (300 million active cultures per serving at time of manufacture) 30 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 5
Total Carbohydrate < 1 g <1%‡
Dietary Fiber < 1 g 2%‡
Total Sugars < 0.5 g **
Includes 0 g Added Sugars 0%‡
Vitamin C (as Ascorbic Acid) 60 mg 67%
Calcium (as Dicalcium Phosphate) 110 mg 8%
Cranberry (Vaccinium macrocarpon) Whole Fruit Powder 500 mg **
Probiotic Proprietary BlendLactobacillus acidophilus, Streptococcus thermophilus, Bifidobacterium bifidum, Lactobacillus salivarius (300 million active cultures per serving at time of manufacture) 30 mg **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Artificial colors (fd&c blue #2 carmine, fd&c red #40) Unknown
Inulin Safe

It is used as a prebiotic fiber and to add bulk to supplements.

Magnesium Silicate Generally_safe

It is used to improve powder flow and prevent clumping.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Polyethylene Glycol Caution

It is used as a binder, coating agent, or to improve solubility.

Polyvinyl Alcohol Generally_safe

It is used as a coating for tablets or capsules.

Titanium Dioxide Caution

Used as a whitening agent in tablet coatings and capsules.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$12$11$10$9$8 Mar 12 $9.99
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
21st Century

Founded 1991 · Tempe, Arizona, United States · 231 products · 21stcenturyvitamins.com/

Certifications

2 certifications
Consumerlab Verified
Nsf Gmp Verified Source

Transparency

4 claims
Third Party Testing Claim — Claimed Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source

Violation History

4 incidents
Prop 65 Lead2021-06-22Source
Recall Vitamin D3 5000 IU Tablets2021-05-19Source
Lawsuit False advertising of Glucosamine/Chondroitin supplements.2012Source
Prop 65 Lead2008-12-23Source
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Frequently Asked Questions
Is 21st Century Cranberry Plus Probiotic, 60 Tablets a good supplement?

21st Century Cranberry Plus Probiotic, 60 Tablets received a product quality score of 39/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 9 active ingredients with 30 servings per container. Of the 11 inactive ingredients, 6 are rated safe and 2 are flagged for review. The manufacturer, 21st Century, holds a brand trust score of 76/100 with 2 verified certifications including Consumerlab, Nsf Gmp.

What are the ingredients in 21st Century Cranberry Plus Probiotic, 60 Tablets?

21st Century Cranberry Plus Probiotic, 60 Tablets contains 9 active ingredients: Calories (5), Total Carbohydrate (< 1 g), Dietary Fiber (< 1 g), Total Sugars (< 0.5 g), Includes 0 g Added Sugars, Vitamin C (as Ascorbic Acid) (60 mg), and 3 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is 21st Century Cranberry Plus Probiotic, 60 Tablets safe to take?

21st Century Cranberry Plus Probiotic, 60 Tablets has been analyzed for ingredient safety across all its components. Of 11 inactive ingredients, 6 are rated safe. 2 ingredients are flagged for review: Polyethylene Glycol, Titanium Dioxide. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is 21st Century a trustworthy supplement brand?

21st Century receives a brand trust score of 76/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1991 and headquartered in Tempe, Arizona, United States, the company offers 231 products in their lineup. They hold 2 verified certifications including Consumerlab, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: 21st Century has 4 historical regulatory incidents on record, which are factored into the trust score.

Do probiotics make you poop?

The effects of supplements on the body vary based on the specific ingredients, dosages, and individual factors. Quality clinical research is the best guide for understanding what supplements actually do versus marketing claims. Be cautious of products that promise dramatic results — legitimate supplements support health gradually, not overnight. Checking the ingredient label, understanding the dosages, and reviewing the scientific evidence are essential steps before starting any supplement. GoodSupp evaluates over 250,000 products based on published research and evidence-based criteria.

What are probiotics good for?

Probiotics Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding probiotics good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

Do probiotics help with constipation?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.