GNC Herbal Plus Cranberry & D-Mannose supplement bottle
GNC Herbal Plus

Cranberry & D-Mannose

What We Researched
4 active ingredients analyzed · 2 inactive ingredients decoded · 2 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
65
Product Score Fair
75
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Total Carbohydrates 1 g 0%
Vitamin C (as Ascorbic Acid) 60 mg 100%
D-Mannose 1000 mg
Cranberry juice powder 400 mg
Bioavailability Good

Absorption Rating

  • Total Carbohydrates Fair
  • Vitamin C (as Ascorbic Acid) Fair
  • D-Mannose Good
  • Cranberry juice powder Fair
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Cellulose
Efficacy Very Poor

Dosage Analysis

  • Vitamin C (as Ascorbic Acid) 60 mg Under-dosed
  • D-Mannose 1000 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Total Carbohydrates 1 g 0%
Vitamin C (as Ascorbic Acid) 60 mg 100%
D-Mannose 1000 mg
Cranberry juice powder 400 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$32$31$30$29$28 Mar 12 $29.99
GNC

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

Brand Trust Report
GNC Herbal Plus

Founded 1935 · Pittsburgh, Pennsylvania, U.S. · 117 products · gnc.com/

Certifications

2 certifications
Informed Sport Verified Source
Nsf Certified For Sport Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
In House Testing — Claimed Source

Violation History

4 incidents
Recall GNC Women's 30+ Vitapak2025-06-13Source
Lawsuit Mislabeled magnesium content in 'Super Magnesium' supplements.2024Source
Lawsuit Selling Vitamin E Skin Oil that was mostly vegetable oil.2020Source
Lawsuit Unfair discontinuation of the Gold Card discount program.2016Source
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Frequently Asked Questions
Is GNC Herbal Plus Cranberry & D-Mannose a good supplement?

GNC Herbal Plus Cranberry & D-Mannose received a product quality score of 65/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 4 active ingredients with 30 servings per container. All 2 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, GNC Herbal Plus, holds a brand trust score of 75/100 with 2 verified certifications including Informed Sport, Nsf Certified For Sport.

What are the ingredients in GNC Herbal Plus Cranberry & D-Mannose?

GNC Herbal Plus Cranberry & D-Mannose contains 4 active ingredients: Total Carbohydrates (1 g), Vitamin C (as Ascorbic Acid) (60 mg), D-Mannose (1000 mg), Cranberry juice powder (400 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is GNC Herbal Plus Cranberry & D-Mannose safe to take?

GNC Herbal Plus Cranberry & D-Mannose has been analyzed for ingredient safety across all its components. All 2 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is GNC Herbal Plus a trustworthy supplement brand?

GNC Herbal Plus receives a brand trust score of 75/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1935 and headquartered in Pittsburgh, Pennsylvania, U.S., the company offers 117 products in their lineup. They hold 2 verified certifications including Informed Sport, Nsf Certified For Sport. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: GNC Herbal Plus has 4 historical regulatory incidents on record, which are factored into the trust score.

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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.