Source Naturals Fibro-Response™, 180 Tablets supplement bottle
Source Naturals

Fibro-Response™, 180 Tablets

What We Researched
38 active ingredients analyzed · 5 inactive ingredients decoded · 1 brand certification checked · 3 retailers compared · Last updated: Mar 2026
79
Product Score Fair
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin A (as beta-carotene) 1,500 mcg 167%
Vitamin C (as ascorbic acid) 50 mg 56%
Vitamin D-3 (as cholecalciferol) (200 IU) 5 mcg 25%
Thiamin (vitamin B-1) 30 mg 2,500%
Riboflavin (vitamin B-2) 30 mg 2,308%
Niacin (as niacin 37 mg & niacinamide 13 mg) 50 mg 313%
Vitamin B-6 (as pyridoxine HCl) 40 mg 2,353%
Folate (200 mcg folic acid) 340 mcg DFE 85%
Pantothenic Acid (as calcium D-pantothenate) 50 mg 1,000%
Magnesium (as magnesium malate & oxide) 300 mg 71%
Zinc (as zinc citrate & zinc methionine sulfate complex [OptiZinc®]) 15 mg 136%
Selenium (as L-selenomethionine & sodium selenite) 100 mcg 182%
Copper (as copper citrate) 1 mg 111%
Manganese (as manganese citrate) 12 mg 522%
Chromium (as chromium polynicotinate [ChromeMate®]) 100 mcg 286%
Molybdenum (as molybdenum amino acid complex) 90 mcg 200%
Malic Acid (as malic acid & magnesium malate) 1.2 g
MSM (methylsulfonylmethane [OptiMSM®]) 1.12 g
GABA (gamma-aminobutyric acid) 150 mg
Hops Cone Extract (Peluxan™)Yielding 30 mg Humulex™ alpha-acids 100 mg
N-Acetyl L-Cysteine 75 mg
Dandelion Whole Plant / Root Extract 75 mg
Silymarin (from milk thistle seed extract) 70 mg
Ginko Leaf Extract (24% flavone glycosides & 6% terpene lactones) 60 mg
alpha-Lipoic Acid 50 mg
Ginger Root 30 mg
Bupleurum Root Extract 30 mg
Asian Ginseng Root Extract 25 mg
Kudzu Root Extract 15 mg
Astragalus Root Extract 15 mg
Skullcap Aerial Parts 15 mg
Cassia Bark (Cinnamomum aromaticum) 15 mg
Coenzyme Q10 (ubiquinone) 15 mg
Licorice Root Extract 10 mg
Black Pepper Fruit Extract (BioPerine®) 3 mg
Bioavailability Good

Absorption Rating

  • Vitamin A (as beta-carotene) Fair
  • Vitamin C (as ascorbic acid) Fair
  • Vitamin D-3 (as cholecalciferol) (200 IU) Good
  • Thiamin (vitamin B-1) Good
  • Riboflavin (vitamin B-2) Good
  • Niacin (as niacin 37 mg & niacinamide 13 mg) Good
  • Vitamin B-6 (as pyridoxine HCl) Fair
  • Folate (200 mcg folic acid) Fair
  • Pantothenic Acid (as calcium D-pantothenate) Good
  • Magnesium (as magnesium malate & oxide) Good
  • Zinc (as zinc citrate & zinc methionine sulfate complex [OptiZinc®]) Good
  • Selenium (as L-selenomethionine & sodium selenite) Good
  • Copper (as copper citrate) Good
  • Manganese (as manganese citrate) Good
  • Chromium (as chromium polynicotinate [ChromeMate®]) Good
  • Molybdenum (as molybdenum amino acid complex) Good
  • Malic Acid (as malic acid & magnesium malate) Fair
  • MSM (methylsulfonylmethane [OptiMSM®]) Good
  • GABA (gamma-aminobutyric acid) Poor
  • Hops Cone Extract (Peluxan™)Yielding 30 mg Humulex™ alpha-acids Good
  • N-Acetyl L-Cysteine Good
  • Dandelion Whole Plant / Root Extract Fair
  • Silymarin (from milk thistle seed extract) Good
  • Ginko Leaf Extract (24% flavone glycosides & 6% terpene lactones) Fair
  • alpha-Lipoic Acid Fair
  • Ginger Root Fair
  • Bupleurum Root Extract Fair
  • Asian Ginseng Root Extract Good
  • Kudzu Root Extract Fair
  • Astragalus Root Extract Poor
  • Skullcap Aerial Parts Fair
  • Cassia Bark (Cinnamomum aromaticum) Fair
  • Coenzyme Q10 (ubiquinone) Fair
  • Licorice Root Extract Good
  • Black Pepper Fruit Extract (BioPerine®) Good
Other Ingredients Excellent

Fillers & Additives

  • Stearic Acid
  • Silica
  • Modified Cellulose Gum
  • Magnesium Stearate
  • Acacia Gum
Efficacy Fair

Dosage Analysis

  • Vitamin A (as beta-carotene) 1,500 mcg Effective
  • Vitamin C (as ascorbic acid) 50 mg Under-dosed
  • Vitamin D-3 (as cholecalciferol) (200 IU) 5 mcg Under-dosed
  • Thiamin (vitamin B-1) 30 mg Effective
  • Riboflavin (vitamin B-2) 30 mg Effective
  • Niacin (as niacin 37 mg & niacinamide 13 mg) 50 mg High
  • Vitamin B-6 (as pyridoxine HCl) 40 mg Effective
  • Folate (200 mcg folic acid) 340 mcg DFE Under-dosed
  • Pantothenic Acid (as calcium D-pantothenate) 50 mg Effective
  • Magnesium (as magnesium malate & oxide) 300 mg Effective
  • Zinc (as zinc citrate & zinc methionine sulfate complex [OptiZinc®]) 15 mg Effective
  • Selenium (as L-selenomethionine & sodium selenite) 100 mcg Effective
  • Copper (as copper citrate) 1 mg Effective
  • Manganese (as manganese citrate) 12 mg High
  • Chromium (as chromium polynicotinate [ChromeMate®]) 100 mcg Effective
  • Molybdenum (as molybdenum amino acid complex) 90 mcg Effective
  • MSM (methylsulfonylmethane [OptiMSM®]) 1.12 g Under-dosed
  • GABA (gamma-aminobutyric acid) 150 mg Effective
  • Hops Cone Extract (Peluxan™)Yielding 30 mg Humulex™ alpha-acids 100 mg Effective
  • N-Acetyl L-Cysteine 75 mg Under-dosed
  • Dandelion Whole Plant / Root Extract 75 mg Under-dosed
  • Silymarin (from milk thistle seed extract) 70 mg Under-dosed
  • Ginko Leaf Extract (24% flavone glycosides & 6% terpene lactones) 60 mg Under-dosed
  • alpha-Lipoic Acid 50 mg Under-dosed
  • Ginger Root 30 mg Under-dosed
  • Asian Ginseng Root Extract 25 mg Under-dosed
  • Kudzu Root Extract 15 mg Under-dosed
  • Astragalus Root Extract 15 mg Under-dosed
  • Skullcap Aerial Parts 15 mg Under-dosed
  • Cassia Bark (Cinnamomum aromaticum) 15 mg Under-dosed
  • Coenzyme Q10 (ubiquinone) 15 mg Under-dosed
  • Licorice Root Extract 10 mg Under-dosed
  • Black Pepper Fruit Extract (BioPerine®) 3 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 10
Total Carbohydrate 2 g 1%*
Vitamin A (as beta-carotene) 1,500 mcg 167%
Vitamin C (as ascorbic acid) 50 mg 56%
Vitamin D-3 (as cholecalciferol) (200 IU) 5 mcg 25%
Thiamin (vitamin B-1) 30 mg 2,500%
Riboflavin (vitamin B-2) 30 mg 2,308%
Niacin (as niacin 37 mg & niacinamide 13 mg) 50 mg 313%
Vitamin B-6 (as pyridoxine HCl) 40 mg 2,353%
Folate (200 mcg folic acid) 340 mcg DFE 85%
Pantothenic Acid (as calcium D-pantothenate) 50 mg 1,000%
Magnesium (as magnesium malate & oxide) 300 mg 71%
Zinc (as zinc citrate & zinc methionine sulfate complex [OptiZinc®]) 15 mg 136%
Selenium (as L-selenomethionine & sodium selenite) 100 mcg 182%
Copper (as copper citrate) 1 mg 111%
Manganese (as manganese citrate) 12 mg 522%
Chromium (as chromium polynicotinate [ChromeMate®]) 100 mcg 286%
Molybdenum (as molybdenum amino acid complex) 90 mcg 200%
Sodium 10 mg <1%
Malic Acid (as malic acid & magnesium malate) 1.2 g
MSM (methylsulfonylmethane [OptiMSM®]) 1.12 g
GABA (gamma-aminobutyric acid) 150 mg
Hops Cone Extract (Peluxan™)Yielding 30 mg Humulex™ alpha-acids 100 mg
N-Acetyl L-Cysteine 75 mg
Dandelion Whole Plant / Root Extract 75 mg
Silymarin (from milk thistle seed extract) 70 mg
Ginko Leaf Extract (24% flavone glycosides & 6% terpene lactones) 60 mg
alpha-Lipoic Acid 50 mg
Ginger Root 30 mg
Bupleurum Root Extract 30 mg
Asian Ginseng Root Extract 25 mg
Kudzu Root Extract 15 mg
Astragalus Root Extract 15 mg
Skullcap Aerial Parts 15 mg
Cassia Bark (Cinnamomum aromaticum) 15 mg
Coenzyme Q10 (ubiquinone) 15 mg
Licorice Root Extract 10 mg
Black Pepper Fruit Extract (BioPerine®) 3 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Modified Cellulose Gum Generally_safe

It is used to improve the texture and stability of products.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Acacia Gum Safe

Binds tablet ingredients together. Also a source of soluble fiber.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$40$38$36$34$32 Mar 12 $38.00$34.44
iHerb
Vitacost

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

Brand Trust Report
Source Naturals

Founded 1982 · Scotts Valley, CA, USA · 837 products · sourcenaturals.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
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Frequently Asked Questions
Is Source Naturals Fibro-Response™, 180 Tablets a good supplement?

Source Naturals Fibro-Response™, 180 Tablets received a product quality score of 79/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 38 active ingredients with 60 servings per container. Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Source Naturals Fibro-Response™, 180 Tablets?

Source Naturals Fibro-Response™, 180 Tablets contains 38 active ingredients: Calories (10), Total Carbohydrate (2 g), Vitamin A (as beta-carotene) (1,500 mcg), Vitamin C (as ascorbic acid) (50 mg), Vitamin D-3 (as cholecalciferol) (200 IU) (5 mcg), Thiamin (vitamin B-1) (30 mg), and 32 more. Notable high-dose ingredients include Thiamin at 2,500% DV, Riboflavin at 2,308% DV, Niacin at 313% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals Fibro-Response™, 180 Tablets safe to take?

Source Naturals Fibro-Response™, 180 Tablets has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Source Naturals a trustworthy supplement brand?

Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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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.