Carlyle Extra Strength Magnesium 400 mg supplement bottle
Carlyle

Extra Strength Magnesium 400 mg Review

What We Researched
2 active ingredients analyzed · 6 inactive ingredients decoded · 1 brand certification checked · Last updated: Aug 2026
93
Product Score Excellent
65
Brand Score Fair

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Magnesium Glycinate 400 mg
Magnesium 400 mg
Bioavailability Excellent

Absorption Rating

  • Magnesium Glycinate Good
  • Magnesium Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Vegetable Glycerin
  • Caramel
  • Calcium Carbonate
  • Rice Bran Oil
  • Soy Lecithin
Efficacy Very Good

Dosage Analysis

  • Magnesium Glycinate 400 mg High
  • Magnesium 400 mg High

Supplement Facts

Ingredient Amount % Daily Value
Magnesium Glycinate 400 mg
Magnesium 400 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Vegetable Glycerin Safe

Helps form softgel capsule shells and acts as a humectant.

Caramel Generally_safe

It is used to impart a brown color to supplements.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Rice Bran Oil Safe

It is used as a carrier oil.

Soy Lecithin Safe

Helps blend oil and water-based ingredients. Common allergen.

Brand Trust Report

Certifications

1 certification
USDA Organic Verified

Transparency

3 claims
Third Party Testing Claim — True
Testing Lab Disclosure — True
Contains Proprietary Blend — True
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Frequently Asked Questions
Is Carlyle Extra Strength Magnesium 400 mg a good supplement?

Carlyle Extra Strength Magnesium 400 mg received a product quality score of 93/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients with 180 servings per container. Of the 6 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, Carlyle, holds a brand trust score of 65/100 with 1 verified certifications including USDA Organic.

What are the ingredients in Carlyle Extra Strength Magnesium 400 mg?

Carlyle Extra Strength Magnesium 400 mg contains 2 active ingredients: Magnesium Glycinate (400 mg), Magnesium (400 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Carlyle Extra Strength Magnesium 400 mg safe to take?

Carlyle Extra Strength Magnesium 400 mg 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 Carlyle a trustworthy supplement brand?

Carlyle receives a brand trust score of 65/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. They hold 1 verified certifications including USDA Organic. 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.

What is magnesium good for?

Magnesium Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding magnesium 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 150,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much magnesium per day?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What is zinc good for?

Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc 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 150,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

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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 — read our methodology. 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.