Piping Rock Premium Magnesium Glycinate 375 mg supplement bottle
Piping Rock

Premium Magnesium Glycinate 375 mg Review

What We Researched
1 active ingredient analyzed · 6 inactive ingredients decoded · 3 brand certifications checked · Page generated: Sep 2026
93
Product Score Excellent
78
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 375 mg —
Bioavailability Excellent

Absorption Rating

  • Magnesium Good
Other Ingredients Excellent

Fillers & Additives

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

Dosage Analysis

  • Magnesium 375 mg High

Supplement Facts

Ingredient Amount % Daily Value
Magnesium 375 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.

Sunflower Lecithin Safe

Helps mix oil and water-based ingredients. Allergen-free alternative to soy lecithin.

Caramel Color Generally_safe

It provides a brown color to the product.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Rice Bran Oil Safe

It is used as a carrier oil.

Brand Trust Report
Piping Rock

Founded 2011 · Ronkonkoma, NY, USA · pipingrock.com

Certifications

3 certifications
Nsf Gmp Verified evidence Primary evidence
Fda Gmp Inspections Verified evidence Primary evidence
USDA Organic Supporting evidence unavailable

Transparency

5 claims
Third Party Testing Claim — Claimed Unverifiable Evidence available Evidence
Testing Lab Disclosure — Claimed Unverifiable Evidence available Evidence
In House Testing — Claimed Unverifiable Evidence available Evidence
Contains Proprietary Blend — True Brand claim; evidence unavailable

Violation History

6 incidents
Lawsuit Wrongful death and consumer fraud related to the marketing of a kratom supplement without proper warnings.2025 Source checked Primary source
Lawsuit Contract dispute.2025 Source checked Primary source
Prop 65 Lead2024-08-25 Source checked Primary source
Lawsuit Misleading labeling of magnesium content in 'CALM GUMMIES Magnesium Supplement' products.2024 Source checked Primary source
Recall Wintergreen Essential Oil2019-08-22 Source available Primary source
Prop 65 Lead2014-04-28 Source checked Primary source
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Frequently Asked Questions
Is Piping Rock Premium Magnesium Glycinate 375 mg a good supplement?

Piping Rock Premium Magnesium Glycinate 375 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 1 active ingredients with 43 servings per container. All 6 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Piping Rock, holds a brand trust score of 78/100 with 2 verified certifications including Nsf Gmp, Fda Gmp Inspections.

What are the ingredients in Piping Rock Premium Magnesium Glycinate 375 mg?

Piping Rock Premium Magnesium Glycinate 375 mg contains 1 active ingredients: Magnesium (375 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Piping Rock Premium Magnesium Glycinate 375 mg safe to take?

GoodSupp reviewed the inactive-ingredient data available for Piping Rock Premium Magnesium Glycinate 375 mg. All 6 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Piping Rock a trustworthy supplement brand?

Piping Rock receives a brand trust score of 78/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2011 and headquartered in Ronkonkoma, NY, USA, They hold 2 verified certifications including Nsf Gmp, Fda Gmp Inspections. The linked records document particular certification scopes; they do not prove that every product or batch was independently tested for contents, purity, or effectiveness. Note: Piping Rock has 6 historical regulatory incidents on record, which are factored into the trust score.

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.