SuperiorLabs 5-MTHF supplement bottle
SuperiorLabs

5-MTHF Review

What We Researched
1 active ingredient analyzed · 2 inactive ingredients decoded · 2 brand certifications checked · Last updated: Aug 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
Folate (as L-5-Methyltetrahydrofolate) 5000 mcg DFE 1250%
Bioavailability Excellent

Absorption Rating

  • Folate (as L-5-Methyltetrahydrofolate) Good
Other Ingredients Excellent

Fillers & Additives

  • Rice Concentrate
  • Cellulose
Efficacy Very Good

Dosage Analysis

  • Folate (as L-5-Methyltetrahydrofolate) 5000 mcg DFE High

Supplement Facts

Ingredient Amount % Daily Value
Folate (as L-5-Methyltetrahydrofolate) 5000 mcg DFE 1250%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Rice Concentrate Safe

It is used as a filler or binder.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Brand Trust Report
SuperiorLabs

Founded 2012 · Creswell, OR, USA · 54 products · superiorlabs.com

Certifications

2 certifications
Fda Gmp Inspections Verified Source
NSF Certified Verified

Transparency

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

Violation History

2 incidents
Fda Warning Serious violations of CGMP regulations and unapproved new drug claims on the company website.2023-04-27Source
Prop 65 Lead and lead compounds2018-07-20Source
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Frequently Asked Questions
Is SuperiorLabs 5-MTHF a good supplement?

SuperiorLabs 5-MTHF 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 60 servings per container. All 2 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, SuperiorLabs, holds a brand trust score of 78/100 with 2 verified certifications including Fda Gmp Inspections, NSF Certified.

What are the ingredients in SuperiorLabs 5-MTHF?

SuperiorLabs 5-MTHF contains 1 active ingredients: Folate (as L-5-Methyltetrahydrofolate) (5000 mcg DFE). Notable high-dose ingredients include Folate at 1250% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is SuperiorLabs 5-MTHF safe to take?

SuperiorLabs 5-MTHF 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 SuperiorLabs a trustworthy supplement brand?

SuperiorLabs receives a brand trust score of 78/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2012 and headquartered in Creswell, OR, USA, the company offers 54 products in their lineup. They hold 2 verified certifications including Fda Gmp Inspections, NSF Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: SuperiorLabs has 2 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 — 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.