Douglas Laboratories Methyl Folate, 1000 mcg Metafolin, 60 Tablets supplement bottle
Douglas Laboratories

Methyl Folate, 1000 mcg Metafolin, 60 Tablets

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 5 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
93
Product Score Excellent
95
Brand Score Excellent

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Folate (as Metafolin® L-5-MTHF)(1,000 mcg L-5-MTHF) 1667 mcg DFE 417%
Bioavailability Excellent

Absorption Rating

  • Folate (as Metafolin® L-5-MTHF)(1,000 mcg L-5-MTHF) Good
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Dicalcium Phosphate
  • Croscarmellose Sodium
  • Stearic Acid
  • Vegetable Stearate and Silica
Efficacy Very Good

Dosage Analysis

  • Folate (as Metafolin® L-5-MTHF)(1,000 mcg L-5-MTHF) 1667 mcg DFE High

Supplement Facts

Ingredient Amount % Daily Value
Folate (as Metafolin® L-5-MTHF)(1,000 mcg L-5-MTHF) 1667 mcg DFE 417%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Vegetable Stearate and Silica Generally_safe

They are added to improve manufacturing by preventing ingredients from sticking to machinery and improving powder flow.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$26$25$24$23$22 Mar 12 $24.00
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
Douglas Laboratories

Founded 1955 · Pittsburgh, Pennsylvania, United States · 32 products · douglaslabs.com

Certifications

5 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Nsf Certified For Sport Verified Source
Nsf Gmp Verified Source
Usda Organic Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
In House Testing — Verified Source

Violation History

2 incidents
Recall Douglas Labs Stress-B-Plus2024-10-07Source
Prop 65 Lead2008-10-22Source
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Frequently Asked Questions
Is Douglas Laboratories Methyl Folate, 1000 mcg Metafolin a good supplement?

Douglas Laboratories Methyl Folate, 1000 mcg Metafolin, 60 Tablets 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. Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Douglas Laboratories, holds a brand trust score of 95/100 with 5 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Certified For Sport, Nsf Gmp.

What are the ingredients in Douglas Laboratories Methyl Folate, 1000 mcg Metafolin?

Douglas Laboratories Methyl Folate, 1000 mcg Metafolin contains 1 active ingredients: Folate (as Metafolin® L-5-MTHF)(1,000 mcg L-5-MTHF) (1667 mcg DFE). Notable high-dose ingredients include Folate at 417% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Douglas Laboratories Methyl Folate, 1000 mcg Metafolin safe to take?

Douglas Laboratories Methyl Folate, 1000 mcg Metafolin, 60 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 Douglas Laboratories a trustworthy supplement brand?

Douglas Laboratories receives a brand trust score of 95/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1955 and headquartered in Pittsburgh, Pennsylvania, United States, the company offers 32 products in their lineup. They hold 5 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Certified For Sport, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Douglas Laboratories 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. 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.