Vitamin b9 supplements: top picks

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AI-generated summary · updated September 1, 2026 · verify details before purchase.

1. 

   1 Best high-dose option THORNE

   Thorne Research 5-MTHF 1 mg

   ★★★★★4.8/5 $24.00

   Potent methylfolate supplement for those needing higher doses, third-party tested for purity.

   • High potency
   • Third-party tested
   • Well-researched

   • Expensive

   View on Amazon manufacturer site
2. 

   2 Best budget pick NOW Foods

   NOW Foods Folic Acid 800 mcg

   ★★★★☆4.5/5 $6.11

   Affordable folic acid option for general supplementation, from a reliable brand.

   • Very affordable
   • Trusted brand
   • Standard dose

   • Not methylfolate

   View on Amazon manufacturer site
3. 

   3 Best whole food option Garden of Life

   Garden of Life Vitamin Code Raw Folate

   ★★★★☆4.4/5 $50.39

   Raw, whole food folate with probiotics and enzymes for enhanced absorption.

   • Whole food based
   • Contains probiotics
   • Non-GMO

   • Some may find large capsules

   View on Amazon manufacturer site
4. 

   4 Best for absorption Methyl-Life

   Methyl-Life Quatrefolic 400 mcg

   ★★★★★4.6/5 $49.00

   Uses Quatrefolic, a premium glucosamine salt of methylfolate for superior absorption.

   • High absorption
   • No synthetic folic acid
   • Quality assured

   • Relatively new brand

   View on Amazon manufacturer site
5. 

   5 Best value methylfolate Doctor's BEST

   Doctor's Best Best Fully Active Folate

   ★★★★☆4.5/5 $9.99

   Active folate (calcium L-5-MTHF) at a great price point, suitable for daily maintenance.

   • Good value
   • Active form
   • Vegan

   • Lower dose (400 mcg)

   View on Amazon manufacturer site
6. 

   6 Best combination formula Life Extension

   Life Extension Folate with Metafolin

   ★★★★☆4.3/5 $11.24

   Combines Metafolin with vitamin B12 for synergistic support of homocysteine metabolism.

   • Contains B12
   • Science-backed
   • Good price

   • May not be needed if already taking B12

   View on Amazon manufacturer site
7. 

   7 Best hypoallergenic option Pure Encapsulations

   Pure Encapsulations Folate 800 mcg

   ★★★★★4.7/5 $22.00

   Hypoallergenic methylfolate from a practitioner-trusted brand, free of common allergens.

   • Hypoallergenic
   • High quality
   • Practitioner trusted

   • Pricey

   View on Amazon manufacturer site
8. 

   8 Best overall Solgar

   Solgar Folate (as Metafolin) 400 mcg

   ★★★★★4.7/5 $15-$20 Currently unavailable

   High-quality methylfolate (Metafolin) from a trusted brand, suitable for most people including those with MTHFR mutations.

   • Bioactive form
   • Trusted brand
   • Easy to absorb

   • Slightly higher price

   View on Amazon manufacturer site

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