L-Methylfolate 15mg - 30 Tablets
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From Our Experts
- L-Methylfolate provides 15mg (15,000 mcg) of the most active form of folic acid
- This product has our preferred form of 5-MTHF, the gluocsamine salt form.
From the Manufacturer
5-MTHF, provided as Quatrefolic - the glucosamine salt of 5-MTHF, is the most biologically active form of the water-soluble B vitamin, folic acid. It is the preferred form of folate supplementation due to an array of conditions that can limit conversion or absorption of folic acid.
Quatrefolic has demonstrated greater stability, solubility, and bioavailability when compared to calcium salt forms of 5-MTHF.
Data indicate that supplementing with 5-MTHF increases plasma folate more effectively than folic acid.*
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The Woodstock Advantage
Highest-quality, bioavailable forms
Cheap, synthetic forms
Sustainably from ethical partners
Questionable and mostly unethical
GMP-certified, third-party tested
No oversight, no testing
Good price for high quality
Expensive for cheap quality
20+ Year holistic pharmacist
Not health professional
Meet Dr. Neal
Smoller, PharmD
“My mission is simple: empower you to make smarter choices for your health”
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Pharmacist & Supplement Strategist
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20+ Years Experience
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Thousands Of Empowered Customers
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Formulated By This Pharmacist, Not Just Pharmacist
Straight, Simple Answers.
Our customers are some of the most savvy supplement buyers out there. Here are some of their most common, excellent questions we've fielded over the years.
Welcome. For everyone who’s supplement-curious or supplement-overwhelmed, we recommend starting with the First5 — five core nutrients that are commonly missing from even the best diets, and that almost everyone would benefit from. Closing one or all of these gaps has a profound impact on how you feel today and on long-term health. To find your foundation, take the Woodstock Quiz — it identifies which of the First5 you actually need.
Pharmacist-formulated means every product is designed with clinical judgment — not marketing trends. We focus on evidence-based ingredients, well-researched forms, and meaningful doses, while avoiding unnecessary extras. The goal is simple: products that actually support your health and fit into real life.
Yes. All of our products are third-party tested for heavy metals like lead, cadmium, and mercury, as well as contaminants like E. coli, Salmonella, yeast, and mold. Every product we recommend must meet the Supplement Quality Standard — our internal benchmark for quality, manufacturing compliance, sourcing, and value. If a product fails any part of it, we don’t sell it.
No. The First5 are foundational nutrients that many people are missing, but your needs may vary. Some people benefit from all five; others only need one or two. Our goal is to help you focus on what your body actually needs — not take more supplements than necessary.
Most foundational nutrients work gradually. Some people notice changes in energy, sleep, or digestion within a few weeks, but meaningful benefits typically develop over 4–12 weeks of consistent use. Supplements support your body over time — consistency matters more than quick results.
Foundational supplements work best when taken consistently over time, but if a product isn’t the right fit, our team is here to help you adjust your plan. Our goal isn’t to sell more products — it’s to help you build a routine that actually supports your health.
We offer several shipping options within the U.S., including free shipping on orders over $60. Orders placed before 4 PM EST, Monday through Friday, ship the same day. You can find more details at woodstockvitamins.com/shipping.
We will gladly accept any unopened item purchased from Woodstock Vitamins for any reason within thirty (30) days of purchase. Refunds are issued promptly upon receipt of unopened items to the original payment method. Shipping and handling charges are non-refundable. To start a return, contact us via email, phone, or chat. If you’re local to Woodstock, NY, you can bring your purchase to our store at 79 Tinker Street for an immediate refund. Full policy: https://www.woodstockvitamins.com/returns
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