Best-selling b9 (folic acid) brands on Amazon

By estimated revenue, THORNE is the best-selling b9 (folic acid) brand on Amazon right now, at roughly $1.1M/mo from 2 products in the B9 (Folic Acid) Best Sellers top 100 (best position #2). These are SuppRanked's modeled estimates from public Amazon Best Sellers ranks and list prices (October 15, 2026), not official Amazon sales data.

On October 15, 2026 the #1 product in Amazon's B9 (Folic Acid) Best Sellers list was L Methyl Folate 15mg + Methyl B12 Cofactor, High Potency Active 5-MTHF Form | Supports Mood… from an unconfirmed brand, with an estimated 51.4K units and ~$1.1M in revenue per month. Ranks change hourly, so check Amazon for the live list.

43 distinct brands have at least one product in the B9 (Folic Acid) top 100. The 10 biggest by estimated revenue account for about 64% of the list's estimated sales, and the top 3 for about 38%.

We estimate the top 100 b9 (folic acid) products together bring in about $11.2M a month at list price, before returns, discounts and fees. Treat it as an order-of-magnitude figure. These are SuppRanked's modeled estimates from public Amazon Best Sellers ranks and list prices (October 15, 2026), not official Amazon sales data.

We read the public Amazon Best Sellers list daily, match each product to its brand, estimate monthly units from Amazon's “bought in past month” badges and sales-rank curves, and multiply by list price. Full details are on the methodology page.