SuppRankedBest-selling l-glutamine brands on Amazon
63 brands have products in the Amazon Best Sellers top 100 for L-Glutamine. Ordered by how strongly each brand ranks in this list (higher positions and more products count more). List as of October 15, 2026.
Top 10 L-Glutamine products
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Top 10 L-Glutamine brands by revenue
Nutricost, THORNE, Pure Encapsulations and seven more, with each brand's estimated revenue share.
See the top 10 →Head-to-head comparisons
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L-Glutamine brands on Amazon: FAQ
What is the best-selling l-glutamine brand on Amazon?
By estimated revenue, Nutricost is the best-selling l-glutamine brand on Amazon right now, at roughly $1.6M/mo from 4 products in the L-Glutamine Best Sellers top 100 (best position #1). These are SuppRanked's modeled estimates from public Amazon Best Sellers ranks and list prices (October 15, 2026), not official Amazon sales data.
What is the #1 best-selling l-glutamine product on Amazon?
On October 15, 2026 the #1 product in Amazon's L-Glutamine Best Sellers list was Nutricost L-Glutamine Powder (500 Grams) Unflavored, 100 Servings, GMO-Free | Gluten-Free from Nutricost, with an estimated 51.4K units and ~$1.2M in revenue per month. Ranks change hourly, so check Amazon for the live list.
How many l-glutamine brands are in Amazon's top 100?
63 distinct brands have at least one product in the L-Glutamine top 100. The 10 biggest by estimated revenue account for about 56% of the list's estimated sales, and the top 3 for about 32%.
How much do the top l-glutamine products sell on Amazon?
We estimate the top 100 l-glutamine products together bring in about $15.4M 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.
How are these rankings calculated?
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.
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