SuppRankedBest-selling carnitine brands on Amazon
33 brands have products in the Amazon Best Sellers top 100 for Carnitine. 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 Carnitine products
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Top 10 Carnitine brands by revenue
NOW Foods, Nutricost, Pure Encapsulations and seven more, with each brand's estimated revenue share.
See the top 10 →Head-to-head comparisons
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Carnitine brands on Amazon: FAQ
What is the best-selling carnitine brand on Amazon?
By estimated revenue, NOW Foods is the best-selling carnitine brand on Amazon right now, at roughly $1.5M/mo from 9 products in the Carnitine Best Sellers top 100 (best position #11). By estimated units, Nutricost sells the most, about 48.7K a month, usually at a lower price per unit. 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 carnitine product on Amazon?
On October 15, 2026 the #1 product in Amazon's Carnitine Best Sellers list was Nutricost L-Carnitine Tartrate 1,000mg, 240 Capsules, 120 Servings | 500mg Per Capsule from Nutricost, with an estimated 48.7K units and ~$972K in revenue per month. Ranks change hourly, so check Amazon for the live list.
How many carnitine brands are in Amazon's top 100?
33 distinct brands have at least one product in the Carnitine top 100. The 10 biggest by estimated revenue account for about 65% of the list's estimated sales, and the top 3 for about 29%.
How much do the top carnitine products sell on Amazon?
We estimate the top 100 carnitine products together bring in about $12M 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.