SuppRankedL-Theanine market on Amazon
L-Theanine products on Amazon bring in an estimated $3.2M/mo (~156K units) across the 33 products from 26 brands we track. Sports Research leads with about 22% of estimated sales and the top 3 brands hold 46%, a moderately concentrated market.
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L-Theanine market FAQ
How big is the L-Theanine market on Amazon?
About $3.2M a month in estimated Amazon.com sales at list price (~156K units), summed across the 33 L-Theanine products SuppRanked tracks in Amazon's supplement Best Sellers lists. Products outside those lists are not counted, so treat it as a floor and an order-of-magnitude figure. These are SuppRanked's modeled estimates from public Amazon Best Sellers ranks and list prices (October 18, 2026), not official Amazon sales data.
Which brands lead the L-Theanine market on Amazon?
Sports Research leads with about 22% of estimated sales (~$717K/mo). The top 3 (Sports Research, THORNE, Integrative Therapeutics) hold about 46% and the top 10 about 87%.
How many L-Theanine brands sell on Amazon?
We count 26 identified brands with at least one L-Theanine product in the lists we track, as of October 18, 2026. A product counts when its title names L-Theanine as its main ingredient or form; see the methodology.
Updated October 18, 2026. A product counts when its title names L-Theanine as its main ingredient or form; a product can count in more than one market. Methodology · All 60 markets