Caffeine L Theanine
MaybeAn estimated 0.0% of orders come back. But the top 5 products take 86% of clicks, so Caffeine L Theanine is a Maybe.
- Flapen Score
- 50 / 100Top 44% of 14,768 Health & Household niches · +1 vs the category median of 4950
- Market size
- $347K/yr173K searches / yr
- 90-day growth
- +0.2%search demand this quarter
- Competition
- 86%top-5 click share · 8 brands · 14 sellers
Flapen Score
Caffeine L Theanine against its category
The dotted line is the Health & Household average. Past it, Caffeine L Theanine is stronger. Inside it, weaker.
Market
The Caffeine L Theanine market on Amazon at a glance
Shoppers on Amazon United States searched for Caffeine L Theanine 173K times last year and spent an estimated $347K. The top 5 brands take 91% of clicks. Flapen scores it 50 out of 100, a Maybe.
01 · Demand
An estimated 10.4% of those searches ended in a purchase.
Shoppers searched for this 173K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 10.4% of those searches ended in a purchase. Searches in the last 90 days moved +0.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated $347K a year.
- Searches, last 12 months
- 173K
- Growth, 90 days vs prior 90
- +0.2%
- Conversion, latest week
- 10.4%
- Market size, estimated
- $347Ka year
- Peak month
- January1.4× the quietest month
- Top search term
- caffeine l theanine pills29K searches a year
02 · Price
A sale here is worth $19.20.
Listings sell for $19.20 on average, from $9.96 to $28.42. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 1,500 to 2,000 of them. At $19.20 that is $29K to $38K a year per listing.
- Average price
- $19.20inside the $15 to $100 sweet spot
- Price range
- $9.96–$28.42
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 1,500–2,000
- Revenue per listing a year
- $29K–$38K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
100% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #439 within Endurance & Energy. It carries 3,910 reviews at 4.40 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #439in Endurance & Energy
- Average rating
- 4.40 starsAmazon United States average 4.42 stars
- Average reviews
- 3,910per listing
- Listings tracked
- 10
04 · Newcomers
1 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 59 months on average, so the names here are settling in.
- Launched, last 12 months
- 1
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 59 months
Products
Top Caffeine L Theanine products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 8, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Nutricost Caffeine with L-Theanine 100mg of Each 240 Capsules 240 Servings - Non-GMO and Gluten Free
- Price
- $13.86
- Rating
- 4.5/5
- Reviews
- 2,396
- Age
- 5y ago

Sports Research L-Theanine Supplement with Caffeine & Coconut MCT Oil - Focused Energy Alertness & Relaxation Without Drowsiness - 200mg L Theanine 100mg Organic Caffeine - 60 Liquid Softgels
- Price
- $21.88
- Rating
- 4.5/5
- Reviews
- 3,550
- Age
- 7y ago

Vitamatic L-Theanine 200mg with Caffeine 100mg 120 Vegetarian Tablets Nootropic Supplement for Focused Energy & Mental Clarity
- Price
- $9.96
- Rating
- 4.5/5
- Reviews
- 412
- Age
- 4y ago

SmarterVitamins 200mg Caffeine Pills - MCT Oil from 100% Coconuts + 100mg L-Theanine Energy and Focus Extended Release Capsule 50 Liquid Softgels
- Price
- $28.42
- Rating
- 4.3/5
- Reviews
- 11,341
- Age
- 7y ago

Eu Natural Elite Caffeine Pills with L-Theanine - 100mg Caffeine + 200mg L-Theanine - Jitter-Free Focused Energy & Clean Nootropic Stack - 120 Soft Capsules
- Price
- $19.62
- Rating
- 4.2/5
- Reviews
- 3,162
- Age
- 10y ago
Trending
estimated 90-day click momentum
Vitamatic Caffeine Pills with L-Theanine 300 mg Per Tablet 120 Vegetarian Tablets (Pack of 2 Total 240 Tablets)
- Price
- $18.31
- Rating
- 4.5/5
- Reviews
- 412
- Age
- 4y ago

Sports Research Double Strength L-Theanine Supplement - Suntheanine Softgels for Focus Relaxation & Alertness - Non-Drowsy Support Made with Coconut Oil Non-GMO & Gluten Free - 200mg 60 Count
- Price
- $18.87
- Rating
- 4.5/5
- Reviews
- 15,181
- Age
- 11y ago

Vitamatic L-Theanine 200mg with Caffeine 100mg 120 Vegetarian Tablets Nootropic Supplement for Focused Energy & Mental Clarity
- Price
- $9.96
- Rating
- 4.5/5
- Reviews
- 412
- Age
- 4y ago

Nootropics Depot Caffeine and L-Theanine Capsules | 60 Pills | Contains 100mg of Caffeine and 200mg of L-Theanine | Natural Supplement | Energy Booster | Mental Focus + Alertness | Coffee Alternative
- Price
- $19.05
- Rating
- 4.3/5
- Reviews
- 732
- Age
- 10y ago

SmarterVitamins 200mg Caffeine Pills - MCT Oil from 100% Coconuts + 100mg L-Theanine Energy and Focus Extended Release Capsule 50 Liquid Softgels
- Price
- $28.42
- Rating
- 4.3/5
- Reviews
- 11,341
- Age
- 7y ago
Newest
by launch date
Caffeine Pills with L-Theanine - 180 Energy Pills for Women & Men - Clean & Long-Lasting Focused Energy - Sustained Release 100mg Caffeine + 200mg L Theanine - No Crash Capsules Vegan Supplement
- Price
- $19.84
- Rating
- 4.2/5
- Reviews
- 93
- Age
- 6mo ago

Vitamatic L-Theanine 200mg with Caffeine 100mg 120 Vegetarian Tablets Nootropic Supplement for Focused Energy & Mental Clarity
- Price
- $9.96
- Rating
- 4.5/5
- Reviews
- 412
- Age
- 4y ago

Vitamatic Caffeine Pills with L-Theanine 300 mg Per Tablet 120 Vegetarian Tablets (Pack of 2 Total 240 Tablets)
- Price
- $18.31
- Rating
- 4.5/5
- Reviews
- 412
- Age
- 4y ago

Nutricost Caffeine with L-Theanine 100mg of Each 240 Capsules 240 Servings - Non-GMO and Gluten Free
- Price
- $13.86
- Rating
- 4.5/5
- Reviews
- 2,396
- Age
- 5y ago

Sports Research L-Theanine Supplement with Caffeine & Coconut MCT Oil - Focused Energy Alertness & Relaxation Without Drowsiness - 200mg L Theanine 100mg Organic Caffeine - 60 Liquid Softgels
- Price
- $21.88
- Rating
- 4.5/5
- Reviews
- 3,550
- Age
- 7y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 86% of clicks. A locked shelf that new listings rarely crack.
Brands
8 falling
Sellers
14
Est. top-5 brand share
91%
Top 20: 100%
Est. top-5 click share
86%
Top 20: 100%
Open market
5%
- Nutricost37%
- Sports Research22%
- Vitamatic17%
- SmarterVitamins10%
- Eu Natural6%
- NutraChamps3%
- Open — no brand owns it (2 brands, 5%)
Demand
Caffeine L Theanine search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.4×
Search terms
Top Caffeine L Theanine search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- caffeine l theanine pills29K/yr
- caffeine l theanine17K/yr
- l theanine caffeine19K/yr
- caffeine and l theanine11K/yr
- caffeine pills with l-theanine10K/yr
- l theanine and caffeine12K/yr
- caffeine and l theanine pills9K/yr
- caffeine with l-theanine8K/yr
- l-theanine caffeine8K/yr
- caffeine theanine7K/yr
Reviews and returns
What reviews say buyers love and hate about Caffeine L Theanine
We read the reviews and the return reasons for every product selling here.
“Makes you very sleepy”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Caffeine L Theanine questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









