---
title: "L Theanine Chewable — $55K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/l-theanine-chewable"
last_updated: "2026-08-12T15:05:51.106Z"
locale: en
meta:
description: "Amazon product research for l theanine chewable: $55K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for l theanine chewable: $55K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "L Theanine Chewable — $55K/mo Amazon US Product Research"
---
# **L Theanine Chewable**
**Skip it**
Soft demand (-46.1% this quarter) — this niche doesn't clear our bar today.
Market size 67Growth 2Conversion 95Competition 16Returns 100Price range 90Avg price 95Brand share 25Review moat 25Quality gap 25
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.2%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$24.53**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$11.91–$66.04**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$665K**
$665K/yr · 222K searches
**Brand share**
**Okay****90%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****4,202.9**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****81%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-46.1%**
90-day search growth — must beat 0% to launch
## **Is l theanine chewable profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, l theanine chewable is a $665K/yr Amazon United States market (222K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Skip it — 48/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **l theanine chewable market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **25K–30K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **$613K–$736K**
- units × avg price
- **Conversion rate**
- **12.2%**
- **Avg BSR**
- **#301**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **70%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **68 months**
- **Avg seller age**
- **154 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **▼falling
**Sellers**
**59**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**81%**
Top 20: 100%
**Open market**
**6%**
- Natural Factors53% - Sports Research13% - Nature Made12% - Swanson7% - Doctor's BEST5% - NOW Foods4% - Open — no brand owns it (2 brands, 6%)
## **l theanine chewable demand & seasonality**
Weekly Amazon search volume, last 55 weeks — -46.1% search growth over the last 90 days.
20K15KPrime Day '25Spike '25Spike '26 seasonJulAugSepOctNovDecJanFebMarAprMayJunJul
Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 19.1×
[**Open Trend **](https://flapen.com/research/us/health-household/l-theanine-chewable/trend)
## **Top l theanine chewable search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **suntheanine**103K/yr-60.2%9.7% conv. - **suntheanine l-theanine**31K/yr-37.1%10.1% conv. - **l theanine chewable**15K/yr-2.7%8.6% conv. - **suntheanine l-theanine 200mg**10K/yr-10.8%10.3% conv. - **l theanine suntheanine**7K/yr-9.0%7.8% conv. - **nature made l theanine**6K/yr+7.3%13.9% conv. - **suntheanine 200mg**4K/yr-11.4%10.8% conv. - **l theanine nature made**5K/yr-7.6%14.5% conv. - **l-theanine chewable**9K/yr-9.4%9.3% conv. - **sun theanine**4K/yr-30.7%13.1% conv. [**All search terms **](https://flapen.com/research/us/health-household/l-theanine-chewable/search-terms)
## **Top l theanine chewable products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%$100K30%$199K45%$299K60%$399K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Natural Factors Suntheanine L-Theanine 100 mg - Health Supplement for Calm Outlook - L-Theanine Supplement Supports Relaxing Sleep & Aids Against Drowsiness - 60 Chewable Tablets (30 Servings)**Natural Factors**$18.37**4.6★1,820 rev](https://www.amazon.com/dp/B000OEPAH0) [2**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**Sports Research**$19.05**4.5★15,233 rev](https://www.amazon.com/dp/B00TXY32FY) [3**Nature Made Chewable L Theanine 200mg L-Theanine Supplement for Stress Relief 50 Chewable Tablets 50 Day Supply**Nature Made**$13.25**4.6★2,023 rev](https://www.amazon.com/dp/B0BX7HP6FB) [4**Natural Factors Suntheanine L-Theanine 100 mg - Health Supplement for Calm Outlook - L-Theanine Supplement Supports Relaxing Sleep & Aids Against Drowsiness - 120 Chewable Tablets (60 Servings)**Natural Factors**$34.90**4.6★1,820 rev](https://www.amazon.com/dp/B06XZ1WCL1) [5**Swanson Double Potency Suntheanine L-Theanine Calm and Focus Supplement for Stress-Prone Professionals Seeking Balanced Wellbeing - 200 mg (60 Veggie Capsules)**Swanson**$21.08**4.4★136 rev](https://www.amazon.com/dp/B00DECMJL4)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Nature Made Chewable L Theanine 200mg L-Theanine Supplement for Stress Relief 50 Chewable Tablets 50 Day Supply**Nature Made**$13.25**2,023 rev3y ago](https://www.amazon.com/dp/B0BX7HP6FB) [**Nutricost L-Theanine 200mg 120 Capsules Double Strength Gluten Free**Nutricost**$11.91**9,940 rev10y ago](https://www.amazon.com/dp/B01B3RWQNM) [**Natural Factors Suntheanine L-Theanine 100 mg - Health Supplement for Calm Outlook - L-Theanine Supplement Supports Relaxing Sleep & Aids Against Drowsiness - 120 Chewable Tablets (60 Servings)**Natural Factors**$34.90**1,820 rev10y ago](https://www.amazon.com/dp/B06XZ1WCL1) [**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**Sports Research**$19.05**15,233 rev11y ago](https://www.amazon.com/dp/B00TXY32FY) [**NOW Foods Supplements L-Theanine 200 mg with Inositol Stress Management* 120 Veg Capsules**NOW Foods**$21.33**7,341 rev12y ago](https://www.amazon.com/dp/B00GQV9YX6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Swanson Double Potency Suntheanine L-Theanine Calm and Focus Supplement for Stress-Prone Professionals Seeking Balanced Wellbeing - 200 mg (60 Veggie Capsules)**Swanson**$21.08**4.4★**▲ 79%**](https://www.amazon.com/dp/B00DECMJL4) [**THORNE - Theanine - 200 mg of L-Theanine - Supports a Healthy Stress Response Relaxation Focus Memory & Positive Mood - Increases Brain Alpha-Wave Production* - Third-Party Certified - 90 Capsules**THORNE**$66.04**4.7★**▲ 63%**](https://www.amazon.com/dp/B0797BLW59) [**NOW Foods Supplements L-Theanine 200 mg with Inositol Stress Management* 120 Veg Capsules**NOW Foods**$21.33**4.7★**▲ 58%**](https://www.amazon.com/dp/B00GQV9YX6) [**Nutricost L-Theanine 200mg 120 Capsules Double Strength Gluten Free**Nutricost**$11.91**4.6★**▲ 41%**](https://www.amazon.com/dp/B01B3RWQNM) [**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**Sports Research**$19.05**4.5★**▲ 41%**](https://www.amazon.com/dp/B00TXY32FY)
**~~View all trending →~~**
## **What reviews say buyers love and hate about l theanine chewable**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**15%
*“Helps with sleep”*
**Quality-Overall**12%
*“Good quality and trusted brand”*
**Stress/Anxiety**11%
*“Anxiety Relief”*
**Focus Enhancement**9%
*“Improves mood”*
**Efficiency**5%
*“Very effective”*
**Vitamin**4%
*“Great effective supplement”*
**Soothing Effect**4%
*“good calming”*
**Taste-Overall**4%
*“Taste great and helps with sleep”*
**Ease Of Chewing/Swallowing**4%
*“Not hard to swallow”*
**Value For Money**3%
*“Worth it”*
### **What buyers complain about **
**Functionality-Overall**8%
*“Not effective”*
**Taste-Overall**6%
*“Terrible taste”*
**Value For Money**5%
*“Not worth it”*
**Stress/Anxiety**5%
*“Im struggling with terrible anxiety. GAD”*
**Sleep Quality**4%
*“Sleep aid not worth buying”*
**Side Effects**4%
*“Side effects, can't take”*
**Dosage**4%
*“Not sure what this means for the 200mg which each tablet is supposed to include”*
**Ingredients-Overall**3%
*“A bit disappointing because I thought Id found a reasonable source of suntheanine”*
**Focus Enhancement**3%
*“I did not feel any different in focus and relaxation”*
**Artificial Sweeteners**3%
*“Added sugar artificial 3g per dose”*
### **Top return reasons **
**Functionality-Overall**39%
**Ingredients-Overall**22%
**Value For Money**11%
**Durability**6%
**Advertised Vs Actual Product**6%
**Quality-Overall**6%
**Artificial Sweeteners**6%
**Dosage**6%
## **Common l theanine chewable questions**
- **Is l theanine chewable profitable to sell on Amazon United States?**
- The niche generates $665K/yr across 10 tracked products. 90-day search growth is -46.1%. Flapen's verdict: Skip it (48/100).
- **How competitive is the l theanine chewable niche?**
- 8 brands and 59 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in l theanine chewable?**
- Top complaints mined from reviews: Functionality-Overall, Taste-Overall, Value For Money. The return rate is 0.0%.
- **When does demand for l theanine chewable peak?**
- Demand peaks in Mar–Apr–May–Jun; the busiest month runs 19.1× the quietest.
- **What does it cost to enter the l theanine chewable niche?**
- Listings span $11.91–$66.04; the average listing price is $24.53 (sweet spot $15–$100). The average incumbent carries 4,203 reviews — the moat a new listing must climb.
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