L Theanine Chewable
Skip itSoft demand (-46.1% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible12.2%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$24.53avg listing price — sweet spot $15–$100
Price range
Great$11.91–$66.04cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$665K$665K/yr · 222K searches
Brand share
Okay90%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad4,202.9avg incumbent reviews — the moat a new listing must climb
Competition
Bad81%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
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.Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 19.1×
Top l theanine chewable search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- suntheanine103K/yr
- suntheanine l-theanine31K/yr
- l theanine chewable15K/yr
- suntheanine l-theanine 200mg10K/yr
- l theanine suntheanine7K/yr
- nature made l theanine6K/yr
- suntheanine 200mg4K/yr
- l theanine nature made5K/yr
- l-theanine chewable9K/yr
- sun theanine4K/yr
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.
All 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$18.374.6★1,820 rev
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$19.054.5★15,233 rev
Nature Made Chewable L Theanine 200mg L-Theanine Supplement for Stress Relief 50 Chewable Tablets 50 Day Supply
Nature Made$13.254.6★2,023 rev
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$34.904.6★1,820 rev
Swanson Double Potency Suntheanine L-Theanine Calm and Focus Supplement for Stress-Prone Professionals Seeking Balanced Wellbeing - 200 mg (60 Veggie Capsules)
Swanson$21.084.4★136 rev
Newest
by launch dateNature Made Chewable L Theanine 200mg L-Theanine Supplement for Stress Relief 50 Chewable Tablets 50 Day Supply
Nature Made$13.252,023 rev
Nutricost L-Theanine 200mg 120 Capsules Double Strength Gluten Free
Nutricost$11.919,940 rev
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$34.901,820 rev
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$19.0515,233 rev
NOW Foods Supplements L-Theanine 200 mg with Inositol Stress Management* 120 Veg Capsules
NOW Foods$21.337,341 rev
Trending
90-day click momentumSwanson Double Potency Suntheanine L-Theanine Calm and Focus Supplement for Stress-Prone Professionals Seeking Balanced Wellbeing - 200 mg (60 Veggie Capsules)
Swanson$21.084.4★
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$66.044.7★
NOW Foods Supplements L-Theanine 200 mg with Inositol Stress Management* 120 Veg Capsules
NOW Foods$21.334.7★
Nutricost L-Theanine 200mg 120 Capsules Double Strength Gluten Free
Nutricost$11.914.6★
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$19.054.5★
What reviews say buyers love and hate about l theanine chewable
What buyers praise and complain about, mined from review topics.What buyers love
“Helps with sleep”
“Good quality and trusted brand”
“Anxiety Relief”
“Improves mood”
“Very effective”
“Great effective supplement”
“good calming”
“Taste great and helps with sleep”
“Not hard to swallow”
“Worth it”
What buyers complain about
“Not effective”
“Terrible taste”
“Not worth it”
“Im struggling with terrible anxiety. GAD”
“Sleep aid not worth buying”
“Side effects, can't take”
“Not sure what this means for the 200mg which each tablet is supposed to include”
“A bit disappointing because I thought Id found a reasonable source of suntheanine”
“I did not feel any different in focus and relaxation”
“Added sugar artificial 3g per dose”
Top return reasons
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.