l theanine gummies
Skip itA small market ($59K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Review moat
Good506.17avg incumbent reviews — the moat a new listing must climb
Conversion
Good4.8%search→purchase rate — share of searches ending in a sale
Avg price
Okay£11.33avg listing price — sweet spot $15–$100
Competition
Okay61%top-5 click share — leaders hold, buyers still browse
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Price range
Okay£7.18–£18.36cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-7.8%90-day search growth — must beat 0% to launch
Market size
Bad£59K£59K/yr · 109K searches
According to Flapen's Amazon United Kingdom niche tracking, l theanine gummies is a £59K/yr Amazon United Kingdom market (109K searches/yr). The top 5 brands hold 83% of demand. Verdict: Skip it — 46/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
l theanine gummies market data
- Units sold / yr
- 4K–5K
- avg 100–250/product
- Revenue / yr
- £45K–£57K
- units × avg price
- Conversion rate
- 4.8%
- Avg BSR
- #121
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.4%
- Avg brand age
- 36 months
- Avg seller age
- 163 days
Competition & brand share
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.Brands
13 falling
Sellers
21
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
61%
Top 20: 100%
Open market
14%
- novomins60%
- RESCUE8%
- Shruum5%
- Neurospice5%
- Haliborange4%
- Nutrigums4%
- Open — no brand owns it (7 brands, 14%)
Demand
Weekly Amazon search volume, last 16 weeks — -7.8% search growth over the last 90 days.Top l theanine gummies search terms
- shroom iq gummies kids16K/yr
- focus gummies9K/yr
- adhd gummies11K/yr
- adhd gummies for kids6K/yr
- lions mane for kids10K/yr
- kids calming gummies5K/yr
- adhd vitamins for kids8K/yr
- adhd supplement kids6K/yr
- adhd calming tablets for kids3K/yr
- mushroom gummies for kids5K/yr
Top l theanine gummies products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Kids Focus Gummies Nootropic High Strength Brain Supplement for Children 9 Focus Energy Positive Mood Vitamins Lions Mane Ginseng B12 Iodine Vegan - by Novomins
novomins£9.394.1★279 rev
Kids Lions Mane Gummies - 30 Sugar Free Gummies - Mushroom Complex with Zinc Vitamin B6 Folic Acid - Sugar-Free - Lions Mane Supplement for Mental Performance - Vegan - Strawberry Flavour - Novomins
novomins£7.724.2★83 rev
Kids L Theanine Gummies - 1 Month Supply - 50mg with Lemon Balm & Vitamin B6 to Improve Kids Focus & Concentration - 30 Count - Vegan L Theanine Supplements Gummies - Novomins
novomins£8.034.1★730 rev
Kids Magnesium Gummies - 546 Mg Magnesium Citrate Providing 60 mg of Magnesium - Alternative to Magnesium Glycinate 30 Gummies - 1 Month Supply Magnesium Supplements - Vegan - Gluten Free - Novomins
novomins£7.994.4★3,894 rev
RESCUE Kids Chill Gummies |StrawberryFlavour | Gentle Support forGrowing Emotions| Bach Original Flower Essences |30 Vegan Gummies
RESCUE£8.484.6★51 rev
Newest
by launch dateRESCUE Kids Chill Gummies |StrawberryFlavour | Gentle Support forGrowing Emotions| Bach Original Flower Essences |30 Vegan Gummies
RESCUE£8.4851 rev
DoctorShrooms Mushroom Gummies for Kids | Multi Functional Blend with Lions Mane & Cordyceps | Focus Calm & Immune Balance Support | Vegan & Sugar Free | 60 Pack (Mixed Berries)
DoctorShrooms£16.029 rev
Kids Lions Mane Gummies - 30 Sugar Free Gummies - Mushroom Complex with Zinc Vitamin B6 Folic Acid - Sugar-Free - Lions Mane Supplement for Mental Performance - Vegan - Strawberry Flavour - Novomins
novomins£7.7283 rev
Tonic Health Kids Magnesium Gummies - 120mg Magnesium Citrate for Children Ashwagandha KSM-66 Lemon Balm - No Sugar Calm and Balanced - Age 3-12 Years Vegan - Raspberry 60 Count
Tonic Health£15.2378 rev
Kids Magnesium Gummies | 2-Month Supply | Calm Magnesium Citrate Supplement | 90mg of Elemental Magnesium | Vegan | Natural Mixed Berry Flavour | 60 Count | Natural Vitality
Natural Vitality£13.3821 rev
Trending
90-day click momentumDoctorShrooms Mushroom Gummies for Kids | Multi Functional Blend with Lions Mane & Cordyceps | Focus Calm & Immune Balance Support | Vegan & Sugar Free | 60 Pack (Mixed Berries)
DoctorShrooms£16.025.0★
RESCUE Kids Chill Gummies |StrawberryFlavour | Gentle Support forGrowing Emotions| Bach Original Flower Essences |30 Vegan Gummies
RESCUE£8.484.6★
Haliborange YoungerMinds Mind & Mood Gummies for Kids 616 Sugar-Free Daily Supplement with Magnesium L-Tyrosine Thiamin & Chamomile Supports Focus Calm & Emotional Balance 60 Gummies
Haliborange£9.803.8★
Tonic Health Kids Magnesium Gummies - 120mg Magnesium Citrate for Children Ashwagandha KSM-66 Lemon Balm - No Sugar Calm and Balanced - Age 3-12 Years Vegan - Raspberry 60 Count
Tonic Health£15.233.4★
Neurospice Saffron Gummies | Adults & Kids 4+ | Doctor-Formulated | High Strength Extract for Mood Focus Stress & Sleep Support | Vegan Sugar-Free & Tasty Fruit Flavour | 60 Count
Neurospice£18.364.2★
What buyers say about l theanine gummies
What buyers praise and complain about, mined from review topics.What buyers love
“They are easy to take the taste is pleasant”
“sleeping better”
“helped with concentration”
“The quality of the product is clear”
“Pleasant raspberry flavour”
“Good value for money”
“Helps with stress management and focus”
“easy to chew”
“Ease of use”
“Very good vitamins that taste really good”
What buyers complain about
“the taste is a bit odd”
“We had no improvement with sleep”
“Did not work”
“Really bitter”
“Smells and tastes like plastic”
“Not suitable for kids”
“Flavour may not be the best for some”
“all of the crap packed into the ingredients has completely changed my mind on the use of these for a small child. or anyone for that matter”
“Waste of money”
“not like other gummy vitamins we use”
Common questions
- Is l theanine gummies profitable to sell on Amazon United Kingdom?
- The niche generates £59K/yr across 18 tracked products. 6 of 8 products launched in the last 360 days are still selling. 90-day search growth is -7.8%. Flapen's verdict: Skip it (46/100).
- How competitive is the l theanine gummies niche?
- 13 brands and 21 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in l theanine gummies?
- Top complaints mined from reviews: Taste-Overall, Sleep Quality, Functionality-Overall. The return rate is 0.1%.
- What does it cost to enter the l theanine gummies niche?
- Listings span £7.18–£18.36; the average listing price is £11.33 (sweet spot $15–$100). The average incumbent carries 506 reviews — the moat a new listing must climb.