---
title: "L Theanine Gummies — £59K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/l-theanine-gummies"
last_updated: "2026-07-31T14:22:02.975Z"
locale: en
meta:
description: "Niche score 46/100 · £59K/yr market · 109K searches/yr · £11.33 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · £59K/yr market · 109K searches/yr · £11.33 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "L Theanine Gummies — £59K/yr Amazon UK Niche (2026) - Flapen"
---
# **l theanine gummies**
**Skip it**
A small market ($59K/yr) — this niche doesn't clear our bar today.
Market size 15Growth 21Conversion 56Competition 39Returns 100Price range 30Avg price 44Brand share 37Review moat 75Quality gap 78
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****506.17**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****4.8%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Okay****£11.33**
avg listing price — sweet spot $15–$100
**Competition**
**Okay****61%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Price range**
**Okay****£7.18–£18.36**
cheapest 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 ~~](https://flapen.com/research/methodology)
## **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.
3K2KSpike '26Apr '26Apr '26May '26May '26May '26Jun '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/l-theanine-gummies/trend)
## **Top l theanine gummies search terms**
- **shroom iq gummies kids**16K/yr+27.5%1.8% conv. - **focus gummies**9K/yr-9.3%6.0% conv. - **adhd gummies**11K/yr-28.8%2.0% conv. - **adhd gummies for kids**6K/yr+27.7%5.9% conv. - **lions mane for kids**10K/yr-28.4%3.9% conv. - **kids calming gummies**5K/yr-12.4%6.4% conv. - **adhd vitamins for kids**8K/yr-26.9%3.7% conv. - **adhd supplement kids**6K/yr-3.1%3.5% conv. - **adhd calming tablets for kids**3K/yr+19.4%2.1% conv. - **mushroom gummies for kids**5K/yr-17.6%4.2% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/l-theanine-gummies/search-terms)
## **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.
0%10%£6K20%£12K30%£18K40%£24K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**£9.39**4.1★279 rev](https://www.amazon.co.uk/dp/B0FQKFJWN2) [2**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**£7.72**4.2★83 rev](https://www.amazon.co.uk/dp/B0G14VLHMG) [3**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**£8.03**4.1★730 rev](https://www.amazon.co.uk/dp/B0DXL4XGMJ) [4**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**£7.99**4.4★3,894 rev](https://www.amazon.co.uk/dp/B09ZZM9YWF) [5**RESCUE Kids Chill Gummies |StrawberryFlavour | Gentle Support forGrowing Emotions| Bach Original Flower Essences |30 Vegan Gummies**RESCUE**£8.48**4.6★51 rev](https://www.amazon.co.uk/dp/B0GH94RN5F)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**RESCUE Kids Chill Gummies |StrawberryFlavour | Gentle Support forGrowing Emotions| Bach Original Flower Essences |30 Vegan Gummies**RESCUE**£8.48**51 rev6mo ago](https://www.amazon.co.uk/dp/B0GH94RN5F) [**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**£16.02**9 rev7mo ago](https://www.amazon.co.uk/dp/B0G656719X) [**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**£7.72**83 rev8mo ago](https://www.amazon.co.uk/dp/B0G14VLHMG) [**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**£15.23**78 rev9mo ago](https://www.amazon.co.uk/dp/B0G5ZWFKTN) [**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**£13.38**21 rev9mo ago](https://www.amazon.co.uk/dp/B0FXMJ8QH3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**£16.02**5.0★**▲ 311%**](https://www.amazon.co.uk/dp/B0G656719X) [**RESCUE Kids Chill Gummies |StrawberryFlavour | Gentle Support forGrowing Emotions| Bach Original Flower Essences |30 Vegan Gummies**RESCUE**£8.48**4.6★**▲ 273%**](https://www.amazon.co.uk/dp/B0GH94RN5F) [**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**£9.80**3.8★**▲ 150%**](https://www.amazon.co.uk/dp/B0FMYW4HBV) [**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**£15.23**3.4★**▲ 148%**](https://www.amazon.co.uk/dp/B0G5ZWFKTN) [**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**£18.36**4.2★**▲ 139%**](https://www.amazon.co.uk/dp/B0FJ6C4BPN)
**~~View all trending →~~**
## **What buyers say about l theanine gummies**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**15%
*“They are easy to take the taste is pleasant”*
**Sleep Quality**11%
*“sleeping better”*
**Focus Enhancement**7%
*“helped with concentration”*
**Quality-Overall**6%
*“The quality of the product is clear”*
**Flavor**6%
*“Pleasant raspberry flavour”*
**Value For Money**4%
*“Good value for money”*
**Stress/Anxiety**4%
*“Helps with stress management and focus”*
**Ease Of Chewing/Swallowing**4%
*“easy to chew”*
**Ease Of Use**3%
*“Ease of use”*
**Vitamin**3%
*“Very good vitamins that taste really good”*
### **What buyers complain about **
**Taste-Overall**15%
*“the taste is a bit odd”*
**Sleep Quality**9%
*“We had no improvement with sleep”*
**Functionality-Overall**5%
*“Did not work”*
**Bitter**4%
*“Really bitter”*
**Smell**3%
*“Smells and tastes like plastic”*
**Age Suitability**3%
*“Not suitable for kids”*
**Flavor**3%
*“Flavour may not be the best for some”*
**Ingredients-Overall**2%
*“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”*
**Value For Money**2%
*“Waste of money”*
**Vitamin**2%
*“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.
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