---
title: "Melatonin — £1.1M/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/melatonin"
last_updated: "2026-07-31T08:06:33.184Z"
locale: en
meta:
description: "Niche score 61/100 · £1.1M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 61/100 · £1.1M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Melatonin — £1.1M/yr Amazon UK Niche (2026) - Flapen"
---
# **melatonin**
**Worth a look**
Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 79Growth 9Conversion 41Competition 55Returns 100Price range 57Avg price 67Brand share 78Review moat 46Quality gap 88
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Market size**
**Great****£1.1M**
£1.1M/yr · 2.4M searches
**Brand share**
**Great****57%**
top-5 brand share — no brand owns this niche
**Avg price**
**Good****£14.03**
avg listing price — sweet spot $15–$100
**Price range**
**Good****£5.18–£28.17**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****52%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****1,883.9**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****3.2%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-32.5%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500") [** Out of Stock**](https://flapen.com/research/niches?market=uk&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon United Kingdom niche tracking, melatonin is a £1.1M/yr Amazon United Kingdom market (2.4M searches/yr). The top 5 brands hold 57% of demand. Demand peaks in Jan–Feb. Verdict: Worth a look — 61/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **melatonin market data**
- **Units sold / yr**
- **80K–100K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **£1.1M–£1.4M**
- units × avg price
- **Conversion rate**
- **3.2%**
- **Avg BSR**
- **#445**
- **Page quality**
- **0%**
- **Prime**
- **94%**
- **Sponsored**
- **84%**
- **Out of stock**
- **6.7%**
- **Avg brand age**
- **32 months**
- **Avg seller age**
- **161 days**
## **Competition & brand share**
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**24 **▼falling
**Sellers**
**55**
**Top-5 brand share**
**57%**
Top 20: 96%
**Top-5 click share**
**52%**
Top 20: 89%
**Open market**
**37%**
- Hybrid Health14% - Generic14% - HILLTEN HEALTH14% - Unerder9% - novomins7% - NavoSupply6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -32.5% search growth over the last 90 days.
70K50KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/melatonin/trend)
## **Top melatonin search terms**
- **melatonin**890K/yr-27.9%1.5% conv. - **melatonin gummies**537K/yr-37.4%2.6% conv. - **sleep gummies**352K/yr-29.9%4.9% conv. - **melatonin tablets for sleeping**172K/yr-33.5%1.6% conv. - **lemme sleep gummies**91K/yr-26.9%0.3% conv. - **sleep gummies for adults**83K/yr-38.3%5.9% conv. - **melatonin tablets**45K/yr-33.4%0.7% conv. - **sleeping gummies**27K/yr-27.0%3.9% conv. - **melatonin 5mg**24K/yr-21.2%0.7% conv. - **melatonin gummies for adults**29K/yr-52.0%2.9% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/melatonin/search-terms)
## **Top melatonin 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%4%£44K8%£88K12%£131K16%£175K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Sugar-Free Sleep Gummies x 60 Sleep Aid 8-in-1 Formula with Ashwagandha L Theanine 5 HTP Magnesium & More High Strength Natural Berry Flavoured Get Koala-Ty Sleep 60 Gummies**Hybrid Health**£12.50**3.9★390 rev](https://www.amazon.co.uk/dp/B0DJ32HLRN) [2**Natural Sleep Support Gummies for Adults - Melatonic Formula for Restful Nights Sleep Gummies Promoting Natural Melatonin Production Promotes Healthy Sleep Patterns 60 Count**HILLTEN HEALTH**£14.27**4.0★151 rev](https://www.amazon.co.uk/dp/B0CTKR7K6D) [3**szcrearions Night time Gummies x60 | DeepSleepV-Root Magnesium L-Theanine | Natural Bedtime Supplement | Sugar Free Gummies**Generic**£16.84**4.0★61 rev](https://www.amazon.co.uk/dp/B0FCPKJFG3) [4**Sugar Free Sleep Gummies Night Time Gummies x 90 Natural Melatonin Formula Promote Relaxation Helps Improve Sleep Quality with Magnesium L-Theanine Gluten Free**Unerder**£15.78**3.9★12 rev](https://www.amazon.co.uk/dp/B0GJBHW5NW) [5**NavoSupply-Gummies for Sleep Support & Mood Enhancement Sleep Gummies | Natural Berry Flavor Sleep Aid Supplement (90 Gummy)**NavoSupply**£18.82**4.5★1,116 rev](https://www.amazon.co.uk/dp/B0FVWWKMZX)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Sweet Dreams Gummies for Adults with Magnesium Lavender Chamomile L-Theanine & Ashwagandha Sleep Supplement Relaxation & Night-Time Support | Sugar Free Vegan 60 Gummies |Berries Flavour| (1)**Izkan**£8.85**28 rev2mo ago](https://www.amazon.co.uk/dp/B0GZGDMLL3) [**Sleep Gummies for Adults - Sleep Aid with 5-HTP Valerian Root Magnesium L-Theanine & Vitamin B6 Alternative to Melatonin Tablets Berry Bliss Flavour 60 Gummies**Keka Naturals**£12.53**44 rev3mo ago](https://www.amazon.co.uk/dp/B0GVKLNQ39) [**Melatonin.High Quality Nighttime Sleep Support.Sleep Supplement.60 Capsules.**Generic**£28.17**5 rev5mo ago](https://www.amazon.co.uk/dp/B0GLGT19BN) [**INTENSE Wellness Easy Sleep Gummies for Adults Magnesium Glycinate 100mg + Valerian Root Ashwagandha & Lemon Balm Sugar-Free Vegan Night-Time Gummies Strawberry 90 Count**Intense Wellness**£14.75**74 rev6mo ago](https://www.amazon.co.uk/dp/B0GGST83TV) [**Sleep Oracles Sleep Aid | 600mg Magnesium Glycinate with L-Theanine Passionflower & Valerian Root Relaxation & Sleep Support Blend | Vegan & Gluten Free Night-Time Supplement for Adults | 60 Capsules**Sleep Oracles**£9.89**376 rev6mo ago](https://www.amazon.co.uk/dp/B0GF9K4XNP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Sweet Dreams Gummies for Adults with Magnesium Lavender Chamomile L-Theanine & Ashwagandha Sleep Supplement Relaxation & Night-Time Support | Sugar Free Vegan 60 Gummies |Berries Flavour| (1)**Izkan**£8.85**4.4★**▲ 286%**](https://www.amazon.co.uk/dp/B0GZGDMLL3) [**Sleep Gummies for Adults - Sleep Aid with 5-HTP Valerian Root Magnesium L-Theanine & Vitamin B6 Alternative to Melatonin Tablets Berry Bliss Flavour 60 Gummies**Keka Naturals**£12.53**3.7★**▲ 280%**](https://www.amazon.co.uk/dp/B0GVKLNQ39) [**Dr. Wolz Sleep Spray Optimal Combination with Melatonin and Passion Flower Extract No Preservatives and Sugar 30 ml Blue**Dr. Wolz**£10.14**3.9★**▲ 261%**](https://www.amazon.co.uk/dp/B07MGHC4G2) [**Sleep Deep Vegan Gummies 6mg Melatonin 60 Fruit-Pectin Gummies with L-Theanine and Magnesium Lab Tested for Quality Gluten Free**THE KEEP TUNSTALL**£16.74**2.9★**▲ 187%**](https://www.amazon.co.uk/dp/B0G2ZQ1Z3G) [**Sugar Free Sleep Gummies Night Time Gummies x 90 Natural Melatonin Formula Promote Relaxation Helps Improve Sleep Quality with Magnesium L-Theanine Gluten Free**Unerder**£15.78**3.9★**▲ 156%**](https://www.amazon.co.uk/dp/B0GJBHW5NW)
**~~View all trending →~~**
## **What buyers say about melatonin**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**32%
*“HELPS WITH SLEEP”*
**Quality-Overall**11%
*“Excellent product”*
**Value For Money**7%
*“Good value for money”*
**Taste-Overall**6%
*“Good taste”*
**Magnesium**6%
*“Best magnesium capsules”*
**Advertised Vs Actual Product**3%
*“As Advertised”*
**Efficiency**3%
*“Does the job”*
**Ease Of Chewing/Swallowing**2%
*“Easy to swallow”*
**Ease Of Use**2%
*“Easy to use”*
**Muscle Pain Relief**2%
*“helps muscle cramps”*
### **What buyers complain about **
**Sleep Quality**21%
*“Do not help sleep”*
**Functionality-Overall**14%
*“DOESNT WORK”*
**Magnesium**5%
*“This magnesium does not work”*
**Value For Money**4%
*“Way too expensive”*
**Dosage**3%
*“The dosage is far too high”*
**Acid Regulator/Stomach Ache Relief**3%
*“Gives you stomach cramps”*
**Advertised Vs Actual Product**3%
*“False information”*
**Side Effects**3%
*“Will make you ill”*
**Taste-Overall**3%
*“Horrible taste”*
**Quality-Overall**2%
*“not as good as expected”*
### **Top return reasons **
**Joint Pain**50%
**Magnesium**50%
## **Common questions**
- **Is melatonin profitable to sell on Amazon United Kingdom?**
- The niche generates £1.1M/yr across 31 tracked products. 6 of 12 products launched in the last 360 days are still selling. 90-day search growth is -32.5%. Flapen's verdict: Worth a look (61/100).
- **How competitive is the melatonin niche?**
- 24 brands and 55 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 57% of demand.
- **What do buyers complain about in melatonin?**
- Top complaints mined from reviews: Sleep Quality, Functionality-Overall, Magnesium. The return rate is 0.1%.
- **When does demand for melatonin peak?**
- Demand peaks in Jan–Feb; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the melatonin niche?**
- Listings span £5.18–£28.17; the average listing price is £14.03 (sweet spot $15–$100). The average incumbent carries 1,884 reviews — the moat a new listing must climb.
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