---
title: "Melatonin 300 Mcg — $15K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/melatonin-300-mcg"
last_updated: "2026-08-12T12:37:53.138Z"
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description: "Amazon product research for melatonin 300 mcg: $15K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for melatonin 300 mcg: $15K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Melatonin 300 Mcg — $15K/mo Amazon US Product Research"
---
# **Melatonin 300 Mcg**
**Skip it**
A concentrated shelf (top 5 take 74% of clicks) — this niche doesn't clear our bar today.
Market size 36Growth 25Conversion 97Competition 22Returns 100Price range 60Avg price 67Brand share 26Review moat 24Quality gap 28
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****14.4%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$14.09**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$4.78–$30.26**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Okay****$180K**
$180K/yr · 89K searches
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****90%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+0.1%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****5,513.93**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****74%**
top-5 click share — a locked-up shelf
## **Is melatonin 300 mcg profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, melatonin 300 mcg is a $180K/yr Amazon United States market (89K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 45/100.
Data updated Jul 12, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **melatonin 300 mcg market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **13K–15K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$176K–$211K**
- units × avg price
- **Conversion rate**
- **14.4%**
- **Avg BSR**
- **#373**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **93%**
- **Out of stock**
- **2.6%**
- **Avg brand age**
- **82 months**
- **Avg seller age**
- **160 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **—flat
**Sellers**
**32**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**74%**
Top 20: 100%
**Open market**
**6%**
- Life Extension40% - Pure Encapsulations18% - Carlyle13% - Nature's Bounty10% - Natrol8% - ZzzQuil4% - Open — no brand owns it (3 brands, 6%)
## **melatonin 300 mcg demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +0.1% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/health-household/melatonin-300-mcg/trend)
## **Top melatonin 300 mcg search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **low dose melatonin**32K/yr+3.8%10.8% conv. - **melatonin low dose**11K/yr-0.8%11.4% conv. - **melatonin 300 mcg**12K/yr-9.8%16.9% conv. - **melatonin 300mcg**5K/yr+23.8%19.2% conv. - **melatonin 0.3mg**5K/yr-12.6%15.1% conv. - **300 mcg melatonin**4K/yr+1.4%16.0% conv. - **life extension melatonin 300 mcg**3K/yr+33.9%32.1% conv. - **micro melatonin**4K/yr-5.9%16.6% conv. - **melatonin 500 mcg**3K/yr-6.0%14.8% conv. - **300mcg melatonin**3K/yr-3.4%16.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/melatonin-300-mcg/search-terms)
## **Top melatonin 300 mcg 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%10%$18K20%$36K30%$54K40%$72K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Life Extension Melatonin 300 mcg Gentle Sleep Support Healthy circadian Rhythms Cellular Defense Gluten-Free Non-GMO Vegetarian 100 Capsules**Life Extension**$7.19**4.5★1,133 rev](https://www.amazon.com/dp/B000X9QZZ2) [2**Carlyle Melatonin 300 mcg | 365 Tablets | Low Dose | Vegetarian Non-GMO Gluten Free**Carlyle**$10.01**4.6★536 rev](https://www.amazon.com/dp/B09F3TMDHY) [3**Pure Encapsulations Melatonin 0.5 mg - Natural Sleep Helper for Bedtime - Regulates Sleep-Wake Cycle* - 0.5 mg Melatonin - Vegan & Non-GMO - 60 Capsules**Pure Encapsulations**$12.21**4.6★1,202 rev](https://www.amazon.com/dp/B000VYVU9K) [4**Life Extension Melatonin 6 Hour Timed Release 300 mcg Extended-Release Formula for Gentle Sleep Support Healthy circadian Rhythms Cellular Defense Gluten-Free Non-GMO Vegetarian 100 Tablets**Life Extension**$8.03**4.4★1,822 rev](https://www.amazon.com/dp/B00CDABRUW) [5**Natures Bounty Melatonin 100% Drug Free Sleep Aid Promotes Relaxation and Sleep Health 1mg 180 Tablets**Nature's Bounty**$4.78**4.6★9,967 rev](https://www.amazon.com/dp/B0013NB6ZQ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Carlyle Melatonin 300 mcg | 365 Tablets | Low Dose | Vegetarian Non-GMO Gluten Free**Carlyle**$10.01**536 rev4y ago](https://www.amazon.com/dp/B09F3TMDHY) [**Natrol Melatonin 1mg Fast Dissolve Tablets - Strawberry Flavor 200 Count Sleep Aids for Adults Fast Dissolve Melatonin for Adults 200-Day Supply**Natrol**$13.97**16,994 rev7y ago](https://www.amazon.com/dp/B07S5XBJV7) [**ZzzQuil Pure Zzzs Melatonin Gummies Sleep Aid Melatonin 2mg with Chamomile and Lavender Melatonin Sleep Gummies Sleep Aids for Adults Wildberry Vanilla Flavored 72 Sleep Gummies**ZzzQuil**$17.02**24,905 rev7y ago](https://www.amazon.com/dp/B07N46LTJJ) [**Landau 0.3mg-300 mcg Melty Melatonin for Kids & Adults Easy-to-Take Fast-Dissolving Helps You Fall Asleep Faster Kosher Made in The USA 100 Tablets Cherry Flavor**LANDAU**$15.75**138 rev7y ago](https://www.amazon.com/dp/B07LDVJXSQ) [**Pure Encapsulations Melatonin-SR - Extended Release Melatonin - Supports Restful Sleep* - Sleep Supplement - Gluten Free & Vegan - 60 Capsules**Pure Encapsulations**$18.82**1,542 rev9y ago](https://www.amazon.com/dp/B071KN44Z8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Natrol Melatonin 1mg Fast Dissolve Tablets - Strawberry Flavor 200 Count Sleep Aids for Adults Fast Dissolve Melatonin for Adults 200-Day Supply**Natrol**$13.97**4.7★**▲ 104%**](https://www.amazon.com/dp/B07S5XBJV7) [**ZzzQuil Pure Zzzs Melatonin Gummies Sleep Aid Melatonin 2mg with Chamomile and Lavender Melatonin Sleep Gummies Sleep Aids for Adults Wildberry Vanilla Flavored 72 Sleep Gummies**ZzzQuil**$17.02**4.5★**▲ 30%**](https://www.amazon.com/dp/B07N46LTJJ) [**Melatonin Capsules | 300mcg | 120 Pills | Supports Healthy Sleep Cycles | Promotes Relaxation | Natural Sleep Aid Supplement**Nootropics Depot**$19.92**4.5★**▲ 20%**](https://www.amazon.com/dp/B01HFN5NVU) [**Pure Encapsulations Melatonin 0.5 mg - Natural Sleep Helper for Bedtime - Regulates Sleep-Wake Cycle* - 0.5 mg Melatonin - Vegan & Non-GMO - 180 Capsules**Pure Encapsulations**$30.26**4.6★**▲ 11%**](https://www.amazon.com/dp/B00166FXY0) [**Natrol Fast Dissolve Melatonin 1 mg Sleep Support for Adults Sleeping Aid Dietary Supplements Melatonin for Adults 90 Tablets**Natrol**$6.59**4.7★**— 7%**](https://www.amazon.com/dp/B00C3Q5JVE)
**~~View all trending →~~**
## **What reviews say buyers love and hate about melatonin 300 mcg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**35%
*“Helps me sleep”*
**Dosage**11%
*“Perfect dose”*
**Quality-Overall**9%
*“Good quality”*
**Taste-Overall**6%
*“Tastes Like Candy”*
**Efficiency**5%
*“This is effective”*
**Value For Money**4%
*“reasonable price”*
**Advertised Vs Actual Product**2%
*“Works as advertised”*
**Stress/Anxiety**2%
*“It helps me relax”*
**Ingredients-Overall**2%
*“ingredients are safe”*
**Side Effects**1%
*“had no issues”*
### **What buyers complain about **
**Sleep Quality**24%
*“No sleep”*
**Functionality-Overall**11%
*“Doesn't work”*
**Dosage**7%
*“5mg or 10mg or whatever is way too much”*
**Value For Money**5%
*“Expensive”*
**Taste-Overall**5%
*“Strange After Taste And Feel”*
**Ease Of Use**3%
*“And difficult to open”*
**Quality-Overall**3%
*“but overall, its a bad product”*
**Size-Overall**3%
*“too big”*
**Ingredients-Overall**2%
*“Include hazardous and poisonous ingredients not listed on amazon”*
**Side Effects**2%
*“It gave me hives so badly I nearly went to hospital”*
### **Top return reasons **
**Sleep Quality**27%
**Functionality-Overall**18%
**Dosage**18%
**Ease Of Use**18%
**Side Effects**9%
**Ingredients-Overall**9%
## **Common melatonin 300 mcg questions**
- **Is melatonin 300 mcg profitable to sell on Amazon United States?**
- The niche generates $180K/yr across 14 tracked products. 90-day search growth is +0.1%. Flapen's verdict: Skip it (45/100).
- **How competitive is the melatonin 300 mcg niche?**
- 9 brands and 32 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in melatonin 300 mcg?**
- Top complaints mined from reviews: Sleep Quality, Functionality-Overall, Dosage. The return rate is 0.0%.
- **When does demand for melatonin 300 mcg peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the melatonin 300 mcg niche?**
- Listings span $4.78–$30.26; the average listing price is $14.09 (sweet spot $15–$100). The average incumbent carries 5,514 reviews — the moat a new listing must climb.
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