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65

Melatonin

Launch it

A $25.0M/yr market growing +0.4% this quarter with returns at 0.0% — clears our launch bar.

Market size 100Growth 26Conversion 98Competition 75Returns 100Price range 56Avg price 55Brand share 62Review moat 17Quality gap 28

Market size

Incredible$25.0M

$25.0M/yr · 11.8M searches

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible16.9%

search→purchase rate — share of searches ending in a sale

Competition

Great40%

top-5 click share — an open shelf

Brand share

Good68%

top-5 brand share — brands hold most of the demand

Price range

Good$4.51–$28.61

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Good$12.55

avg listing price — sweet spot $15–$100

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Okay+0.4%

90-day search growth — must beat 0% to launch

Review moat

Bad19,574.69

avg incumbent reviews — the moat a new listing must climb

Is melatonin profitable on Amazon?

According to Flapen's Amazon United States niche tracking, melatonin is a $25.0M/yr Amazon United States market (11.8M searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Jul. Verdict: Launch it — 65/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

melatonin market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.
Units sold / yr
1.0M–1.0M
avg 50,000–60,000/product
Revenue / yr
$12.6M–$12.6M
units × avg price
Conversion rate
16.9%
Avg BSR
#65
Page quality
0%
Prime
100%
Sponsored
87%
Out of stock
0.0%
Avg brand age
56 months
Avg seller age
144 days

Competition: brands, sellers & click share

Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.

Brands

17 falling

Sellers

681

Top-5 brand share

68%

Top 20: 100%

Top-5 click share

40%

Top 20: 77%

Open market

25%

  • Natrol31%
  • Amazon Basics13%
  • OLLY9%
  • ZzzQuil7%
  • Nature Made7%
  • Nature's Bounty7%

melatonin demand & seasonality

Weekly Amazon search volume, last 104 weeks — +0.4% search growth over the last 90 days.
250K150KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul · busiest ÷ quietest = 1.6×

Top melatonin search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.
  • melatonin6.0M/yr
  • melatonin gummies2.7M/yr
  • melatonin 10mg1.5M/yr
  • sleep gummies436K/yr
  • sleep gummies for adults244K/yr
  • melatonina184K/yr
  • gomitas para dormir139K/yr
  • melatonina 10mg para adultos91K/yr
  • melatonin 10 mg60K/yr
  • sleeping gummies55K/yr
All search terms

Top melatonin 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%3%$750K6%$1.5M9%$2.2M12%$3.0M1001K10K100K1.0M Reviews — right = deep review moat Market 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.

What reviews say buyers love and hate about melatonin

What buyers praise and complain about, mined from review topics.

What buyers love

Sleep Quality34%

“Good night's sleep”

Taste-Overall12%

“Doesnt taste bad”

Quality-Overall8%

“The quality is consistent”

Efficiency7%

“Well effective”

Value For Money7%

“Very affordable”

Advertised Vs Actual Product4%

“Exactly as advertised”

Dosage3%

“Perfect dose for me”

Flavor2%

“Good grape flavor”

Ease Of Use2%

“* convenient for occasional use”

Ease Of Chewing/Swallowing2%

“Easy to swallow”

What buyers complain about

Sleep Quality24%

“doesn't help me sleep”

Functionality-Overall17%

“DID NOT WORK”

Taste-Overall9%

“Awful tasting”

Dosage7%

“Warning, the dosage is too high”

Value For Money3%

“Not Worth The Price”

Side Effects2%

“Made me sick”

Quality-Overall2%

“Poor Quality Control”

Advertised Vs Actual Product1%

“False Information”

Flavor1%

“The flavor is very artificial”

Strength1%

“A bit Weak”

Top return reasons

Functionality-Overall27%
Sleep Quality18%
Dosage12%
Value For Money6%
Side Effects4%
Taste-Overall4%
Advertised Vs Actual Product3%
Magnesium2%
Ease Of Chewing/Swallowing2%
Solubility2%

Common melatonin questions

Is melatonin profitable to sell on Amazon United States?
The niche generates $25.0M/yr across 45 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +0.4%. Flapen's verdict: Launch it (65/100).
How competitive is the melatonin niche?
17 brands and 681 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 68% of demand.
What do buyers complain about in melatonin?
Top complaints mined from reviews: Sleep Quality, Functionality-Overall, Taste-Overall. The return rate is 0.0%.
When does demand for melatonin peak?
Demand peaks in Jul; the busiest month runs 1.6× the quietest.
What does it cost to enter the melatonin niche?
Listings span $4.51–$28.61; the average listing price is $12.55 (sweet spot $15–$100). The average incumbent carries 19,575 reviews — the moat a new listing must climb.