Is melatonin capsules profitable to sell on Amazon United States?

The niche generates $192K/yr across 18 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -5.1%. Flapen's verdict: Skip it (43/100).

How competitive is the melatonin capsules niche?

8 brands and 98 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 87% of demand.

What do buyers complain about in melatonin capsules?

Top complaints mined from reviews: Sleep Quality, Taste-Overall, Functionality-Overall. The return rate is 0.0%.

When does demand for melatonin capsules peak?

Demand peaks in Jan–Feb–Mar–May–Jun; the busiest month runs 3.6× the quietest.

What does it cost to enter the melatonin capsules niche?

Listings span $6.70–$16.66; the average listing price is $11.07 (sweet spot $15–$100). The average incumbent carries 9,085 reviews — the moat a new listing must climb.

Melatonin Capsules

Skip it

Prices mostly outside the sweet spot ($6.70–$16.66) — this niche doesn't clear our bar today.

Conversion

Incredible19.2%

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

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Okay$11.07

avg listing price — sweet spot $15–$100

Market size

Okay$192K

$192K/yr · 90K searches

Competition

Okay65%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay87%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-5.1%

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

Review moat

Bad9,084.67

avg incumbent reviews — the moat a new listing must climb

Price range

Bad$6.70–$16.66

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

Is melatonin capsules profitable on Amazon?

According to Flapen's Amazon United States niche tracking, melatonin capsules is a $192K/yr Amazon United States market (90K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Jan–Feb–Mar–May–Jun. Verdict: Skip it — 43/100.

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

melatonin capsules market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 20K–25K; avg 1,000–1,250/product
Revenue / yr: $221K–$277K; units × avg price
Conversion rate: 19.2%
Avg BSR: #264
Page quality: 0%
Prime: 94%
Sponsored: 72%
Out of stock: 2.1%
Avg brand age: 74 months
Avg seller age: 162 days

Competition: brands, sellers & click share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

8 flat

Sellers

Top-5 brand share

87%

Top 20: 100%

Top-5 click share

65%

Top 20: 100%

Open market

Nature Made40%
Nature's Bounty23%
Vitamatic9%
Amazon Basics8%
Carlyle7%
Natrol6%
Open — no brand owns it (2 brands, 7%)

melatonin capsules demand & seasonality

Weekly Amazon search volume, last 104 weeks — -5.1% search growth over the last 90 days.

Peak months: Jan, Feb, Mar, May, Jun · busiest ÷ quietest = 3.6×

Open Trend

Top melatonin capsules search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

nature made melatonin 10mg19K/yr +17.7%18.8% conv.
melatonin 10mg tablets17K/yr +2.9%12.3% conv.
natures bounty melatonin 10mg12K/yr -8.2%13.2% conv.
melatonin 10mg capsules8K/yr -0.2%15.5% conv.
melatonin 10 mg tablets6K/yr +17.6%15.8% conv.
melatonin pills 10mg3K/yr +9.2%16.8% conv.
melatonin 10mg nature made3K/yr +23.8%14.9% conv.
melatonin 10 mgs8K/yr -74.3%9.3% conv.
melatonin tablets 10mg3K/yr -10.9%17.2% conv.
melatonin 10mg pills3K/yr +23.6%21.4% conv.

All search terms

Top melatonin capsules 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.

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

Nature Made Melatonin 10mg Maximum Strength for Sleep Support 70 Tablets

Nature Made$10.954.7★6,851 rev

Melatonin by Natures Bounty 60 Count (Pack of 2)

Nature's Bounty$16.664.8★5,209 rev

Nature Made Melatonin 10 mg per Serving Gummies 120 Melatonin Gummies

Nature Made$16.124.6★10,794 rev

Vitamatic Melatonin 10 mg Fast Dissolve Tablets Quick-Dissolving Sleep Support Supplement for Adults Vegetarian Non-GMO & Gluten-Free Natural Berry Flavor 365 Tablets

Vitamatic$9.734.6★4,943 rev

Amazon Basics Extra Strength Melatonin Tablets 10 mg 120 Count

Amazon Basics$6.764.7★236 rev

Newest

by launch date

Nature Made Melatonin + Magnesium Gummies Melatonin 3mg 50 Gummies

Nature Made$14.8395 rev

5mo ago

Amazon Basics Extra Strength Melatonin Tablets 10 mg 120 Count

Amazon Basics$6.76236 rev

7mo ago

Vitamatic Melatonin 10 mg Fast Dissolve Tablets Quick-Dissolving Sleep Support Supplement for Adults Vegetarian Non-GMO & Gluten-Free Natural Berry Flavor 365 Tablets

Vitamatic$9.734,943 rev

3y ago

Nutricost Melatonin 10mg 240 Capsules Non-GMO & Gluten Free

Nutricost$12.81409 rev

3y ago

Nutricost Melatonin (10mg) 240 Tablets Gluten-Free GMO-Free

Nutricost$9.921,604 rev

5y ago

What reviews say buyers love and hate about melatonin capsules

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

What buyers love

Sleep Quality27%

“Helps me sleep”

Value For Money11%

“Very affordable”

Quality-Overall11%

“The quality is consistent”

Efficiency9%

“It does work”

Taste-Overall6%

“no weird taste”

Advertised Vs Actual Product5%

“Exactly as advertised”

Dosage3%

“with a well balanced dosage”

Ease Of Chewing/Swallowing3%

“not too hard to chew”

Solubility3%

“They are dissolvable”

Ease Of Use2%

“Ease of use”

What buyers complain about

Sleep Quality18%

“It doesnt help to sleep”

Taste-Overall15%

“Taste like crap”

Functionality-Overall10%

“Did Not Work”

Dosage6%

“10mg too high a dose”

Value For Money3%

“Too expensive”

Strength2%

“not strong enough”

Solubility2%

“Not fast dissolve”

Flavor2%

“Not strawberry flavor”

Bitter2%

“Bitter”

Side Effects2%

“but I dont get the desired effect either”

Top return reasons

Dosage40%

Functionality-Overall20%

Sleep Quality13%

Leak-Proof7%

Value For Money7%

Age Suitability7%

Side Effects7%

Common melatonin capsules questions

Is melatonin capsules profitable to sell on Amazon United States?: The niche generates $192K/yr across 18 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -5.1%. Flapen's verdict: Skip it (43/100).
How competitive is the melatonin capsules niche?: 8 brands and 98 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 87% of demand.
What do buyers complain about in melatonin capsules?: Top complaints mined from reviews: Sleep Quality, Taste-Overall, Functionality-Overall. The return rate is 0.0%.
When does demand for melatonin capsules peak?: Demand peaks in Jan–Feb–Mar–May–Jun; the busiest month runs 3.6× the quietest.
What does it cost to enter the melatonin capsules niche?: Listings span $6.70–$16.66; the average listing price is $11.07 (sweet spot $15–$100). The average incumbent carries 9,085 reviews — the moat a new listing must climb.