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calm magnesium glycinate

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 35Growth 24Conversion 84Competition 22Returns 100Price range 95Avg price 95Brand share 0Review moat 22Quality gap 57

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$25.14

avg listing price — sweet spot $15–$100

Price range

Incredible$16.25–$43.48

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

Conversion

Great9.3%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Okay$170K

$170K/yr · 73K searches

Growth

Bad-3.0%

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

Competition

Bad74%

top-5 click share — a locked-up shelf

Review moat

Bad9,950.14

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, calm magnesium glycinate is a $170K/yr Amazon United States market (73K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 47/100.

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

calm magnesium glycinate market data

Units sold / yr
5K–6K
avg 250–500/product
Revenue / yr
$126K–$151K
units × avg price
Conversion rate
9.3%
Avg BSR
#633
Page quality
0%
Prime
100%
Sponsored
93%
Out of stock
8.3%
Avg brand age
44 months
Avg seller age
165 days

Competition & brand share

The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 falling

Sellers

569

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

74%

Top 20: 100%

Open market

0%

  • Natural Vitality94%
  • Nello4%
  • Pure Encapsulations2%
  • Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 70 weeks — -3.0% search growth over the last 90 days.
2K2KSpike '25Prime Day '25AprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJul

No pronounced peak months · busiest ÷ quietest = 1.3×

Top calm magnesium glycinate search terms

  • calm magnesium glycinate46K/yr
  • magnesium glycinate calm16K/yr
  • calm capsules6K/yr
  • calm magnesium capsules4K/yr
All search terms

Top calm magnesium glycinate 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%$17K20%$34K30%$51K40%$68K101001K10K100K Reviews — right = deep review moat Market 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.

What buyers say about calm magnesium glycinate

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

What buyers love

Sleep Quality20%

“Sleep like a baby”

Quality-Overall14%

“High quality Suppliment”

Magnesium9%

“Great Magnesium Pills”

Taste-Overall8%

“Good taste”

Stress/Anxiety4%

“Helps with my anxiety”

Efficiency3%

“Works perfectly”

Soothing Effect3%

“Great calming”

Advertised Vs Actual Product3%

“As advertised”

Vitamin3%

“Favorite vitamin”

Value For Money2%

“Good product for the price”

What buyers complain about

Sleep Quality14%

“I was having trouble sleeping”

Taste-Overall8%

“HORRIBLE taste”

Functionality-Overall6%

“Was not effective”

Magnesium5%

“I must not be able to tolerate magnesium”

Side Effects5%

“Bad Side effects”

Size-Overall4%

“Too Big”

Value For Money4%

“its a little pricey”

Dosage3%

“High dose”

Quality-Overall3%

“Poor quality control”

Acid Regulator/Stomach Ache Relief3%

“Upset my stomach so not for me”

Top return reasons

Functionality-Overall16%
Magnesium12%
Flavor11%
Taste-Overall8%
Dosage7%
Value For Money6%
Sleep Quality6%
Acid Regulator/Stomach Ache Relief6%
Size-Overall3%
Leak-Proof3%

Common questions

Is calm magnesium glycinate profitable to sell on Amazon United States?
The niche generates $170K/yr across 14 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -3.0%. Flapen's verdict: Skip it (47/100).
How competitive is the calm magnesium glycinate niche?
3 brands and 569 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in calm magnesium glycinate?
Top complaints mined from reviews: Sleep Quality, Taste-Overall, Functionality-Overall. The return rate is 0.0%.
When does demand for calm magnesium glycinate peak?
Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the calm magnesium glycinate niche?
Listings span $16.25–$43.48; the average listing price is $25.14 (sweet spot $15–$100). The average incumbent carries 9,950 reviews — the moat a new listing must climb.