Skip to content
57

Magnesium Spray

Worth a look

Shows low returns (0.3%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 97Growth 12Conversion 82Competition 25Returns 99Price range 75Avg price 70Brand share 34Review moat 22Quality gap 72

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Market size

Incredible$4.4M

$4.4M/yr · 3.5M searches

Conversion

Great8.6%

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

Price range

Great$8.75–$34.39

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

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Avg price

Good$14.37

avg listing price — sweet spot $15–$100

Brand share

Okay85%

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

Competition

Bad70%

top-5 click share — a locked-up shelf

Review moat

Bad8,678.06

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-25.4%

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

Is magnesium spray profitable on Amazon?

According to Flapen's Amazon United States niche tracking, magnesium spray is a $4.4M/yr Amazon United States market (3.5M searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Aug–Oct. Verdict: Worth a look — 57/100.

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

magnesium spray market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.
Units sold / yr
250K–300K
avg 25,000–30,000/product
Revenue / yr
$3.6M–$4.3M
units × avg price
Conversion rate
8.6%
Avg BSR
#427
Page quality
0%
Prime
100%
Sponsored
88%
Out of stock
0.0%
Avg brand age
49 months
Avg seller age
147 days

Competition: brands, sellers & click share

The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.

Brands

12 rising

Sellers

577

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

70%

Top 20: 100%

Open market

11%

  • Seven Minerals27%
  • Essentially Based25%
  • Dr Teal's13%
  • Ancient Minerals11%
  • WHLH & WELL-BEING8%
  • LIFE-FLO4%
  • Open — no brand owns it (6 brands, 11%)

magnesium spray demand & seasonality

Weekly Amazon search volume, last 104 weeks — -25.4% search growth over the last 90 days.
125K75KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Aug, Oct · busiest ÷ quietest = 2.1×

Top magnesium spray search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.
  • magnesium spray822K/yr
  • magnesium oil660K/yr
  • magnesium oil spray207K/yr
  • magnesium spray for feet199K/yr
  • magnesium spray for sleep137K/yr
  • magnesium oil for feet620K/yr
  • dr teals magnesium spray235K/yr
  • pure magnesium oil spray96K/yr
  • magnesium spray for pain87K/yr
  • magnesium chloride spray27K/yr
All search terms

Top magnesium spray 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%$438K20%$876K30%$1.3M40%$1.8M101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

What reviews say buyers love and hate about magnesium spray

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

What buyers love

Smell16%

“Light scent”

Quality-Overall11%

“Decent enough product”

Efficiency10%

“Surprisingly effective”

Sleep Quality8%

“Help with sleep”

Magnesium6%

“Literally the BEST magnesium supplements I have ever used”

Muscle Pain Relief5%

“Great for sore muscles”

Value For Money4%

“Reasonably priced”

Joint Pain4%

“It works great for joint pain”

Soft Feel3%

“soft”

Advertised Vs Actual Product3%

“As advertised”

What buyers complain about

Functionality-Overall15%

“Did not work”

Allergies10%

“Skin Irritation”

Adhesion/Stickiness6%

“Left me with a sticky feeling”

Moist/Dry5%

“Not hydrating”

Skin Health4%

“It will burn your skin”

Smell4%

“Scent does not last long”

Pain Relief-Overall4%

“Does not help with pain”

Sleep Quality3%

“Don't help with sleep”

Magnesium3%

“I have read that is a sign of magnesium deficiency”

Oily/Greasy3%

“Goes on oily”

Top return reasons

Functionality-Overall27%
Smell13%
Advertised Vs Actual Product11%
Adhesion/Stickiness7%
Leak-Proof6%
Size-Overall5%
Skin Health3%
Defective Material/Parts3%
Value For Money3%
Ingredients-Overall2%

Common magnesium spray questions

Is magnesium spray profitable to sell on Amazon United States?
The niche generates $4.4M/yr across 17 tracked products. 7 of 7 products launched in the last 360 days are still selling. 90-day search growth is -25.4%. Flapen's verdict: Worth a look (57/100).
How competitive is the magnesium spray niche?
12 brands and 577 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 85% of demand.
What do buyers complain about in magnesium spray?
Top complaints mined from reviews: Functionality-Overall, Allergies, Adhesion/Stickiness. The return rate is 0.3%.
When does demand for magnesium spray peak?
Demand peaks in Aug–Oct; the busiest month runs 2.1× the quietest.
What does it cost to enter the magnesium spray niche?
Listings span $8.75–$34.39; the average listing price is $14.37 (sweet spot $15–$100). The average incumbent carries 8,678 reviews — the moat a new listing must climb.