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magnesium komplex 10 in 1

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A small market ($38K/yr) — this niche doesn't clear our bar today.

Market size 9Growth 18Conversion 52Competition 16Returns 100Price range 64Avg price 84Brand share 40Review moat 35Quality gap 27

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Avg price

Great€18.68

avg listing price — sweet spot $15–$100

Price range

Good€10.17–€23.49

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

Conversion

Good4.3%

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

Brand share

Okay81%

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

Review moat

Okay3,009.89

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-13.8%

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

Competition

Bad81%

top-5 click share — a locked-up shelf

Market size

Bad€38K

€38K/yr · 48K searches

Competition

The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9

Sellers

9

Top-5 brand share

81%

Open market

13%

  • Swiyie34%
  • Vit4ever15%
  • VitalVibe13%
  • SUNDAY NATURAL13%
  • ProFuel7%
  • natural elements6%
  • Open — no brand owns it (3 brands, 13%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%€4K20%€8K30%€11K40%€15K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 9 tracked products in this niche — three views at once, no toggling.

Demand

Weekly Amazon search volume, last 14 weeks — -13.8% search growth over the last 90 days.
4K3KApr '26Apr '26May '26May '26May '26Jun '26Jun '26

Reviews

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

What buyers love

Magnesium27%

“Bestes Magnesium ever”

Qualität insgesamt24%

“Good produckt”

Preis-Leistungs-Verhältnis7%

“Bester preis”

beworben Vs Tatsächliches Produkt5%

“Hält 100% was es verspricht”

Schlafqualität5%

“und bin überrascht dass ich nun wieder besser Schlafen kann ohne Melatonin einnehmen zu müssen.”

Linderung von Muskelschmerzen4%

“Zur Muskelregneration”

Dosierung2%

“Gute Qualität und Dosierung”

Vitamin2%

“Super Supplement”

Einfaches Kauen/Schlucken2%

“Tabletten sind gut einzunehmen”

Effizienz2%

“Wirkt”

What buyers complain about

Magnesium19%

“Fehlendes Magnesium”

Dosierung7%

“Fake Dosierung”

Säureregulator/Linderung von Magenschmerzen6%

“Durchfall”

Funktionalität insgesamt5%

“Wirkt bei mir nicht”

Linderung von Muskelschmerzen4%

“Ich als Sportler habe wirklich Probleme mit wadenkrämpfe”

Gesamtgröße4%

“Sind groß”

beworben Vs Tatsächliches Produkt4%

“Irreführend”

Nebenwirkungen3%

“Wirkung fraglich”

Geschmack insgesamt3%

“Schmeckt irgendwie schimmelig🤮”

Geruch3%

“Es stinkt sogar,ich werde es nicht nicht weiter benutzen”

Top return reasons

Gesamtgröße22%
Funktionalität insgesamt22%
beworben Vs Tatsächliches Produkt11%
Reguliert die Verdauung11%
Kompatibilität – insgesamt11%
Qualität insgesamt11%
Geschmack11%