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51

zma

Worth a look

Shows low returns (0.1%), but soft demand (-17.9% this quarter) keeps it on the watch list.

Market size 23Growth 16Conversion 81Competition 38Returns 100Price range 70Avg price 83Brand share 67Review moat 49Quality gap 47

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Avg price

Great€18.04

avg listing price — sweet spot $15–$100

Conversion

Great8.5%

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

Price range

Good€6.14–€35.25

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

Brand share

Good65%

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

Review moat

Okay1,581.35

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Okay62%

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

Market size

Bad€93K

€93K/yr · 61K searches

Growth

Bad-17.9%

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

Competition

The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.

Brands

16 rising

Sellers

30

Top-5 brand share

65%

Open market

28%

  • EXVital23%
  • Yamamoto Nutrition16%
  • WeightWorld11%
  • Zec+8%
  • OLIMP SPORT NUTRITION8%
  • Iron Labs Nutrition7%

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%€9K20%€19K30%€28K40%€37K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 20 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -17.9% search growth over the last 90 days.
3K2KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Mar · busiest ÷ quietest = 1.7×

Reviews

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

What buyers love

Magnesium25%

“Bestes Magnesium ever”

Qualität insgesamt24%

“Super Produkt”

Preis-Leistungs-Verhältnis7%

“Preis Leistung super”

Schlafqualität5%

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

beworben Vs Tatsächliches Produkt4%

“Hält 100% was es verspricht”

Linderung von Muskelschmerzen4%

“Sehr gut verträglich, hochwertige Inhaltsstoffe und spürbar positive Wirkung auf Muskeln und Regeneration”

Vitamin3%

“Essentielle Vitamine”

Effizienz2%

“Wirkt”

Ernährungs Gehalt2%

“Super Suppliement”

Dosierung2%

“Hoch dosiert”

What buyers complain about

Magnesium15%

“Magnesium halt”

Säureregulator/Linderung von Magenschmerzen6%

“Durchfall”

Dosierung6%

“Scheinbar hoher Anteil an (billigem) MG Oxid.”

Einfaches Kauen/Schlucken5%

“Nicht gut zum schlucken”

Preis-Leistungs-Verhältnis5%

“Expensive”

Nebenwirkungen4%

“Nebenwirkungen”

Gesamtgröße4%

“Sind groß”

Reguliert die Verdauung4%

“Darmprobleme”

Funktionalität insgesamt4%

“Wirkt bei mir nicht”

Geruch3%

“Stinkt richtige ekelhaft”