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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 5% 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

According to Flapen's Amazon Germany niche tracking, zma is a €93K/yr Amazon Germany market (61K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in Mar. Verdict: Worth a look — 51/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

zma market data

Units sold / yr
5K–6K
avg 100–250/product
Revenue / yr
€90K–€108K
units × avg price
Conversion rate
8.5%
Avg BSR
#449
Page quality
0%
Prime
95%
Sponsored
85%
Out of stock
3.7%
Avg brand age
63 months
Avg seller age
181 days

Competition & brand share

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%

Top 20: 100%

Top-5 click share

62%

Top 20: 100%

Open market

28%

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

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×

Top zma search terms

  • zma43K/yr
  • zma kapseln14K/yr
  • zma kapseln hochdosiert5K/yr
All search terms

Top zma 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%€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.

What buyers say about zma

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”

Common questions

Is zma profitable to sell on Amazon Germany?
The niche generates €93K/yr across 20 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -17.9%. Flapen's verdict: Worth a look (51/100).
How competitive is the zma niche?
16 brands and 30 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 65% of demand.
What do buyers complain about in zma?
Top complaints mined from reviews: Magnesium, Säureregulator/Linderung von Magenschmerzen, Dosierung. The return rate is 0.1%.
When does demand for zma peak?
Demand peaks in Mar; the busiest month runs 1.7× the quietest.
What does it cost to enter the zma niche?
Listings span €6.14–€35.25; the average listing price is €18.04 (sweet spot $15–$100). The average incumbent carries 1,581 reviews — the moat a new listing must climb.