metformin
Skip itBrand-locked demand (top 5 brands take 93% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Avg price
Incredible€29.22avg listing price — sweet spot $15–$100
Price range
Great€12.57–€98.76cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Review moat
Good1,374.91avg incumbent reviews — the moat a new listing must climb
Conversion
Okay3.8%search→purchase rate — share of searches ending in a sale
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Growth
Okay+4.3%90-day search growth — must beat 0% to launch
Market size
Bad€81K€81K/yr · 73K searches
Brand share
Bad93%top-5 brand share — brand-locked demand
According to Flapen's Amazon Germany niche tracking, metformin is a €81K/yr Amazon Germany market (73K searches/yr). The top 5 brands hold 93% of demand. Verdict: Skip it — 49/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
metformin market data
- Units sold / yr
- 2K–3K
- avg 0–100/product
- Revenue / yr
- €58K–€73K
- units × avg price
- Conversion rate
- 3.8%
- Avg BSR
- #256
- Page quality
- 0%
- Prime
- 86%
- Sponsored
- 86%
- Out of stock
- 0.0%
- Avg brand age
- 50 months
- Avg seller age
- 180 days
Competition & brand share
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.Brands
9 falling
Sellers
30
Top-5 brand share
93%
Top 20: 100%
Top-5 click share
59%
Top 20: 99%
Open market
4%
- Glycowohl57%
- Longevity Box19%
- Hivital Foods8%
- BANDINI5%
- WeightWorld4%
- Zenement3%
- Open — no brand owns it (3 brands, 4%)
Demand & seasonality
Weekly Amazon search volume, last 79 weeks — +4.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top metformin search terms
- glycowohl25K/yr
- metformin28K/yr
- metformin 1000mg tabletten8K/yr
- glycowohl tropfen bei diabetes3K/yr
- metformin 500mg4K/yr
- glycowohl tropfen3K/yr
- metformin tabletten1K/yr
Top metformin 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.
All 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Longevity Box Met4Min 120 Kapseln | 60.000mg Blutzucker-Komplex mit Berberin Chrom NAC & Myo-Inositol | Unterstützt Glukose-Stoffwechsel & Insulinsensitivität
Longevity Box€21.494.1★130 rev
GLYCOWOHL Herbal Drops for Diabetes and Blood Sugar Control 50 ml Lösung
Glycowohl€35.504.1★546 rev
Glycowohl Eisen-Komplex duodenal 40 mg Eisen + Vitamin C 90 Kapseln
Glycowohl€22.894.5★164 rev
GLYCOWOHL Herbal Drops for Diabetes and Blood Sugar Control 100 ml Lösung
Glycowohl€59.244.1★546 rev
Berberin 1000 mg. 120 vegane Kapseln für für 2 Monate Behandlung. Natürlicher Extrakt aus Berberis Vulgaris mit Chrom und schwarzem Pfeffer. Hergestellt von HIVITAL
Hivital Foods€20.674.4★3,957 rev
Newest
by launch date
Glycowohl Blutzucker Balance mit Maulbeerblattextrakt (Reducose)
Glycowohl€27.7332 rev
Glycowohl Augen Komplex Plus Augenvitamine Mit Lutein & Zeaxanthin
Glycowohl€29.1348 rev
Glycowohl Vitamin D3 + K2 Tropfen 1000 I.E. mit K2Vital & Vitamin E
Glycowohl€15.1338 rev
![DocVital Blutzucker Komplex [120 Kapseln] hochdosiert Unterstützung vom normalen Blutzuckerspiegel* & bei Insulinresistenz Vegan mit u.a. Ceylon Zimt Chrom - deutsches Qualitätsprodukt](https://m.media-amazon.com/images/I/419f3Cbj3kL.jpg)
DocVital Blutzucker Komplex [120 Kapseln] hochdosiert Unterstützung vom normalen Blutzuckerspiegel* & bei Insulinresistenz Vegan mit u.a. Ceylon Zimt Chrom - deutsches Qualitätsprodukt
DocVital€27.1789 rev
Glycowohl Vitamin B1 400 mg pro Tagesdosis 200 Kapseln
Glycowohl€29.40115 rev
Trending
90-day click momentumGLYCOWOHL Herbal Drops for Diabetes and Blood Sugar Control 50 ml Lösung
Glycowohl€35.504.1★
Glycowohl Blutzucker Balance mit Maulbeerblattextrakt (Reducose)
Glycowohl€27.734.2★
Glycowohl Extra Blutzucker Komplex mit Chrom OPC & Maulbeerblattextrakt
Glycowohl€45.384.5★
Berberin Kapseln - 4 Monate Vorrat - 120 vegane Berberin 500 mg Kapseln - Berberin 85% (Quelle: Berberis aristata) - 1 Kapsel pro Tag - Frei von Magnesiumstearat - Von WeightWorld
WeightWorld€16.634.4★
Longevity Box Met4Min 120 Kapseln | 60.000mg Blutzucker-Komplex mit Berberin Chrom NAC & Myo-Inositol | Unterstützt Glukose-Stoffwechsel & Insulinsensitivität
Longevity Box€21.494.1★
What buyers say about metformin
What buyers praise and complain about, mined from review topics.What buyers love
“Beste Produkt”
“Gute Lösung, wenn man hohe Vitamin C-Quellen sucht”
“Glycowohl Blutzucker Balance”
“Value dor money”
“Praktisch und schmeckt”
“Perfekte Wirkung”
“Besser als erwartet”
“fairer Dosierung”
“Ich bin zufrieden mit diesem Produkt,hilft mir für weniger Appetit und damit beim abnehmen”
“Top Produkt”
What buyers complain about
“Null Wirkung”
“Zu niedrig dosiert”
“Was die Wirkung angeht, bin ich unsicher”
“Geldverschwendung”
“schlecht gepresst, extreme Magenreizung”
“Diabetik”
“Ich habe über die Jahre stetig an Gewicht zugenommen”
“Ich habe zu wenig Eisen und sollte es durch meine Ernährung und Tabletten zuführen”
“Müll”
“Sind die B Vitamine im Vergleich zu anderen Herstellern nicht zu hoch dosiert?”
Top return reasons
Common questions
- Is metformin profitable to sell on Amazon Germany?
- The niche generates €81K/yr across 22 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is +4.3%. Flapen's verdict: Skip it (49/100).
- How competitive is the metformin niche?
- 9 brands and 30 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 93% of demand.
- What do buyers complain about in metformin?
- Top complaints mined from reviews: Funktionalität insgesamt, Dosierung, Nebenwirkungen. The return rate is 0.1%.
- When does demand for metformin peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the metformin niche?
- Listings span €12.57–€98.76; the average listing price is €29.22 (sweet spot $15–$100). The average incumbent carries 1,375 reviews — the moat a new listing must climb.