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55

glycin

Worth a look

Shows low returns (0.0%), but soft demand (-5.9% this quarter) keeps it on the watch list.

Market size 76Growth 22Conversion 96Competition 23Returns 100Price range 46Avg price 76Brand share 50Review moat 74Quality gap 23

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Conversion

Incredible14.2%

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

Market size

Great€922K

€922K/yr · 427K searches

Avg price

Great€15.26

avg listing price — sweet spot $15–$100

Review moat

Good550.85

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay75%

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

Price range

Okay€9.06–€20.16

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

Competition

Bad73%

top-5 click share — a locked-up shelf

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-5.9%

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

Competition

The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 falling

Sellers

12

Top-5 brand share

75%

Open market

18%

  • ProFuel26%
  • Vegavero20%
  • lalea12%
  • GREEN NATURALS10%
  • Vit4ever8%
  • Bloom Naturals Beauty Supplements7%

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%€92K20%€184K30%€276K40%€369K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -5.9% search growth over the last 90 days.
13K8KSpike '24Black Friday '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Mar, Apr · busiest ÷ quietest = 2.2×

Reviews

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

What buyers love

Schlafqualität16%

“Bestes Glycin ohne Zusätze für tieferen Schlaf”

Qualität insgesamt16%

“Super Produkt”

Süße7%

“natürliche Süße –”

Löslichkeit7%

“Lässt sich leicht in Wasser, Tee oder Smoothies einrühren”

Geschmack insgesamt6%

“Lecker 😋 Schmeckt hervorragend”

Preis-Leistungs-Verhältnis6%

“fairer Preis”

Inhaltsstoffe – insgesamt4%

“Top Produkte”

Benutzerfreundlichkeit3%

“löst sich gut auf”

Geschmack3%

“guter geschmack”

Ernährungs Gehalt2%

“Es ist somit die perfekte Ergänzung für Wasser, Tee, Kaffee oder Proteinshakes”

What buyers complain about

Süße10%

“Nicht so süß”

Geschmack insgesamt7%

“Schmeckt schre”

Dosierung6%

“10mg ist schon sehr hoch”

beworben Vs Tatsächliches Produkt5%

“Nicht 100% Glycin”

Inhaltsstoffe – insgesamt4%

“Nicht 100% Glycin”

Schlafqualität3%

“Wollte damit meinen Schlaf verbessen aber exakt null Wirkung (Leider)”

Künstliche Süßstoffe3%

“Als Süßungsmittel nicht geeignet”

Geschmack3%

“Wenig Eigengeschmack”

Gesamtgröße2%

“große Kapseln”

Geruch2%

“Da hat die Dose beim Öffnen schon übel gerochen”