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d mannose powder
Skip itA concentrated shelf (top 5 take 90% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Incredible15.5%search→purchase rate — share of searches ending in a sale
Avg price
Great£17.22avg listing price — sweet spot $15–$100
Review moat
Great426.25avg incumbent reviews — the moat a new listing must climb
Price range
Good£8.35–£28.17cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Bad£90K£90K/yr · 34K searches
Growth
Bad-22.4%90-day search growth — must beat 0% to launch
Brand share
Bad95%top-5 brand share — brand-locked demand
Competition
Bad90%top-5 click share — a locked-up shelf
Signals Low Review Barrier