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copper supplement
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Review moat
Good818.8avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Good4.6%search→purchase rate — share of searches ending in a sale
Growth
Bad-1.3%90-day search growth — must beat 0% to launch
Avg price
Bad£7.07avg listing price — sweet spot $15–$100
Market size
Bad£64K£64K/yr · 195K searches
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Price range
Bad£4.23–£10.94cheapest to priciest tracked listing — scored on the share inside $15–$100