47
spermidine
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
Review moat
Great139.14avg incumbent reviews — the moat a new listing must climb
Conversion
Great9.5%search→purchase rate — share of searches ending in a sale
Avg price
Great£16.77avg listing price — sweet spot $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Price range
Good£7.49–£30.80cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay90%top-5 brand share — brands hold most of the demand
Growth
Bad-12.5%90-day search growth — must beat 0% to launch
Market size
Bad£72K£72K/yr · 45K searches
Competition
Bad90%top-5 click share — a locked-up shelf
Signals Low Review Barrier