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black nail polish
Skip itPrices mostly outside the sweet spot ($1.34–$11.30) — this niche doesn't clear our bar today.
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Conversion
Great11.5%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Market size
Good$494K$494K/yr · 808K searches
Growth
Okay+7.2%90-day search growth — must beat 0% to launch
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Competition
Bad74%top-5 click share — a locked-up shelf
Avg price
Bad$5.33avg listing price — sweet spot $15–$100
Review moat
Bad24,572.83avg incumbent reviews — the moat a new listing must climb
Price range
Bad$1.34–$11.30cheapest to priciest tracked listing — scored on the share inside $15–$100