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nail polish pens
Worth a lookShows beatable incumbent ratings (2.7★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Quality gap
Incredible2.7★avg incumbent rating — lower means beatable quality
Returns
Incredible0.9%return rate — above 5% kills the launch gate
Brand share
Great42%top-5 brand share — no brand owns this niche
Competition
Great31%top-5 click share — an open shelf
Review moat
Good555.19avg incumbent reviews — the moat a new listing must climb
Price range
Good£2.99–£31.99cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay£228K£228K/yr · 1.1M searches
Growth
Okay+3.0%90-day search growth — must beat 0% to launch
Conversion
Okay2.3%search→purchase rate — share of searches ending in a sale
Avg price
Okay£9.04avg listing price — sweet spot $15–$100