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hydrogen peroxide mouthwash
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible21.5%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Market size
Great£1.1M£1.1M/yr · 603K searches
Avg price
Bad£8.77avg listing price — sweet spot $15–$100
Review moat
Bad19,425avg incumbent reviews — the moat a new listing must climb
Growth
Bad-18.6%90-day search growth — must beat 0% to launch
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Price range
Bad£3.84–£12.38cheapest to priciest tracked listing — scored on the share inside $15–$100