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vitamin d test kit
Skip itPrices mostly outside the sweet spot ($4.88–$8.48) — this niche doesn't clear our bar today.
Returns
Incredible0.2%return rate — above 5% kills the launch gate
Quality gap
Incredible3.8★avg incumbent rating — lower means beatable quality
Review moat
Great186.43avg incumbent reviews — the moat a new listing must climb
Conversion
Great8.4%search→purchase rate — share of searches ending in a sale
Avg price
Bad£6.34avg listing price — sweet spot $15–$100
Brand share
Bad97%top-5 brand share — brand-locked demand
Market size
Bad£21K£21K/yr · 39K searches
Competition
Bad93%top-5 click share — a locked-up shelf
Growth
Bad-41.3%90-day search growth — must beat 0% to launch
Price range
Bad£4.88–£8.48cheapest to priciest tracked listing — scored on the share inside $15–$100
Signals Quality Gap