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vitamin d
Skip itPrices mostly outside the sweet spot ($2.63–$8.40) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Incredible16.0%search→purchase rate — share of searches ending in a sale
Market size
Incredible£3.1M£3.1M/yr · 3.3M searches
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Brand share
Bad92%top-5 brand share — brand-locked demand
Review moat
Bad12,404.63avg incumbent reviews — the moat a new listing must climb
Avg price
Bad£5.88avg listing price — sweet spot $15–$100
Growth
Bad-31.9%90-day search growth — must beat 0% to launch
Price range
Bad£2.63–£8.40cheapest to priciest tracked listing — scored on the share inside $15–$100