41
postbiotics
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Great$58.49avg listing price — sweet spot $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Conversion
Good5.1%search→purchase rate — share of searches ending in a sale
Price range
Good$20.60–$157.51cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$419K$419K/yr · 140K searches
Review moat
Okay2,414.8avg incumbent reviews — the moat a new listing must climb
Growth
Bad-41.5%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
Signals High Price