iron deficiency test kit
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.2%return rate — above 5% kills the launch gate
Quality gap
Incredible4.0★avg incumbent rating — lower means beatable quality
Conversion
Great9.4%search→purchase rate — share of searches ending in a sale
Review moat
Good509.5avg incumbent reviews — the moat a new listing must climb
Market size
Bad£67K£67K/yr · 116K searches
Avg price
Bad£6.08avg listing price — sweet spot $15–$100
Growth
Bad-17.6%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£4.91–£6.74cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, iron deficiency test kit is a £67K/yr Amazon United Kingdom market (116K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 37/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
iron deficiency test kit market data
- Units sold / yr
- 10K–13K
- avg 2,000–2,500/product
- Revenue / yr
- £61K–£76K
- units × avg price
- Conversion rate
- 9.4%
- Avg BSR
- #47
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 50 months
- Avg seller age
- 187 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 falling
Sellers
5
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- One Step75%
- Newfoundland17%
- Berkeley Health7%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 88 weeks — -17.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.7×
Top iron deficiency test kit search terms
- iron testing kit22K/yr
- ferritin testing kit12K/yr
- iron test12K/yr
- iron deficiency test14K/yr
- b12 test kit9K/yr
- iron test kit home uk6K/yr
- anemia home test kit6K/yr
- ferritin test4K/yr
- iron deficiency test at home5K/yr
- iron level test kit home uk4K/yr
Top iron deficiency test kit products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 4 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Anaemia Test Kit Iron Deficiency Ferritin Testing Blood Anemia Test One Step (1 Test)
One Step£4.914.0★1,415 rev
Newfoundland Iron Levels Test Kit - Anaemia Detection & Iron Deficiency - 99% Accurate Home Test for Iron Levels - Hemoglobin & Red Blood Cell Testing - CE Certified - 1pc Anaemia Test Kit
Newfoundland£6.013.8★175 rev
Anaemia Test Kit Iron Deficiency Ferritin Testing Blood Anemia Test One Step (2 Tests)
One Step£6.664.1★374 rev
Ferritin Rapid Test Cassette by Berkeley Health (Easy Check) - Iron Level Self Test for Home Use Clear Results in Minutes - 1 Pack
Berkeley Health£6.744.0★74 rev
Newest
by launch dateFerritin Rapid Test Cassette by Berkeley Health (Easy Check) - Iron Level Self Test for Home Use Clear Results in Minutes - 1 Pack
Berkeley Health£6.7474 rev
Newfoundland Iron Levels Test Kit - Anaemia Detection & Iron Deficiency - 99% Accurate Home Test for Iron Levels - Hemoglobin & Red Blood Cell Testing - CE Certified - 1pc Anaemia Test Kit
Newfoundland£6.01175 rev
Anaemia Test Kit Iron Deficiency Ferritin Testing Blood Anemia Test One Step (1 Test)
One Step£4.911,415 rev
Anaemia Test Kit Iron Deficiency Ferritin Testing Blood Anemia Test One Step (2 Tests)
One Step£6.66374 rev
Trending
90-day click momentumAnaemia Test Kit Iron Deficiency Ferritin Testing Blood Anemia Test One Step (2 Tests)
One Step£6.664.1★
Anaemia Test Kit Iron Deficiency Ferritin Testing Blood Anemia Test One Step (1 Test)
One Step£4.914.0★
Newfoundland Iron Levels Test Kit - Anaemia Detection & Iron Deficiency - 99% Accurate Home Test for Iron Levels - Hemoglobin & Red Blood Cell Testing - CE Certified - 1pc Anaemia Test Kit
Newfoundland£6.013.8★
Ferritin Rapid Test Cassette by Berkeley Health (Easy Check) - Iron Level Self Test for Home Use Clear Results in Minutes - 1 Pack
Berkeley Health£6.744.0★
What buyers say about iron deficiency test kit
What buyers praise and complain about, mined from review topics.What buyers love
“was easy to read”
“Accurate”
“came with clear instructions”
“Partially successful”
“Worked great and a much sharper lancet than one of the alternative brands I bought before”
“showing iron stores as good”
“quality is good”
“Compact, well packaged and handy for extra reassurance”
“This anemia test kit was extremely useful”
“I would definitely recommend this due to its price and user-friendliness”
What buyers complain about
“Not accurate results”
“Didnt work”
“Instructions could be better”
“So inaccurate and not trustworthy”
“Waste of money”
“Very misleading”
“I do not know HOW this was ever given a CE certificate”
“my iron was low”
“Blood and solution just leaked up into the results bit even though I followed all instructions”
“this test shows me as anaemic too”
Top return reasons
Common questions
- Is iron deficiency test kit profitable to sell on Amazon United Kingdom?
- The niche generates £67K/yr across 4 tracked products. 90-day search growth is -17.6%. Flapen's verdict: Skip it (37/100).
- How competitive is the iron deficiency test kit niche?
- 3 brands and 5 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in iron deficiency test kit?
- Top complaints mined from reviews: Accuracy-Overall, Functionality-Overall, Instructions/User Manual/Troubleshooting. The return rate is 0.2%.
- When does demand for iron deficiency test kit peak?
- Demand is steady year-round — the busiest month runs 1.7× the quietest.
- What does it cost to enter the iron deficiency test kit niche?
- Listings span £4.91–£6.74; the average listing price is £6.08 (sweet spot $15–$100). The average incumbent carries 510 reviews — the moat a new listing must climb.