Heme Iron
Launch itA $884K/yr market growing +7.7% this quarter with returns at 0.0% — clears our launch bar.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible$32.98avg listing price — sweet spot $15–$100
Price range
Great$13.80–$87.14cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Great$884K$884K/yr · 401K searches
Conversion
Good6.7%search→purchase rate — share of searches ending in a sale
Review moat
Okay2,068.44avg incumbent reviews — the moat a new listing must climb
Competition
Okay61%top-5 click share — leaders hold, buyers still browse
Growth
Okay+7.7%90-day search growth — must beat 0% to launch
Brand share
Okay84%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Is heme iron profitable on Amazon?
According to Flapen's Amazon United States niche tracking, heme iron is a $884K/yr Amazon United States market (401K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in May–Jun. Verdict: Launch it — 58/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
heme iron market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 30K–40K
- avg 1,500–2,000/product
- Revenue / yr
- $989K–$1.3M
- units × avg price
- Conversion rate
- 6.7%
- Avg BSR
- #220
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 100%
- Out of stock
- 0.9%
- Avg brand age
- 75 months
- Avg seller age
- 165 days
Competition: brands, sellers & click share
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.Brands
12 flat
Sellers
37
Top-5 brand share
84%
Top 20: 100%
Top-5 click share
61%
Top 20: 100%
Open market
13%
- Three Arrows37%
- Proferrin34%
- THORNE5%
- HEME BOOST5%
- Pharmvista3%
- NaturesPlus3%
- Open — no brand owns it (6 brands, 13%)
heme iron demand & seasonality
Weekly Amazon search volume, last 104 weeks — +7.7% search growth over the last 90 days.Peak months: May, Jun · busiest ÷ quietest = 2.0×
Top heme iron search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- heme iron113K/yr
- heme iron polypeptide49K/yr
- heme iron supplement77K/yr
- proferrin36K/yr
- three arrows iron repair30K/yr
- three arrows iron14K/yr
- proferrin heme iron5K/yr
- heme iron supplement for women9K/yr
- three arrows heme iron6K/yr
- heme8K/yr
Top heme iron products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Iron Repair Simply Natural Iron Supplement for Women Men Teens 90 Capsules
Three Arrows$29.844.4★1,393 rev
Proferrin ES- 10.5mg of high Absorbing Heme Iron Polypeptide. Made in the USA. 90 Tablets. Easy on the Gut. Not affected by Coffee Calcium or PPIs.
Proferrin$55.654.5★1,289 rev
Iron Repair Plus Natural Iron Supplement Methyl B-12 & Folate 90 Capsules
Three Arrows$29.964.7★1,053 rev
Proferrin Clear 30ct | US Made heme Iron for high Absorption Easy on GI Tract | Natural NSF Certified dye Free
Proferrin$16.874.4★837 rev
Proferrin ES- 10.5mg of high Absorbing Heme Iron Polypeptide. Made in the USA. 30 Tablets. Easy on the Gut. Not affected by Coffee Calcium or PPIs.
Proferrin$23.494.5★1,289 rev
Newest
by launch date
Promix Nutrition Heme Iron Supplement for Anemia Support - 90 Count
ProMix Nutrition$36.64151 rev
Natural Flow 2X Iron Complex 28 mg 60 Capsules
Natural Flow Supplements$23.0930 rev
SiderAL Forte Sucrosomial Iron Supplement for Women and Men - Clinically Proven to Increase Levels without Side Effects Gentle on Stomach 7x Higher Absorption for Anemia & Energy Vitamin C 30ct
PHARMANUTRA$87.141,560 rev
Proferrin Clear Heme Iron Supplement 90 Capsules- Superior Absorption Easy on The Gut Natural Made in The US
Proferrin$45.40837 rev
Iron Repair Simply Natural Iron Supplement for Women Men Teens 90 Capsules
Three Arrows$29.841,393 rev
Trending
90-day click momentumNatural Flow 2X Iron Complex 28 mg 60 Capsules
Natural Flow Supplements$23.094.6★
Hemeboost 11.6mg (232mg Heme Iron Pills) High Potency Iron Supplement for Women & Men High Absorption & Gentle on Stomach Safe for Use in Pregnancy 60 Tablets
HEME BOOST$35.094.6★
Proferrin Clear 30ct | US Made heme Iron for high Absorption Easy on GI Tract | Natural NSF Certified dye Free
Proferrin$16.874.4★
Proferrin ES- 10.5mg of high Absorbing Heme Iron Polypeptide. Made in the USA. 90 Tablets. Easy on the Gut. Not affected by Coffee Calcium or PPIs.
Proferrin$55.654.5★
Pharmvista Heme Iron Polypeptide Softgels - with Vitamin C & Folic Acid - Gluten Free Non-GMO - 60 Count
Pharmvista$16.914.5★
What reviews say buyers love and hate about heme iron
What buyers praise and complain about, mined from review topics.What buyers love
“Great Iron Supplement”
“Best quality”
“Good for your stomach”
“Easy to digest”
“No side effects”
“Really does work”
“Helped increase my energy level”
“I also take their vitamin D complex that works great as well”
“easy to ingest”
“As advertised”
What buyers complain about
“My iron levels are low”
“Horrible stomach pain”
“Horrible side effects”
“Too expensive”
“Terrible constipation”
“Bad ingredients”
“I wasn't compliant with it on a daily or bi-daily basis”
“Didn't work for me”
“Slight after-taste”
“Skin irritation”
Top return reasons
Common heme iron questions
- Is heme iron profitable to sell on Amazon United States?
- The niche generates $884K/yr across 18 tracked products. 90-day search growth is +7.7%. Flapen's verdict: Launch it (58/100).
- How competitive is the heme iron niche?
- 12 brands and 37 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 84% of demand.
- What do buyers complain about in heme iron?
- Top complaints mined from reviews: Iron, Acid Regulator/Stomach Ache Relief, Side Effects. The return rate is 0.0%.
- When does demand for heme iron peak?
- Demand peaks in May–Jun; the busiest month runs 2.0× the quietest.
- What does it cost to enter the heme iron niche?
- Listings span $13.80–$87.14; the average listing price is $32.98 (sweet spot $15–$100). The average incumbent carries 2,068 reviews — the moat a new listing must climb.