reacted iron
Skip itA concentrated shelf (top 5 take 97% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible$26.53avg listing price — sweet spot $15–$100
Price range
Incredible$14.79–$53.68cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Great11.3%search→purchase rate — share of searches ending in a sale
Market size
Good$479K$479K/yr · 159K searches
Growth
Okay+5.4%90-day search growth — must beat 0% to launch
Review moat
Bad10,227.83avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Brand share
Bad97%top-5 brand share — brand-locked demand
Competition
Bad97%top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, reacted iron is a $479K/yr Amazon United States market (159K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Jul–Aug–Sep–Oct–Nov. Verdict: Skip it — 46/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
reacted iron market data
- Units sold / yr
- 15K–20K
- avg 1,500–2,000/product
- Revenue / yr
- $398K–$531K
- units × avg price
- Conversion rate
- 11.3%
- Avg BSR
- #542
- Page quality
- 0%
- Prime
- 83%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 82 months
- Avg seller age
- 160 days
Competition & brand share
The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack.Brands
6 falling
Sellers
26
Top-5 brand share
97%
Top 20: 100%
Top-5 click share
97%
Top 20: 100%
Open market
0%
- Designs for Health49%
- Ortho Molecular Products34%
- Jkrova5%
- THORNE5%
- Nutricost4%
- Pure Encapsulations3%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 72 weeks — +5.4% search growth over the last 90 days.Peak months: Jul, Aug, Sep, Oct, Nov · busiest ÷ quietest = 7.2×
Top reacted iron search terms
- reacted magnesium44K/yr
- ferrochel25K/yr
- reacted magnesium ortho molecular20K/yr
- reacted iron13K/yr
- ferrochel iron13K/yr
- ortho molecular reacted magnesium15K/yr
- orthomolecular reacted magnesium6K/yr
- ferrochel iron chelate5K/yr
- reacted iron ortho molecular5K/yr
- reactive magnesium4K/yr
Top reacted iron 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 6 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Designs for Health Iron Vital for Energy Production Immune & Brain Health High Absorption Ferrochel Chelated Iron for Women & Men as Ferrous Bisglycinate Chelate Pregnancy Safe (120 Vegan Caps)
Designs for Health$21.884.7★2,032 rev

Ortho Molecular Reacted Magnesium - 60 Capsules
Ortho Molecular Products$53.684.8★44 rev

Reacted Magnesium & Potassium - High Absorption Magnesium Supplement with Magnesium Citrate Glycinate Malate - Supports Sleep Muscles Heart Health - 100 Capsules
Jkrova$27.104.7★8 rev

THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings
THORNE$15.644.7★8,578 rev

Nutricost Chelated Iron As Ferrochel 36mg 240 Capsules
Nutricost$14.794.7★736 rev
Newest
by launch date
Ortho Molecular Reacted Magnesium - 60 Capsules
Ortho Molecular Products$53.6844 rev

Reacted Magnesium & Potassium - High Absorption Magnesium Supplement with Magnesium Citrate Glycinate Malate - Supports Sleep Muscles Heart Health - 100 Capsules
Jkrova$27.108 rev

Nutricost Chelated Iron As Ferrochel 36mg 240 Capsules
Nutricost$14.79736 rev

THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings
THORNE$15.648,578 rev

Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief Sleep Heart Health Nerves Muscles and Metabolism* - with Magnesium Glycinate - 90 Capsules
Pure Encapsulations$26.1049,969 rev
Trending
90-day click momentum
Reacted Magnesium & Potassium - High Absorption Magnesium Supplement with Magnesium Citrate Glycinate Malate - Supports Sleep Muscles Heart Health - 100 Capsules
Jkrova$27.104.7★

Nutricost Chelated Iron As Ferrochel 36mg 240 Capsules
Nutricost$14.794.7★

Ortho Molecular Reacted Magnesium - 60 Capsules
Ortho Molecular Products$53.684.8★

THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings
THORNE$15.644.7★

Designs for Health Iron Vital for Energy Production Immune & Brain Health High Absorption Ferrochel Chelated Iron for Women & Men as Ferrous Bisglycinate Chelate Pregnancy Safe (120 Vegan Caps)
Designs for Health$21.884.7★
What buyers say about reacted iron
What buyers praise and complain about, mined from review topics.What buyers love
“Best quality”
“Help with sleep”
“Best magnesium supplement Ive had yet”
“Great Iron Supplement”
“Favorite vitamin”
“No stomach problems”
“Good for constipation”
“As advertised”
“The first bottle worked well”
“less stress”
What buyers complain about
“I still cannot go to sleep”
“My iron level in my blood work was low”
“Most cause stomach upset”
“Bad Side effects”
“in my case it just didnt stand out as particularly effective”
“High dose”
“I must not be able to tolerate magnesium”
“Poor quality control”
“The capsule is small”
“Gave me digestive issues”
Top return reasons
Common questions
- Is reacted iron profitable to sell on Amazon United States?
- The niche generates $479K/yr across 6 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +5.4%. Flapen's verdict: Skip it (46/100).
- How competitive is the reacted iron niche?
- 6 brands and 26 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 97% of demand.
- What do buyers complain about in reacted iron?
- Top complaints mined from reviews: Sleep Quality, Iron, Acid Regulator/Stomach Ache Relief. The return rate is 0.0%.
- When does demand for reacted iron peak?
- Demand peaks in Jul–Aug–Sep–Oct–Nov; the busiest month runs 7.2× the quietest.
- What does it cost to enter the reacted iron niche?
- Listings span $14.79–$53.68; the average listing price is $26.53 (sweet spot $15–$100). The average incumbent carries 10,228 reviews — the moat a new listing must climb.