ferrous sulfate 325mg with vitamin c
Skip itA small market ($57K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible12.1%search→purchase rate — share of searches ending in a sale
Avg price
Good$12.99avg listing price — sweet spot $15–$100
Price range
Good$6.13–$25.51cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Growth
Okay+3.1%90-day search growth — must beat 0% to launch
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad11,323.89avg incumbent reviews — the moat a new listing must climb
Competition
Bad82%top-5 click share — a locked-up shelf
Market size
Bad$57K$57K/yr · 36K searches
According to Flapen's Amazon United States niche tracking, ferrous sulfate 325mg with vitamin c is a $57K/yr Amazon United States market (36K searches/yr). The top 5 brands hold 87% of demand. Verdict: Skip it — 40/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
ferrous sulfate 325mg with vitamin c market data
- Units sold / yr
- 4K–5K
- avg 250–500/product
- Revenue / yr
- $52K–$65K
- units × avg price
- Conversion rate
- 12.1%
- Avg BSR
- #83
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 89%
- Out of stock
- 0.0%
- Avg brand age
- 86 months
- Avg seller age
- 156 days
Competition & brand share
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 falling
Sellers
93
Top-5 brand share
87%
Top 20: 100%
Top-5 click share
82%
Top 20: 100%
Open market
8%
- Vitamatic58%
- Heivy9%
- THORNE8%
- NUTRAHARMONY7%
- Vitron-C5%
- P Puregen Labs5%
- Open — no brand owns it (2 brands, 8%)
Demand
Weekly Amazon search volume, last 20 weeks — +3.1% search growth over the last 90 days.Top ferrous sulfate 325mg with vitamin c search terms
- ferrous sulfate 325mg with vitamin c25K/yr
- ferrous sulfate with vitamin c6K/yr
- iron 325 mg with vitamin c4K/yr
Top ferrous sulfate 325mg with vitamin c 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 9 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Vitamatic Ferrous Sulfate 325 mg with Vitamin C 100 mg (65 mg Elemental Iron) Coated Tablets High Potency Iron Supplement No Artificial Colors Made in USA
Vitamatic$14.484.7★1,069 rev
Heivy Ferrous Sulfate 325mg with Vitamin C 100mg 240 Vegan Tablets
Heivy$8.934.6★341 rev
THORNE - Advanced Iron Complex - Complete Blood Support Formula* - Elemental Iron Folate B and C Vitamins for Optimal Absorption - Chelated Iron Supplement - Gluten Dairy & Soy-Free - 60 Capsules
THORNE$25.514.6★4,282 rev
Iron Supplement for Women - Iron 65mg (Ferrous Sulfate 325mg) - 60 Caps
NUTRAHARMONY$17.764.6★2,124 rev
Vitamatic Ferrous Gluconate 324 mg + Vitamin C 100 mg - No Artificial Color Additives - Gentle on Stomach - 250 Tablets - Made in USA
Vitamatic$9.994.6★523 rev
Newest
by launch dateHeivy Ferrous Sulfate 325mg with Vitamin C 100mg 240 Vegan Tablets
Heivy$8.93341 rev
Vitamatic Ferrous Gluconate 324 mg + Vitamin C 100 mg - No Artificial Color Additives - Gentle on Stomach - 250 Tablets - Made in USA
Vitamatic$9.99523 rev
Iron Supplement for Women - Iron 65mg (Ferrous Sulfate 325mg) - 60 Caps
NUTRAHARMONY$17.762,124 rev
Vitamatic Ferrous Sulfate 325 mg with Vitamin C 100 mg (65 mg Elemental Iron) Coated Tablets High Potency Iron Supplement No Artificial Colors Made in USA
Vitamatic$14.481,069 rev
Puregen Labs Ferrous Sulfate 325 mg (65 mg Elemental Iron) High Potency Iron Supplement | No Artificial Color Additives - 200 Tablets
P Puregen Labs$10.023,990 rev
Trending
90-day click momentumVitamatic Ferrous Gluconate 324 mg + Vitamin C 100 mg - No Artificial Color Additives - Gentle on Stomach - 250 Tablets - Made in USA
Vitamatic$9.994.6★
THORNE - Advanced Iron Complex - Complete Blood Support Formula* - Elemental Iron Folate B and C Vitamins for Optimal Absorption - Chelated Iron Supplement - Gluten Dairy & Soy-Free - 60 Capsules
THORNE$25.514.6★
Vitamatic Ferrous Sulfate 325 mg with Vitamin C 100 mg (65 mg Elemental Iron) Coated Tablets High Potency Iron Supplement No Artificial Colors Made in USA
Vitamatic$14.484.7★
Iron Supplement for Women - Iron 65mg (Ferrous Sulfate 325mg) - 60 Caps
NUTRAHARMONY$17.764.6★
Pure Encapsulations Iron-C - 15 mg - 175 mg Vitamin C - Red Blood Cell Support* - Energy Production - Highly Bioavailable Iron Pill - for Women & Men - Gluten Free & Vegan - 60 Capsules
Pure Encapsulations$13.434.7★
What buyers say about ferrous sulfate 325mg with vitamin c
What buyers praise and complain about, mined from review topics.What buyers love
“Great iron pills”
“Good quality arrived quickly”
“Good value for price”
“As advertised”
“Good quality vitamins”
“No upset stomach or constipation”
“DOES THE JOB”
“Give me Energy”
“Convenient to use”
“Easy to Swallow”
What buyers complain about
“I had very low iron levels”
“Horrible Taste”
“Hurt my stomach horribly”
“Made me extremely dizzy”
“My face has rash all over”
“Smell”
“Causes constipation”
“Expensive”
“False advertisement”
“These are the worse vitamins that Ive EVER taken”
Top return reasons
Common questions
- Is ferrous sulfate 325mg with vitamin c profitable to sell on Amazon United States?
- The niche generates $57K/yr across 9 tracked products. 90-day search growth is +3.1%. Flapen's verdict: Skip it (40/100).
- How competitive is the ferrous sulfate 325mg with vitamin c niche?
- 8 brands and 93 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 87% of demand.
- What do buyers complain about in ferrous sulfate 325mg with vitamin c?
- Top complaints mined from reviews: Iron, Taste-Overall, Acid Regulator/Stomach Ache Relief. The return rate is 0.0%.
- What does it cost to enter the ferrous sulfate 325mg with vitamin c niche?
- Listings span $6.13–$25.51; the average listing price is $12.99 (sweet spot $15–$100). The average incumbent carries 11,324 reviews — the moat a new listing must climb.