---
title: "Hemoglobin Supplements — $70K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/hemoglobin-supplements"
last_updated: "2026-08-12T08:06:03.595Z"
locale: en
meta:
description: "Amazon product research for hemoglobin supplements: $70K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for hemoglobin supplements: $70K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Hemoglobin Supplements — $70K/mo Amazon US Product Research"
---
# **Hemoglobin Supplements**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 74Growth 25Conversion 95Competition 15Returns 100Price range 80Avg price 86Brand share 0Review moat 25Quality gap 23
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.3%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$19.48**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$12.31–$26.74**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$838K**
$838K/yr · 351K searches
**Growth**
**Okay****+0.1%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****4,239.42**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****83%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
## **Is hemoglobin supplements profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, hemoglobin supplements is a $838K/yr Amazon United States market (351K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug–Oct. Verdict: Skip it — 48/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **hemoglobin supplements market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **40K–50K**
- avg 6,000–8,000/product
- **Revenue / yr**
- **$779K–$974K**
- units × avg price
- **Conversion rate**
- **12.3%**
- **Avg BSR**
- **#129**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **58%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **77 months**
- **Avg seller age**
- **157 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▲rising
**Sellers**
**562**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**83%**
Top 20: 100%
**Open market**
**0%**
- NaturesPlus71% - Feroglobin23% - Floradix2% - Vitabiotics2% - Nature's Plus2%
## **hemoglobin supplements demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +0.1% search growth over the last 90 days.
18K13KSpike '24Spike '25 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Oct · busiest ÷ quietest = 2.9×
[**Open Trend **](https://flapen.com/research/us/health-household/hemoglobin-supplements/trend)
## **Top hemoglobin supplements search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **hemaplex iron supplement**107K/yr+4.0%12.3% conv. - **feroglobin**55K/yr+23.8%6.4% conv. - **hema plex**40K/yr-16.0%9.7% conv. - **hemaplex**30K/yr+7.0%10.8% conv. - **feroglobin liquid iron**30K/yr-12.7%8.6% conv. - **hemoglobin**12K/yr+23.6%1.0% conv. - **hemoglobin booster**12K/yr-16.2%1.0% conv. - **hemoglobin supplements**13K/yr-4.9%0.9% conv. - **hemoplex iron supplement**9K/yr-4.5%11.5% conv. - **hema plex iron pills**9K/yr-3.7%11.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/hemoglobin-supplements/search-terms)
## **Top hemoglobin supplements 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.
0%15%$126K30%$251K45%$377K60%$503K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**NaturesPlus Hema-Plex Iron - 60 Fast-Acting Softgels - 85 mg Iron + Vitamin C & Bioflavonoids for Healthy Red Blood Cells - Gluten Free - 20 Servings**NaturesPlus**$13.80**4.7★8,369 rev](https://www.amazon.com/dp/B06WVL12RL) [2**NaturesPlus Hema-Plex Iron - 60 Fast-Acting Capsules - 85 mg Chelated Iron + Vitamin C & Bioflavonoids for Healthy Red Blood Cells - Vegan Gluten Free - 30 Servings**NaturesPlus**$16.08**4.7★3,301 rev](https://www.amazon.com/dp/B015Q3BO46) [3**Vitabiotics Organic Feroglobin Liquid 500ml**Feroglobin**$26.27**4.6★3,503 rev](https://www.amazon.com/dp/B009M3THNM) [4**Vitabiotics Feroglobin 200ml Plus Liquid**Feroglobin**$17.16**4.7★1,790 rev](https://www.amazon.com/dp/B005QSAVPK) [5**NaturesPlus Hema-Plex Iron - 30 Slow-Release Tablets Pack of 2 - Total Blood Health - 85 mg Chelated Iron - with Vitamin C & Bioflavonoids - Non GMO Vegetarian & Gluten Free - 60 Total Servings**NaturesPlus**$26.28**4.7★356 rev](https://www.amazon.com/dp/B08W8J7S4H)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**NaturesPlus Hema-Plex Iron - 60 Slow-Release Mini-Tabs - 85 mg Chelated Iron - Total Blood Health - with Vitamin C & Bioflavonoids - Vegan Gluten Free - 30 Servings**NaturesPlus**$13.93**263 rev3y ago](https://www.amazon.com/dp/B0B986THKC) [**NaturesPlus Hema-Plex Iron - 30 Slow-Release Tablets Pack of 2 - Total Blood Health - 85 mg Chelated Iron - with Vitamin C & Bioflavonoids - Non GMO Vegetarian & Gluten Free - 60 Total Servings**NaturesPlus**$26.28**356 rev5y ago](https://www.amazon.com/dp/B08W8J7S4H) [**NaturesPlus Hema-Plex Iron - 60 Fast-Acting Softgels - 2 Pack - 85 mg Iron + Vitamin C & Bioflavonoids for Healthy Red Blood Cells - Vegan Gluten Free - 40 Total Servings**NaturesPlus**$26.73**8,369 rev5y ago](https://www.amazon.com/dp/B08W9G8PNM) [**Floradix Iron & Herbs - Liquid Herbal Supplement for Energy Support - Iron Supplement with Vitamin C & Vitamin B Complex - Ferrous Gluconate Iron - for Men & Women - 8.5 fl oz**Floradix**$26.74**19,689 rev5y ago](https://www.amazon.com/dp/B08TCBFSNR) [**NaturesPlus Hema-Plex Liquid Iron Mixed Berry - 8.5 oz - Iron & Essential Nutrients - Vegan Gluten Free - 25 Servings**Nature's Plus**$21.99**324 rev7y ago](https://www.amazon.com/dp/B07QHFPP4V)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**NaturesPlus Hema-Plex Iron - 30 Slow-Release Tablets Pack of 2 - Total Blood Health - 85 mg Chelated Iron - with Vitamin C & Bioflavonoids - Non GMO Vegetarian & Gluten Free - 60 Total Servings**NaturesPlus**$26.28**4.7★**▲ 98%**](https://www.amazon.com/dp/B08W8J7S4H) [**Vitabiotics Feroglobin 200ml Plus Liquid**Feroglobin**$17.16**4.7★**▲ 63%**](https://www.amazon.com/dp/B005QSAVPK) [**NaturesPlus Hema-Plex Iron - 60 Slow-Release Mini-Tabs - 85 mg Chelated Iron - Total Blood Health - with Vitamin C & Bioflavonoids - Vegan Gluten Free - 30 Servings**NaturesPlus**$13.93**4.7★**▲ 39%**](https://www.amazon.com/dp/B0B986THKC) [**Vitabiotics Organic Feroglobin Liquid 500ml**Feroglobin**$26.27**4.6★**▲ 36%**](https://www.amazon.com/dp/B009M3THNM) [**NaturesPlus Hema-Plex Iron - 60 Mixed Berry Chewables - 85 mg Elemental Iron - Total Blood Health - with Vitamin C & Bioflavonoids - Vegan Gluten Free - 20 Servings**NaturesPlus**$12.31**4.3★**▲ 22%**](https://www.amazon.com/dp/B06XPH45N6)
**~~View all trending →~~**
## **What reviews say buyers love and hate about hemoglobin supplements**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Iron**24%
*“The best iron pills ever”*
**Quality-Overall**11%
*“This is a quality supplement”*
**Taste-Overall**7%
*“Good taste”*
**Energy Level**5%
*“Good energy boost”*
**Efficiency**5%
*“Very effective”*
**Acid Regulator/Stomach Ache Relief**5%
*“gentle on my stomach”*
**Regulates Digestion**4%
*“haven't had any digestive upsets”*
**Vitamin**4%
*“Best supplement”*
**Ease Of Use**3%
*“Easy enough to use”*
**Side Effects**2%
*“Felt so much better after a few pills”*
### **What buyers complain about **
**Iron**18%
*“Low iron”*
**Taste-Overall**16%
*“It has a horrible aftertaste”*
**Leak-Proof**4%
*“leak in box”*
**Side Effects**3%
*“poured the rest of it down my sick”*
**Dosage**3%
*“I need a stronger dose”*
**Acid Regulator/Stomach Ache Relief**3%
*“Made my stomach hurt”*
**Functionality-Overall**2%
*“It didn't work for me”*
**Smell**2%
*“Has faint odor and taste”*
**Advertised Vs Actual Product**2%
*“Misleading, not adequate for children under 3”*
**Instructions/User Manual/Troubleshooting**2%
*“the instruction paper inside is dirty”*
### **Top return reasons **
**Leak-Proof**19%
**Functionality-Overall**17%
**Ingredients-Overall**17%
**Size-Overall**13%
**Iron**10%
**Inflammation**4%
**Quality-Overall**4%
**Sinus Relief**4%
**Water Resistance**4%
**Taste-Overall**4%
## **Common hemoglobin supplements questions**
- **Is hemoglobin supplements profitable to sell on Amazon United States?**
- The niche generates $838K/yr across 12 tracked products. 90-day search growth is +0.1%. Flapen's verdict: Skip it (48/100).
- **How competitive is the hemoglobin supplements niche?**
- 5 brands and 562 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in hemoglobin supplements?**
- Top complaints mined from reviews: Iron, Taste-Overall, Leak-Proof. The return rate is 0.0%.
- **When does demand for hemoglobin supplements peak?**
- Demand peaks in Aug–Oct; the busiest month runs 2.9× the quietest.
- **What does it cost to enter the hemoglobin supplements niche?**
- Listings span $12.31–$26.74; the average listing price is $19.48 (sweet spot $15–$100). The average incumbent carries 4,239 reviews — the moat a new listing must climb.
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