---
title: "Citrato De Magnesio 300mg — $261K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/citrato-de-magnesio-300mg"
last_updated: "2026-08-11T01:29:33.239Z"
locale: en
meta:
description: "Niche score 42/100 · $261K/yr market · 160K searches/yr · $13.78 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · $261K/yr market · 160K searches/yr · $13.78 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Citrato De Magnesio 300mg — $261K/yr Amazon US Niche (2026) - Flapen"
---
# **citrato de magnesio 300mg**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 48Growth 38Conversion 94Competition 8Returns 100Price range 42Avg price 65Brand share 0Review moat 18Quality gap 24
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.8%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$13.78**
avg listing price — sweet spot $15–$100
**Market size**
**Okay****$261K**
$261K/yr · 160K searches
**Price range**
**Okay****$6.57–$21.13**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Okay****+10.5%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****17,253.88**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****90%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, citrato de magnesio 300mg is a $261K/yr Amazon United States market (160K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 42/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **citrato de magnesio 300mg market data**
- **Units sold / yr**
- **20K–25K**
- avg 2,500–3,000/product
- **Revenue / yr**
- **$276K–$345K**
- units × avg price
- **Conversion rate**
- **11.8%**
- **Avg BSR**
- **#138**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **50%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **73 months**
- **Avg seller age**
- **157 days**
## **Competition & brand share**
The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▼falling
**Sellers**
**85**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**90%**
Top 20: 100%
**Open market**
**0%**
- Nature Made92% - NOW Foods5% - Pure Encapsulations3%
## **Demand & seasonality**
Weekly Amazon search volume, last 101 weeks — +10.5% search growth over the last 90 days.
4K3KSpike '25Prime Day '25 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/us/health-household/citrato-de-magnesio-300mg/trend)
## **Top citrato de magnesio 300mg search terms**
- **nature made magnesium citrate**42K/yr+9.0%13.1% conv. - **magnesium citrate 250 mg**40K/yr+22.7%8.1% conv. - **magnesium citrate 300mg**12K/yr+10.5%2.2% conv. - **magnesium citrate nature made**13K/yr+11.6%12.5% conv. - **magnesium citrate 250**8K/yr+61.7%6.5% conv. - **nature made magnesium citrate 250 mg**9K/yr+8.9%18.4% conv. - **magnesium citrate softgels**8K/yr-11.3%3.9% conv. - **magnesium citrate 250mg**6K/yr+14.4%9.6% conv. - **magnesium citrate 250 mg softgels**4K/yr+10.9%15.0% conv. - **citrato de magnesio nature made**4K/yr-23.9%3.2% conv. [**All search terms **](https://flapen.com/research/us/health-household/citrato-de-magnesio-300mg/search-terms)
## **Top citrato de magnesio 300mg 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.
0%15%$39K30%$78K45%$117K60%$157K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nature Made Magnesium Citrate 250 mg per Serving 120 Softgels**Nature Made**$14.91**4.6★24,924 rev](https://www.amazon.com/dp/B00CU3SX4K) [2**Nature Made Magnesium Citrate 250 mg per Serving 60 Softgels**Nature Made**$8.46**4.6★24,924 rev](https://www.amazon.com/dp/B00CBXSSCQ) [3**Nature Made Extra Strength Dosage Magnesium Citrate Tablets 60 Tablets**Nature Made**$13.29**4.4★75 rev](https://www.amazon.com/dp/B0GN5891HN) [4**NOW Supplements Magnesium Citrate Enzyme Function* Nervous System Support* 120 Veg Capsules**NOW Foods**$9.97**4.7★25,502 rev](https://www.amazon.com/dp/B0014M1VII) [5**Nature Made High Absorption Magnesium Citrate 200mg per Serving 90 Gummies**Nature Made**$16.22**4.5★11,357 rev](https://www.amazon.com/dp/B086RPFDSF)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Nature Made Extra Strength Dosage Magnesium Citrate Tablets 60 Tablets**Nature Made**$13.29**75 rev5mo ago](https://www.amazon.com/dp/B0GN5891HN) [**Nature Made Magnesium Glycinate 300 mg per 3 Capsules 90 Capsules**Nature Made**$21.13**2,683 rev1y ago](https://www.amazon.com/dp/B0D9MV3YJQ) [**Nature Made High Absorption Magnesium Citrate 200mg per Serving 90 Gummies**Nature Made**$16.22**11,357 rev6y ago](https://www.amazon.com/dp/B086RPFDSF) [**Nature Made Magnesium Citrate 250 mg per Serving 120 Softgels**Nature Made**$14.91**24,924 rev13y ago](https://www.amazon.com/dp/B00CU3SX4K) [**Nature Made Magnesium Citrate 250 mg per Serving 60 Softgels**Nature Made**$8.46**24,924 rev13y ago](https://www.amazon.com/dp/B00CBXSSCQ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Nature Made Extra Strength Dosage Magnesium Citrate Tablets 60 Tablets**Nature Made**$13.29**4.4★**▲ 237%**](https://www.amazon.com/dp/B0GN5891HN) [**NOW Supplements Magnesium Citrate Enzyme Function* Nervous System Support* 120 Veg Capsules**NOW Foods**$9.97**4.7★**▲ 51%**](https://www.amazon.com/dp/B0014M1VII) [**Nature Made High Absorption Magnesium Citrate 200mg per Serving 90 Gummies**Nature Made**$16.22**4.5★**▲ 25%**](https://www.amazon.com/dp/B086RPFDSF) [**Nature Made Magnesium Glycinate 300 mg per 3 Capsules 90 Capsules**Nature Made**$21.13**4.7★**— 7%**](https://www.amazon.com/dp/B0D9MV3YJQ) [**Pure Encapsulations Magnesium (Citrate) - Supplement for Sleep Heart Health Cognitive Health Bone Health Energy Muscles and Metabolism* - with Premium Magnesium - 90 Capsules**Pure Encapsulations**$19.70**4.7★**— 6%**](https://www.amazon.com/dp/B0058HWV70)
**~~View all trending →~~**
## **What buyers say about citrato de magnesio 300mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“Excellent product”*
**Magnesium**15%
*“Great quality magnesium supplement”*
**Sleep Quality**8%
*“sleep better”*
**Vitamin**6%
*“Great value will buy again vitamins”*
**Value For Money**4%
*“Price was reasonable”*
**Ease Of Chewing/Swallowing**4%
*“Easy to swallow”*
**Dosage**3%
*“The value of this supplement was also good, for the dose per day”*
**Muscle Pain Relief**3%
*“reduce muscle cramping”*
**Regulates Digestion**3%
*“this one hasn't caused any digestive issues”*
**Advertised Vs Actual Product**3%
*“Arrived as expected”*
### **What buyers complain about **
**Size-Overall**27%
*“Capsules too large”*
**Ease Of Chewing/Swallowing**9%
*“Too big for me to swallow”*
**Magnesium**6%
*“Both times bottles came filled with loose magnesium powder”*
**Dosage**5%
*“Taking 5 or 6 of these twice a day was ridiculous”*
**Regulates Digestion**4%
*“I have had issues with IBS/Constipation for years”*
**Sleep Quality**3%
*“Does not help with sleep”*
**Ingredients-Overall**3%
*“Contaminated with White Powder”*
**Functionality-Overall**2%
*“Did not work for me”*
**Side Effects**2%
*“I feel absolutely no effect at all”*
**Taste-Overall**2%
*“unpleasant aftertaste”*
### **Top return reasons **
**Magnesium**41%
**Functionality-Overall**10%
**Ease Of Chewing/Swallowing**10%
**Size-Overall**9%
**Advertised Vs Actual Product**5%
**Leak-Proof**5%
**Contamination**3%
**Color**3%
**Product Condition**3%
**Dosage**3%
## **Common questions**
- **Is citrato de magnesio 300mg profitable to sell on Amazon United States?**
- The niche generates $261K/yr across 8 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +10.5%. Flapen's verdict: Skip it (42/100).
- **How competitive is the citrato de magnesio 300mg niche?**
- 3 brands and 85 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in citrato de magnesio 300mg?**
- Top complaints mined from reviews: Size-Overall, Ease Of Chewing/Swallowing, Magnesium. The return rate is 0.0%.
- **When does demand for citrato de magnesio 300mg peak?**
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- **What does it cost to enter the citrato de magnesio 300mg niche?**
- Listings span $6.57–$21.13; the average listing price is $13.78 (sweet spot $15–$100). The average incumbent carries 17,254 reviews — the moat a new listing must climb.
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