---
title: "Spring Valley Magnesium — $94K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/spring-valley-magnesium"
last_updated: "2026-08-07T09:54:54.419Z"
locale: en
meta:
description: "Niche score 43/100 · $94K/yr market · 45K searches/yr · $17.83 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · $94K/yr market · 45K searches/yr · $17.83 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Spring Valley Magnesium — $94K/yr Amazon US Niche (2026) - Flapen"
---
# **spring valley magnesium**
**Skip it**
Soft demand (-28.4% this quarter) — this niche doesn't clear our bar today.
Market size 23Growth 11Conversion 94Competition 16Returns 100Price range 55Avg price 82Brand share 36Review moat 21Quality gap 42
**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**
**Great****$17.83**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$4.10–$28.46**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****84%**
top-5 brand share — brands hold most of the demand
**Market size**
**Bad****$94K**
$94K/yr · 45K searches
**Review moat**
**Bad****12,187.27**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****81%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-28.4%**
90-day search growth — must beat 0% to launch
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, spring valley magnesium is a $94K/yr Amazon United States market (45K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Aug. Verdict: Skip it — 43/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **spring valley magnesium market data**
- **Units sold / yr**
- **4K–5K**
- avg 250–500/product
- **Revenue / yr**
- **$71K–$89K**
- units × avg price
- **Conversion rate**
- **11.8%**
- **Avg BSR**
- **#1,686**
- **Page quality**
- **0%**
- **Prime**
- **45%**
- **Sponsored**
- **64%**
- **Out of stock**
- **4.1%**
- **Avg brand age**
- **57 months**
- **Avg seller age**
- **142 days**
## **Competition & brand share**
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **—flat
**Sellers**
**122**
**Top-5 brand share**
**84%**
Top 20: 100%
**Top-5 click share**
**81%**
Top 20: 100%
**Open market**
**12%**
- Spring Health35% - IBQIBQ26% - 4 TOP CARE8% - KP+8% - Nature's Bounty6% - Generic5% - Open — no brand owns it (3 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 101 weeks — -28.4% search growth over the last 90 days.
1K750Spike '24Spike '25Prime Day '25 seasonDecMarJunAugNovMarMay
Peak months: Aug · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/health-household/spring-valley-magnesium/trend)
## **Top spring valley magnesium search terms**
- **spring valley magnesium**36K/yr-29.8%6.4% conv. - **spring valley magnesium 400 mg**4K/yr-16.5%11.8% conv. - **magnesium spring valley**4K/yr-29.3%11.2% conv. [**All search terms **](https://flapen.com/research/us/health-household/spring-valley-magnesium/search-terms)
## **Top spring valley magnesium 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%10%$9K20%$19K30%$28K40%$38K1101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Spring Health Spring Valley High Absorption Magnesium 200 mg Sleep Support 60 Capsules + Your Vitamin Guide**Spring Health**$13.30**4.6★358 rev](https://www.amazon.com/dp/B09P1XNCB3) [2**Spring Valley Magnesium 400 Mg 250 Tablets by Spring Valley**IBQIBQ**$16.73**4.5★227 rev](https://www.amazon.com/dp/B01AVKHO6Q) [3**H4U Magnesium Glycinate & Oxide Blend 200 mg High Absorption Magnesium Supplement Supports Relaxation Muscle & Bone Health 60 Veg Capsules**4 TOP CARE**$16.20**5.0★9 rev](https://www.amazon.com/dp/B0CS2ZYGSP) [4**Natures Bounty Magnesium 500 mg Tablets High Potency Magnesium Supplement for Bone & Muscle Health Whole Body Support 200 Count (Pack of 1)**Nature's Bounty**$8.74**4.7★105,290 rev](https://www.amazon.com/dp/B00H5PJ0HW) [5**KP+ Magnesium Oxide 400 mg | 250 Tablets | Supports Bone Nerve & Muscle Health | Extra Strength Magnesium Supplement | Pack of 1**KP+**$25.70**3.1★2 rev](https://www.amazon.com/dp/B0FWLLSN6B)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Spring Valley Extra Strength Magnesium Gummies for Bone and Muscle Health 250mg 60ct + Sticker.**Generic**$25.98**31 rev1y ago](https://www.amazon.com/dp/B0DV4F8NJ4) [**H4U Magnesium Glycinate & Oxide Blend 200 mg High Absorption Magnesium Supplement Supports Relaxation Muscle & Bone Health 60 Veg Capsules**4 TOP CARE**$16.20**9 rev2y ago](https://www.amazon.com/dp/B0CS2ZYGSP) [**KP+ Magnesium Oxide 400 mg | 250 Tablets | Supports Bone Nerve & Muscle Health | Extra Strength Magnesium Supplement | Pack of 1**KP+**$25.70**2 rev2y ago](https://www.amazon.com/dp/B0FWLLSN6B) [**KP+ Magnesium 200 mg | Sleep Support | Bone & Muscle Health | 60 Vegetarian Capsules | Pack of 2**KP+**$28.46**11 rev2y ago](https://www.amazon.com/dp/B0FV3SPB24) [**Spring Valley Magnesium 400 mg Bone & Muscle Health Tablets Dietary Supplement 250 Count Best Magnesium Supplement for Women Pastillas de Magnesio para Mujer - Set by Basket Goods**BASKETGOODS**$25.15**7 rev3y ago](https://www.amazon.com/dp/B0FB4YM8LB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**KP+ Magnesium Oxide 400 mg | 250 Tablets | Supports Bone Nerve & Muscle Health | Extra Strength Magnesium Supplement | Pack of 1**KP+**$25.70**3.1★**▲ 146%**](https://www.amazon.com/dp/B0FWLLSN6B) [**Spring Health Spring Valley High Absorption Magnesium 200 mg Sleep Support 60 Capsules + Your Vitamin Guide**Spring Health**$13.30**4.6★**▲ 145%**](https://www.amazon.com/dp/B09P1XNCB3) [**Spring Valley Magnesium 400 mg Bone & Muscle Health Tablets Dietary Supplement 250 Count Best Magnesium Supplement for Women Pastillas de Magnesio para Mujer - Set by Basket Goods**BASKETGOODS**$25.15**4.1★**▲ 109%**](https://www.amazon.com/dp/B0FB4YM8LB) [**Magnesium 250 mg 100 Tablets + VSL Sticker.**Generic**$13.30**5.0★**— 8%**](https://www.amazon.com/dp/B0DMDQPZPB) [**Spring Valley Magnesium 400 Mg 250 Tablets by Spring Valley**IBQIBQ**$16.73**4.5★**▼ 19%**](https://www.amazon.com/dp/B01AVKHO6Q)
**~~View all trending →~~**
## **What buyers say about spring valley magnesium**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“Good product, works as expected”*
**Value For Money**16%
*“Best Price”*
**Magnesium**12%
*“Great magnesium support”*
**Sleep Quality**8%
*“Better sleep”*
**Vitamin**7%
*“Important Vitamins”*
**Advertised Vs Actual Product**6%
*“Works as advertised”*
**Muscle Pain Relief**5%
*“muscle cramping”*
**Ease Of Chewing/Swallowing**3%
*“Ez to swallow”*
**Ease Of Use**2%
*“Easy order”*
**Regulates Digestion**2%
*“gets rid of constipation for me”*
### **What buyers complain about **
**Magnesium**19%
*“Who knew i was low in magnesium”*
**Sleep Quality**7%
*“kept waking up the whole night”*
**Ease Of Chewing/Swallowing**6%
*“Hard to swallow”*
**Dosage**6%
*“Messed me up bad after just one dose”*
**Acid Regulator/Stomach Ache Relief**5%
*“discomfort in my stomach”*
**Size-Overall**4%
*“the capsules themselves are large”*
**Strength**3%
*“Too strong”*
**Side Effects**3%
*“Causes me diarrhea”*
**Allergies**3%
*“Allergic reaction”*
**Durability**2%
*“they broke way to easily”*
### **Top return reasons **
**Magnesium**60%
**Dosage**10%
**Ingredients-Overall**5%
**Advertised Vs Actual Product**5%
**Ease Of Chewing/Swallowing**5%
**Size-Overall**5%
**Functionality-Overall**5%
**Sleep Quality**5%
## **Common questions**
- **Is spring valley magnesium profitable to sell on Amazon United States?**
- The niche generates $94K/yr across 11 tracked products. 90-day search growth is -28.4%. Flapen's verdict: Skip it (43/100).
- **How competitive is the spring valley magnesium niche?**
- 9 brands and 122 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 84% of demand.
- **What do buyers complain about in spring valley magnesium?**
- Top complaints mined from reviews: Magnesium, Sleep Quality, Ease Of Chewing/Swallowing. The return rate is 0.0%.
- **When does demand for spring valley magnesium peak?**
- Demand peaks in Aug; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the spring valley magnesium niche?**
- Listings span $4.10–$28.46; the average listing price is $17.83 (sweet spot $15–$100). The average incumbent carries 12,187 reviews — the moat a new listing must climb.
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