---
title: "Strontium — $413K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/strontium"
last_updated: "2026-08-06T14:57:04.808Z"
locale: en
meta:
description: "Niche score 59/100 · $413K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 59/100 · $413K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Strontium — $413K/yr Amazon US Niche (2026) - Flapen"
---
# **strontium**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 56Growth 31Conversion 97Competition 43Returns 100Price range 83Avg price 95Brand share 46Review moat 75Quality gap 24
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****14.4%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$34.84**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.65–$110.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****515.32**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Good****$413K**
$413K/yr · 82K searches
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****59%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+4.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, strontium is a $413K/yr Amazon United States market (82K searches/yr). The top 5 brands hold 78% of demand. Verdict: Worth a look — 59/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **strontium market data**
- **Units sold / yr**
- **10K–13K**
- avg 500–750/product
- **Revenue / yr**
- **$348K–$436K**
- units × avg price
- **Conversion rate**
- **14.4%**
- **Avg BSR**
- **#1,857**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **79%**
- **Out of stock**
- **5.6%**
- **Avg brand age**
- **119 months**
- **Avg seller age**
- **163 days**
## **Competition & brand share**
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▲rising
**Sellers**
**24**
**Top-5 brand share**
**78%**
Top 20: 100%
**Top-5 click share**
**59%**
Top 20: 100%
**Open market**
**16%**
- ALGAECAL32% - Life Extension18% - Nutricost11% - NusaPure9% - Pure Encapsulations8% - Best Naturals6% - Open — no brand owns it (7 brands, 16%)
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +4.9% search growth over the last 90 days.
2K2KPrime Day '25Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/health-household/strontium/trend)
## **Top strontium search terms**
- **strontium**32K/yr+2.8%10.8% conv. - **strontium boost bone strength**22K/yr+13.0%8.4% conv. - **algaecal strontium boost**10K/yr+15.5%13.2% conv. - **strontium citrate**12K/yr-6.5%9.5% conv. - **algae cal strontium boost**2K/yr+23.6%17.3% conv. - **strontium supplement**4K/yr-30.3%10.9% conv. [**All search terms **](https://flapen.com/research/us/health-household/strontium/search-terms)
## **Top strontium 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%5%$21K10%$41K15%$62K20%$83K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Life Extension Strontium Caps Trace Mineral for Advanced Bone Health Support Gluten Free Non-GMO Vegetarian 90 Capsules**Life Extension**$14.78**4.6★1,219 rev](https://www.amazon.com/dp/B004IYYAUK) [2**AlgaeCal Strontium Boost for Bone Density & Strength 60 Caps 3 Packs**ALGAECAL**$100.15**4.6★1,042 rev](https://www.amazon.com/dp/B01MRD2J2X) [3**NusaPure Strontium Citrate - Suitable for Vegetarian/Vegan Non - GMO - 680 mg 200 Capsules**NusaPure**$23.23**4.7★524 rev](https://www.amazon.com/dp/B07HPD1ZP9) [4**AlgaeCal Strontium Boost for Bone Density & Strength 60 Caps 1 Pack**ALGAECAL**$37.32**4.6★1,042 rev](https://www.amazon.com/dp/B09ZPVJGD3) [5**Nutricost Strontium Capsules (750mg) 240 Capsules Gluten-Free Vegetarian**Nutricost**$28.51**4.6★245 rev](https://www.amazon.com/dp/B0B22R9P79)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Liposomal Strontium Citrate 680mg Supplement High Absorption Bone Health & Density Support with Calcium Magnesium Vitamin K2 MK-7 Bone Strength Formula 60 Softgels**Calyverithion**$25.80**15 rev2mo ago](https://www.amazon.com/dp/B0GZW2QGV7) [**AlgaeCal Strontium Boost for Bone Density & Strength 60 Caps 1 Pack**ALGAECAL**$37.32**1,042 rev4y ago](https://www.amazon.com/dp/B09ZPVJGD3) [**ALGAECAL Plant Based Calcium Supplement for Bone Strength 90 Caps 1 Pack**ALGAECAL**$54.22**1,325 rev4y ago](https://www.amazon.com/dp/B09ZQ74495) [**Nutricost Strontium Capsules (750mg) 240 Capsules Gluten-Free Vegetarian**Nutricost**$28.51**245 rev4y ago](https://www.amazon.com/dp/B0B22R9P79) [**Nutricost Strontium Capsules (750mg) 120 Capsules Vegetarian Gluten-Free**Nutricost**$18.60**245 rev4y ago](https://www.amazon.com/dp/B0B22Y6384)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Liposomal Strontium Citrate 680mg Supplement High Absorption Bone Health & Density Support with Calcium Magnesium Vitamin K2 MK-7 Bone Strength Formula 60 Softgels**Calyverithion**$25.80**5.0★**▲ 319%**](https://www.amazon.com/dp/B0GZW2QGV7) [**AlgaeCal Strontium Boost for Bone Density & Strength 60 Caps 3 Packs**ALGAECAL**$100.15**4.6★**▲ 133%**](https://www.amazon.com/dp/B01MRD2J2X) [**ALGAECAL Plant Based Calcium Supplement for Bone Strength 90 Caps 1 Pack**ALGAECAL**$54.22**4.6★**▲ 129%**](https://www.amazon.com/dp/B09ZQ74495) [**ALGAECAL Bone Builder Pack Calcium + Strontium for Bone Density 1 Month**ALGAECAL**$110.01**4.5★**▲ 51%**](https://www.amazon.com/dp/B07MFZSLFZ) [**Best Naturals Strontium Bone Building Formula 680mg/serving 90 Capsules**Best Naturals**$9.65**4.6★**▲ 31%**](https://www.amazon.com/dp/B075JQLQG8)
**~~View all trending →~~**
## **What buyers say about strontium**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**13%
*“Great clean quality”*
**Calcium**11%
*“Natural calcium”*
**Joint Pain**9%
*“It also helps qoth joint pain”*
**Vitamin**7%
*“It's nice that it also includes other vitamins”*
**Efficiency**5%
*“Effective”*
**Ease Of Chewing/Swallowing**5%
*“Nice product easy on the stomach”*
**Ease Of Use**4%
*“which is convenient for daily use”*
**Muscle Pain Relief**4%
*“Ease of use for Bone Strength”*
**Side Effects**3%
*“No side effects”*
**Value For Money**3%
*“Worth every penny”*
### **What buyers complain about **
**Value For Money**14%
*“Price increased”*
**Side Effects**8%
*“Stomach upset”*
**Functionality-Overall**7%
*“Doesnt work”*
**Durability**5%
*“I broke both my wrist within a few years of each other so”*
**Calcium**5%
*“Now I am also questioning the calcium”*
**Ingredients-Overall**5%
*“this item has sunflower oil and gum Acacia and we would not purchase this again”*
**Joint Pain**4%
*“I don't think it is helping me with joints”*
**Size-Overall**4%
*“Large capsules”*
**Dosage**4%
*“I couldn't take more than 1 pill a day. supposed to take 2 a day”*
**Acid Regulator/Stomach Ache Relief**4%
*“Stomach Pain and Distention”*
### **Top return reasons **
**Calcium**33%
**Ingredients-Overall**33%
**Instructions/User Manual/Troubleshooting**33%
## **Common questions**
- **Is strontium profitable to sell on Amazon United States?**
- The niche generates $413K/yr across 19 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +4.9%. Flapen's verdict: Worth a look (59/100).
- **How competitive is the strontium niche?**
- 13 brands and 24 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 78% of demand.
- **What do buyers complain about in strontium?**
- Top complaints mined from reviews: Value For Money, Side Effects, Functionality-Overall. The return rate is 0.0%.
- **When does demand for strontium peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the strontium niche?**
- Listings span $9.65–$110.01; the average listing price is $34.84 (sweet spot $15–$100). The average incumbent carries 515 reviews — the moat a new listing must climb.
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