strontium
Worth a lookShows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible14.4%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$34.84avg listing price — sweet spot $15–$100
Price range
Great$9.65–$110.01cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good515.32avg incumbent reviews — the moat a new listing must climb
Market size
Good$413K$413K/yr · 82K searches
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Growth
Okay+4.9%90-day search growth — must beat 0% to launch
Quality gap
Bad4.6★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
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.No pronounced peak months · busiest ÷ quietest = 1.4×
Top strontium search terms
- strontium32K/yr
- strontium boost bone strength22K/yr
- algaecal strontium boost10K/yr
- strontium citrate12K/yr
- algae cal strontium boost2K/yr
- strontium supplement4K/yr
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.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Life Extension Strontium Caps Trace Mineral for Advanced Bone Health Support Gluten Free Non-GMO Vegetarian 90 Capsules
Life Extension$14.784.6★1,219 rev
AlgaeCal Strontium Boost for Bone Density & Strength 60 Caps 3 Packs
ALGAECAL$100.154.6★1,042 rev
NusaPure Strontium Citrate - Suitable for Vegetarian/Vegan Non - GMO - 680 mg 200 Capsules
NusaPure$23.234.7★524 rev
AlgaeCal Strontium Boost for Bone Density & Strength 60 Caps 1 Pack
ALGAECAL$37.324.6★1,042 rev
Nutricost Strontium Capsules (750mg) 240 Capsules Gluten-Free Vegetarian
Nutricost$28.514.6★245 rev
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$25.8015 rev
AlgaeCal Strontium Boost for Bone Density & Strength 60 Caps 1 Pack
ALGAECAL$37.321,042 rev
ALGAECAL Plant Based Calcium Supplement for Bone Strength 90 Caps 1 Pack
ALGAECAL$54.221,325 rev
Nutricost Strontium Capsules (750mg) 240 Capsules Gluten-Free Vegetarian
Nutricost$28.51245 rev
Nutricost Strontium Capsules (750mg) 120 Capsules Vegetarian Gluten-Free
Nutricost$18.60245 rev
Trending
90-day click momentumLiposomal Strontium Citrate 680mg Supplement High Absorption Bone Health & Density Support with Calcium Magnesium Vitamin K2 MK-7 Bone Strength Formula 60 Softgels
Calyverithion$25.805.0★
AlgaeCal Strontium Boost for Bone Density & Strength 60 Caps 3 Packs
ALGAECAL$100.154.6★
ALGAECAL Plant Based Calcium Supplement for Bone Strength 90 Caps 1 Pack
ALGAECAL$54.224.6★
ALGAECAL Bone Builder Pack Calcium + Strontium for Bone Density 1 Month
ALGAECAL$110.014.5★
Best Naturals Strontium Bone Building Formula 680mg/serving 90 Capsules
Best Naturals$9.654.6★
What buyers say about strontium
What buyers praise and complain about, mined from review topics.What buyers love
“Great clean quality”
“Natural calcium”
“It also helps qoth joint pain”
“It's nice that it also includes other vitamins”
“Effective”
“Nice product easy on the stomach”
“which is convenient for daily use”
“Ease of use for Bone Strength”
“No side effects”
“Worth every penny”
What buyers complain about
“Price increased”
“Stomach upset”
“Doesnt work”
“I broke both my wrist within a few years of each other so”
“Now I am also questioning the calcium”
“this item has sunflower oil and gum Acacia and we would not purchase this again”
“I don't think it is helping me with joints”
“Large capsules”
“I couldn't take more than 1 pill a day. supposed to take 2 a day”
“Stomach Pain and Distention”
Top return reasons
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.