---
title: "Spring Valley Calcium 600 Mg — $80K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/spring-valley-calcium-600-mg"
last_updated: "2026-08-05T23:49:37.009Z"
locale: en
meta:
description: "Niche score 48/100 · $80K/yr market · 27K searches/yr · $22.12 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $80K/yr market · 27K searches/yr · $22.12 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Spring Valley Calcium 600 Mg — $80K/yr Amazon US Niche (2026) - Flapen"
---
# **spring valley calcium 600 mg**
**Skip it**
Brand-locked demand (top 5 brands take 93% of clicks) — this niche doesn't clear our bar today.
Market size 20Growth 35Conversion 96Competition 36Returns 100Price range 77Avg price 93Brand share 17Review moat 25Quality gap 33
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.6%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$22.12**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.89–$32.62**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+7.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****4,073.5**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$80K**
$80K/yr · 27K searches
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
**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 calcium 600 mg is a $80K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 93% of demand. Verdict: Skip it — 48/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **spring valley calcium 600 mg market data**
- **Units sold / yr**
- **4K–5K**
- avg 250–500/product
- **Revenue / yr**
- **$88K–$111K**
- units × avg price
- **Conversion rate**
- **13.6%**
- **Avg BSR**
- **#571**
- **Page quality**
- **0%**
- **Prime**
- **55%**
- **Sponsored**
- **85%**
- **Out of stock**
- **2.9%**
- **Avg brand age**
- **78 months**
- **Avg seller age**
- **147 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**8 **▲rising
**Sellers**
**83**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 100%
**Open market**
**4%**
- Generic43% - GoodDealsHouse19% - STS Home17% - Unique Bundle Store8% - Nature's Bounty7% - KP+3% - Open — no brand owns it (2 brands, 4%)
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +7.9% search growth over the last 90 days.
600400Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/us/health-household/spring-valley-calcium-600-mg/trend)
## **Top spring valley calcium 600 mg 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%$4K10%$8K15%$12K20%$16K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Spring - Valley Calcium 600 mg + Vitamin D 20 mcg - 500 Count with Weekly Pill Organizer GoodDealsHouse - Bone Health Dietary Supplement Tablets**GoodDealsHouse**$30.11**4.4★32 rev](https://www.amazon.com/dp/B0DJV4W2JC) [2**Spring - Valley Calcium 600mg Natural Bone Health Calcium - 100 Tablets Pack of 3**Generic**$30.90**4.7★237 rev](https://www.amazon.com/dp/B09XJKD9FY) [3**Calcium Plus Vitamin D Tablets Dietary Supplement by Spring - Valley Bone Health VIT D3 20 mcg 600 mg 250 Count.**Generic**$21.88**4.4★27 rev](https://www.amazon.com/dp/B0FJKDQS58) [4**Spring Valley Calcium 600 mg 100 Tablets | Calcium Supplement 600 mg | Calcium Supplement + STS Sticker.**STS Home**$15.87**4.6★71 rev](https://www.amazon.com/dp/B0D5VY4D69) [5**Calcium Plus Vitamin D3 150 Mini Softgels | Calcium Supplement | softgels | Calcium 600 mg with Vitamin d3 | Calcium Carbonate 600 mg 150 Mini Softgels**Generic**$23.79**4.4★20 rev](https://www.amazon.com/dp/B0GPHXFLTX)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Calcium Supplement for Women and Men 600 mg Calcium with Vitamin D3 Essential Bone Health Support 500 Tablets Per Bottle for Over 8 Months (250 Days) of Supply (Pack of 1)**Unique Bundle Store**$24.52**12 rev11mo ago](https://www.amazon.com/dp/B0FLSC4W8J) [**Spring - Valley Calcium 600 mg + Vitamin D 20 mcg - 500 Count with Weekly Pill Organizer GoodDealsHouse - Bone Health Dietary Supplement Tablets**GoodDealsHouse**$30.11**32 rev1y ago](https://www.amazon.com/dp/B0DJV4W2JC) [**Spring Valley Calcium 500 mg Plus Vitamin D 25 mcg Bone Health Dietary Supplement Gummies 100 Count + DRI Store Sticker.**Generic**$25.78**42 rev1y ago](https://www.amazon.com/dp/B0DH78VTLD) [**Natures Wonder Calcium 600mg + Vitamin D3 20mcg Bone Health 220 Tablets**Nature's Wonder**$9.89**677 rev1y ago](https://www.amazon.com/dp/B0DD1S75B2) [**Spring Valley Calcium 600 mg 100 Tablets | Calcium Supplement 600 mg | Calcium Supplement + STS Sticker.**STS Home**$15.87**71 rev2y ago](https://www.amazon.com/dp/B0D5VY4D69)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Calcium Citrate 600mg 300 Tablets per Bottle Bone & Joint Health (Pack of 1)**Generic**$24.85**3.0★**▲ 141%**](https://www.amazon.com/dp/B0DLSRP2Y7) [**Calcium Supplement for Women and Men 600 mg Calcium with Vitamin D3 Essential Bone Health Support 500 Tablets Per Bottle for Over 8 Months (250 Days) of Supply (Pack of 1)**Unique Bundle Store**$24.52**5.0★**▲ 136%**](https://www.amazon.com/dp/B0FLSC4W8J) [**Calcium Plus Vitamin D3 150 Mini Softgels | Calcium Supplement | softgels | Calcium 600 mg with Vitamin d3 | Calcium Carbonate 600 mg 150 Mini Softgels**Generic**$23.79**4.4★**▲ 135%**](https://www.amazon.com/dp/B0GPHXFLTX) [**Calcium 600 mg 100 Tablets Dietary Supplement Bone Health Calcium (Pack of 3)**Generic**$32.62**4.2★**▲ 109%**](https://www.amazon.com/dp/B0DLVQVDX4) [**Natures Wonder Calcium 600mg + Vitamin D3 20mcg Bone Health 220 Tablets**Nature's Wonder**$9.89**4.7★**▲ 85%**](https://www.amazon.com/dp/B0DD1S75B2)
**~~View all trending →~~**
## **What buyers say about spring valley calcium 600 mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Calcium**17%
*“Calcium works well”*
**Quality-Overall**17%
*“reliable”*
**Value For Money**13%
*“Good deal”*
**Vitamin**10%
*“Nicely easy way to get these vitamins”*
**Advertised Vs Actual Product**9%
*“Excellent - as advertised”*
**Ease Of Chewing/Swallowing**7%
*“I have no problem swallowing”*
**Ease Of Use**4%
*“Ease of use”*
**Efficiency**3%
*“Effective product”*
**Joint Pain**2%
*“It is an excellent supplement for bone health”*
**Nutritional Content**1%
*“It covers many nutritional needs as I age”*
### **What buyers complain about **
**Size-Overall**26%
*“Very large pills”*
**Ease Of Chewing/Swallowing**13%
*“painful to swallow”*
**Calcium**11%
*“Not all Calcium bottles”*
**Dosage**5%
*“I would not take this without talking to a doctor first”*
**Value For Money**4%
*“Waste of money”*
**Quality-Overall**2%
*“this supplement is junk”*
**Smell**2%
*“These calcium capsules smell horrible”*
**Nutritional Content**1%
*“Total crap for your body”*
**Allergies**1%
*“I'm allergic and get severe migraine attacks”*
**Durability**1%
*“they broke way to easily”*
### **Top return reasons **
**Calcium**33%
**Size-Overall**17%
**Ease Of Chewing/Swallowing**17%
**Dosage**8%
**Weight Heavy**4%
**Ingredients-Overall**4%
**Value For Money**4%
**Vitamin**4%
**Acid Regulator/Stomach Ache Relief**4%
**Advertised Vs Actual Product**4%
## **Common questions**
- **Is spring valley calcium 600 mg profitable to sell on Amazon United States?**
- The niche generates $80K/yr across 20 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +7.9%. Flapen's verdict: Skip it (48/100).
- **How competitive is the spring valley calcium 600 mg niche?**
- 8 brands and 83 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in spring valley calcium 600 mg?**
- Top complaints mined from reviews: Size-Overall, Ease Of Chewing/Swallowing, Calcium. The return rate is 0.0%.
- **When does demand for spring valley calcium 600 mg peak?**
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- **What does it cost to enter the spring valley calcium 600 mg niche?**
- Listings span $9.89–$32.62; the average listing price is $22.12 (sweet spot $15–$100). The average incumbent carries 4,074 reviews — the moat a new listing must climb.
## **Related niches in Health & Household**
- 76 [**cedar oil**](https://flapen.com/research/us/health-household/cedar-oil)$1.2M/yr+214.4%**Launch it**- 77 [**nutrapure glp1 cutting mix**](https://flapen.com/research/us/health-household/nutrapure-glp1-cutting-mix)$149K/yr+940.2%**Worth a look**- 77 [**dexcom g7**](https://flapen.com/research/us/health-household/dexcom-g7)$2.0M/yr+39.9%**Launch it**- 77 [**purelia**](https://flapen.com/research/us/health-household/purelia)$635K/yr+359.7%**Worth a look**- 77 [**graduation napkins**](https://flapen.com/research/us/health-household/graduation-napkins)$302K/yr+385.7%**Worth a look**- 77 [**credit card wand**](https://flapen.com/research/us/health-household/credit-card-wand)$418K/yr+101.3%**Worth a look**[**All Health & Household niches **](https://flapen.com/research/us/health-household)