---
title: "Oscal — $2.7M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/oscal"
last_updated: "2026-08-06T19:07:02.029Z"
locale: en
meta:
description: "Niche score 51/100 · $2.7M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $2.7M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Oscal — $2.7M/yr Amazon US Niche (2026) - Flapen"
---
# **oscal**
**Worth a look**
Shows low returns (0.0%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 96Growth 18Conversion 99Competition 25Returns 100Price range 77Avg price 78Brand share 0Review moat 23Quality gap 19
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****18.8%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Incredible****$2.7M**
$2.7M/yr · 898K searches
**Avg price**
**Great****$16.04**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.30–$37.63**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Bad****70%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****8,123.36**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-13.1%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, oscal is a $2.7M/yr Amazon United States market (898K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **oscal market data**
- **Units sold / yr**
- **150K–200K**
- avg 15,000–20,000/product
- **Revenue / yr**
- **$2.4M–$3.2M**
- units × avg price
- **Conversion rate**
- **18.8%**
- **Avg BSR**
- **#259**
- **Page quality**
- **0%**
- **Prime**
- **93%**
- **Sponsored**
- **57%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **72 months**
- **Avg seller age**
- **150 days**
## **Competition & brand share**
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▲rising
**Sellers**
**46**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**0%**
- CITRACAL55% - Caltrate44% - Generic1% - Open — no brand owns it (0%)
## **Demand**
Weekly Amazon search volume, last 18 weeks — -13.1% search growth over the last 90 days.
25K15KSpike '26Mar '26Apr '26May '26May '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/us/health-household/oscal/trend)
## **Top oscal search terms**
- **caltrate 600 plus d3**198K/yr+7.8%20.4% conv. - **citracal**144K/yr-0.4%15.5% conv. - **citracal slow release 1200 plus d3**179K/yr-46.3%27.8% conv. - **caltrate**139K/yr+4.8%11.9% conv. - **caltrate bone health advanced 600 d3**26K/yr-6.2%18.4% conv. - **citrical**29K/yr-13.3%19.1% conv. - **citracal +**19K/yr+14.9%15.9% conv. - **caltrate 600 d3**12K/yr+237.9%14.3% conv. - **citracal slow release 1200**22K/yr-39.3%13.2% conv. - **citracal calcium supplement**40K/yr-41.0%14.1% conv. [**All search terms **](https://flapen.com/research/us/health-household/oscal/search-terms)
## **Top oscal 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%$271K20%$542K30%$813K40%$1.1M101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Caltrate 600 Plus D3 Calcium and Vitamin D Supplement Tablets Bone Health Supplements for Adults - 200 Count**Caltrate**$13.64**4.7★16,549 rev](https://www.amazon.com/dp/B0013TMWIK) [2**Citracal Slow Release- Calcium 1200 mg with Vitamin D3 Magnesium Calcium Supplement Bone Health Support Take Once Daily Caplet 185 Count**CITRACAL**$22.96**4.7★11,455 rev](https://www.amazon.com/dp/B07RF1QQ4H) [3**Citracal Maximum Plus Calcium Supplement - Calcium Citrate with Vitamin D3 Zinc & Essential Minerals for Bone Health Support Ages 12+ 180 Count (Packaging May Vary)**CITRACAL**$11.74**4.7★10,625 rev](https://www.amazon.com/dp/B001LRPUMY) [4**Citracal Petites- Calcium Citrate with Vitamin D3 Bone Health Support Calcium Supplement for Ages 12+ 375 Count (Packaging May Vary)**CITRACAL**$14.87**4.7★8,355 rev](https://www.amazon.com/dp/B07RCJY6WD) [5**Citracal Slow Release- Calcium 1200 mg with Vitamin D3 Magnesium Calcium Supplement Bone Health Support Take Once Daily Caplet 80 Count**CITRACAL**$10.60**4.7★11,920 rev](https://www.amazon.com/dp/B004L4EJQ2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Citra-Cl Maximum Plus Calcium Citrate + Vitamin D3 Supplement Tablets 280 ct. Supports Bone Health & Strength - 4+ Month Supply + Exclusive Vitamin Guide**Generic**$37.63**12 rev4mo ago](https://www.amazon.com/dp/B0GST8BMCB) [**Citracal Slow Release- Calcium 1200 mg with Vitamin D3 Magnesium Calcium Supplement Bone Health Support Take Once Daily Caplet 185 Count**CITRACAL**$22.96**11,455 rev7y ago](https://www.amazon.com/dp/B07RF1QQ4H) [**Citracal Petites- Calcium Citrate with Vitamin D3 Bone Health Support Calcium Supplement for Ages 12+ 375 Count (Packaging May Vary)**CITRACAL**$14.87**8,355 rev7y ago](https://www.amazon.com/dp/B07RCJY6WD) [**Caltrate Minis 600 Plus D3 Plus Minerals Calcium and Vitamin D Supplement Tablets Bone Health and Mineral Supplement for Adults - 150 Count**Caltrate**$18.01**7,711 rev12y ago](https://www.amazon.com/dp/B00K7RQ1KE) [**Citracal Slow Release- Calcium 1200 mg with Vitamin D3 Magnesium Calcium Supplement Bone Health Support Take Once Daily Caplet 80 Count**CITRACAL**$10.60**11,920 rev13y ago](https://www.amazon.com/dp/B004L4EJQ2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Citra-Cl Maximum Plus Calcium Citrate + Vitamin D3 Supplement Tablets 280 ct. Supports Bone Health & Strength - 4+ Month Supply + Exclusive Vitamin Guide**Generic**$37.63**4.7★**▲ 283%**](https://www.amazon.com/dp/B0GST8BMCB) [**Caltrate 600 Plus D3 Calcium and Vitamin D Supplement Tablets Bone Health Supplements for Adults - 60 Count**Caltrate**$8.30**4.7★**▲ 55%**](https://www.amazon.com/dp/B006H9R506) [**Citracal Slow Release- Calcium 1200 mg with Vitamin D3 Magnesium Calcium Supplement Bone Health Support Take Once Daily Caplet 80 Count**CITRACAL**$10.60**4.7★**▲ 18%**](https://www.amazon.com/dp/B004L4EJQ2) [**Caltrate 600 Plus D3 Calcium and Vitamin D Supplement Tablets Bone Health Supplements for Adults - 120 Count**Caltrate**$12.29**4.8★**▲ 16%**](https://www.amazon.com/dp/B0000VLXDM) [**Caltrate Chewables 600 +D3 Plus Minerals Calcium and Vitamin D Sugar Free Cherry Orange and Fruit Punch 155 count**Caltrate**$20.68**4.5★**▲ 14%**](https://www.amazon.com/dp/B001IY03L8)
**~~View all trending →~~**
## **What buyers say about oscal**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Calcium**20%
*“Great Calcium Supplement”*
**Ease Of Chewing/Swallowing**14%
*“Chewable”*
**Value For Money**10%
*“Great value”*
**Quality-Overall**9%
*“The quality is consistent”*
**Taste-Overall**7%
*“It tastes like a real candy”*
**Vitamin**5%
*“Good quality vitamin overall”*
**Advertised Vs Actual Product**4%
*“Good product as advertised”*
**Size-Overall**3%
*“FINALLY A REASONABLE SIZE”*
**Joint Pain**3%
*“O er the years I have always recommend this product to person whenever I hear them complain about joint pain”*
**Ease Of Use**2%
*“Easy to use”*
### **What buyers complain about **
**Size-Overall**24%
*“Too big”*
**Ease Of Chewing/Swallowing**13%
*“hard to chew”*
**Calcium**12%
*“Citracal calcium supplement not good”*
**Taste-Overall**7%
*“Now, they only have chocolate, and it is NOT a GOOD chocolate”*
**Dosage**5%
*“Can split the dose”*
**Ingredients-Overall**3%
*“Carcinogenic ingredients”*
**Side Effects**2%
*“I can't attest to how well these help because I can't continue to take them”*
**Value For Money**2%
*“Expensive now”*
**Advertised Vs Actual Product**2%
*“Not the same”*
**Vegan/Organic**1%
*“No longer vegetarian”*
### **Top return reasons **
**Calcium**29%
**Size-Overall**24%
**Certifications**5%
**Advertised Vs Actual Product**5%
**Dosage**5%
**Ease Of Chewing/Swallowing**5%
**Value For Money**5%
**Nutritional Content**5%
**Ingredients-Overall**5%
**Taste-Overall**5%
## **Common questions**
- **Is oscal profitable to sell on Amazon United States?**
- The niche generates $2.7M/yr across 14 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -13.1%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the oscal niche?**
- 3 brands and 46 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in oscal?**
- Top complaints mined from reviews: Size-Overall, Ease Of Chewing/Swallowing, Calcium. The return rate is 0.0%.
- **What does it cost to enter the oscal niche?**
- Listings span $8.30–$37.63; the average listing price is $16.04 (sweet spot $15–$100). The average incumbent carries 8,123 reviews — the moat a new listing must climb.
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