---
title: "Sp-7 Probiotic Whitening Toothpaste — $4K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/sp-7-probiotic-whitening-toothpaste"
last_updated: "2026-08-11T02:42:56.246Z"
locale: en
meta:
description: "Niche score 34/100 · $4K/yr market · 4K searches/yr · $44.14 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 34/100 · $4K/yr market · 4K searches/yr · $44.14 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Sp-7 Probiotic Whitening Toothpaste — $4K/yr Amazon US Niche (2026) - Flapen"
---
# **sp-7 probiotic whitening toothpaste**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 1Growth 15Conversion 24Competition 15Returns 98Price range 93Avg price 95Brand share 0Review moat 72Quality gap 38
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$44.14**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$12.39–$97.79**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****603.56**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Bad****1.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-19.0%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****82%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$4K**
$4K/yr · 4K searches
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, sp-7 probiotic whitening toothpaste is a $4K/yr Amazon United States market (4K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Feb–Sep. Verdict: Skip it — 34/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sp-7 probiotic whitening toothpaste market data**
- **Units sold / yr**
- **100–250**
- avg 0–100/product
- **Revenue / yr**
- **$4K–$11K**
- units × avg price
- **Conversion rate**
- **1.9%**
- **Avg BSR**
- **#624**
- **Page quality**
- **0%**
- **Prime**
- **89%**
- **Sponsored**
- **67%**
- **Out of stock**
- **2.6%**
- **Avg brand age**
- **20 months**
- **Avg seller age**
- **230 days**
## **Competition & brand share**
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **—flat
**Sellers**
**7**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**82%**
Top 20: 100%
**Open market**
**0%**
- Fairtex60% - MSDRWIKEY23% - KLOUYHTY8% - Hymhzy5% - OHZH4% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 96 weeks — -19.0% search growth over the last 90 days.
500300Spike '24Spike '25Black Friday '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Feb, Sep · busiest ÷ quietest = 2.4×
[**Open Trend **](https://flapen.com/research/us/health-household/sp-7-probiotic-whitening-toothpaste/trend)
## **Top sp-7 probiotic whitening toothpaste search terms**
- **sp7**2K/yr+0.7%0.7% conv. - **sp7 toothpaste**2K/yr-37.7%4.5% conv. - **sp7 probiotic toothpaste whitening**414/yr-54.5%5.0% conv. - **sp-7 probiotic whitening toothpaste**41/yr-64.3%0.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/sp-7-probiotic-whitening-toothpaste/search-terms)
## **Top sp-7 probiotic whitening toothpaste 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%$37920%$75730%$1K40%$2K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Fairtex SP7 Muay Thai Shin Guards for Men Women Kids | Shinguards Made with Syntek Leather & are Premium Lightweight & Durable | Detachable shin & Foot Protector- Large Black**Fairtex**$97.79**4.7★806 rev](https://www.amazon.com/dp/B07G9NYG78) [2**MSDRWIKEY 2-Pack Popping 7-Pro Whitening Toothpaste | Deep Whitening & 7 Probiotics for Oral Health | Purple Beads for Extra Freshness | Fluoride-Free**MSDRWIKEY**$16.64**4.2★697 rev](https://www.amazon.com/dp/B0F6N37XFK) [3**Fairtex SP7 Muay Thai Shin Guards for Men Women Kids | Shinguards Made with Syntek Leather & are Premium Lightweight & Durable | Detachable shin & Foot Protector- Large White**Fairtex**$97.58**4.7★806 rev](https://www.amazon.com/dp/B00RDZGKZO) [4**Sp-7 Probiotic Toothpaste Probiotic Toothpaste Sp7 Super Probiotic Toothpaste Sp7 Toothpaste Deep Cleaning Toothpaste Fresh Breath Toothpaste (3pcs)**KLOUYHTY**$20.77**5.0★1 rev](https://www.amazon.com/dp/B0D7CGSM8R) [5**Fairtex SP7 Muay Thai Shin Guards for Men Women Kids | Shinguards Made with Syntek Leather & are Premium Lightweight & Durable | Detachable shin & Foot Protector- Medium White**Fairtex**$96.81**4.7★806 rev](https://www.amazon.com/dp/B00RDZGKY0)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**MSDRWIKEY 2-Pack Popping 7-Pro Whitening Toothpaste | Deep Whitening & 7 Probiotics for Oral Health | Purple Beads for Extra Freshness | Fluoride-Free**MSDRWIKEY**$16.64**697 rev1y ago](https://www.amazon.com/dp/B0F6N37XFK) [**MSDRWIKEY Popping 7Pro Deep Whitening Toothpaste with 7 Probiotics - Advanced Formula for Stain Removal and Gum Health - Fluoride-Free Enamel-Safe Fresh Mint Flavor 4.23 oz (3)**MSDRWIKEY**$21.71**697 rev1y ago](https://www.amazon.com/dp/B0F6JK1SVM) [**SP-6 Probiotics Whitening Toothpaste - Probiotics for Teeth Whitening and Gum Health - Enamel-Safe Fluoride-Free Double Mint Flavor Fresh Breath (3PCS)**OHZH**$17.23**225 rev1y ago](https://www.amazon.com/dp/B0F5H9NW2F) [**Sp-6 Probiotic Whitening Toothpaste Sp-6 Ultra Whitening Toothpaste with a Fluoride Free Fresh Breath and Mint Flavored Enhancement Formula Beneficial for Oral Health! 2pc (2)**Hymhzy**$12.39**145 rev1y ago](https://www.amazon.com/dp/B0F8PCQ8CP) [**MSDRWIKEY SP-6 Probiotic Whitening Toothpaste - Enhanced Formula with 6 Probiotics for Teeth Whitening and Gum Health - Enamel-Safe Fluoride-Free Fresh Mint Flavor 4.6oz (2)**MSDRWIKEY**$16.31**1,249 rev1y ago](https://www.amazon.com/dp/B0F6CZSND6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Fairtex SP7 Muay Thai Shin Guards for Men Women Kids | Shinguards Made with Syntek Leather & are Premium Lightweight & Durable | Detachable shin & Foot Protector- Medium White**Fairtex**$96.81**4.7★**▲ 162%**](https://www.amazon.com/dp/B00RDZGKY0) [**Fairtex SP7 Muay Thai Shin Guards for Men Women Kids | Shinguards Made with Syntek Leather & are Premium Lightweight & Durable | Detachable shin & Foot Protector- Large White**Fairtex**$97.58**4.7★**▲ 117%**](https://www.amazon.com/dp/B00RDZGKZO) [**Fairtex SP7 Muay Thai Shin Guards for Men Women Kids | Shinguards Made with Syntek Leather & are Premium Lightweight & Durable | Detachable shin & Foot Protector- Large Black**Fairtex**$97.79**4.7★**▲ 66%**](https://www.amazon.com/dp/B07G9NYG78) [**SP-6 Probiotics Whitening Toothpaste - Probiotics for Teeth Whitening and Gum Health - Enamel-Safe Fluoride-Free Double Mint Flavor Fresh Breath (3PCS)**OHZH**$17.23**4.4★**▲ 61%**](https://www.amazon.com/dp/B0F5H9NW2F) [**Sp-7 Probiotic Toothpaste Probiotic Toothpaste Sp7 Super Probiotic Toothpaste Sp7 Toothpaste Deep Cleaning Toothpaste Fresh Breath Toothpaste (3pcs)**KLOUYHTY**$20.77**5.0★**▼ 24%**](https://www.amazon.com/dp/B0D7CGSM8R)
**~~View all trending →~~**
## **What buyers say about sp-7 probiotic whitening toothpaste**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Tooth Brightening**25%
*“Whitening the teeths”*
**Quality-Overall**24%
*“Quality product”*
**Value For Money**8%
*“Excellent product at a fair price”*
**Breathability**7%
*“provides fresh breath”*
**Brightness/Shine/Glow**6%
*“Bright smile”*
**Ease Of Cleaning**5%
*“Clean”*
**Cleansing**5%
*“leaves a clean sensation for hours”*
**Advertised Vs Actual Product**4%
*“have to say that it comes up to its expectations”*
**Smell**3%
*“smells nice”*
**Efficiency**3%
*“Works good”*
### **What buyers complain about **
**Functionality-Overall**45%
*“Does not work”*
**Advertised Vs Actual Product**18%
*“Is that the beginning or the end of the false advertising”*
**Value For Money**18%
*“A little expensive for what it claims to do”*
**Color**18%
*“my teeth were pretty yellow not gonna lie”*
### **Top return reasons **
**Size-Overall**39%
**Advertised Vs Actual Product**22%
**Functionality-Overall**11%
**Ingredients-Overall**4%
**Defective Material/Parts**4%
**Comfort-Overall**3%
**Brightness/Shine/Glow**3%
**Value For Money**3%
**Thigh Fit**2%
**Smell**2%
## **Common questions**
- **Is sp-7 probiotic whitening toothpaste profitable to sell on Amazon United States?**
- The niche generates $4K/yr across 9 tracked products. 90-day search growth is -19.0%. Flapen's verdict: Skip it (34/100).
- **How competitive is the sp-7 probiotic whitening toothpaste niche?**
- 5 brands and 7 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in sp-7 probiotic whitening toothpaste?**
- Top complaints mined from reviews: Functionality-Overall, Advertised Vs Actual Product, Value For Money. The return rate is 0.4%.
- **When does demand for sp-7 probiotic whitening toothpaste peak?**
- Demand peaks in Feb–Sep; the busiest month runs 2.4× the quietest.
- **What does it cost to enter the sp-7 probiotic whitening toothpaste niche?**
- Listings span $12.39–$97.79; the average listing price is $44.14 (sweet spot $15–$100). The average incumbent carries 604 reviews — the moat a new listing must climb.
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