---
title: "Alum — $733K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/alum"
last_updated: "2026-08-09T07:05:37.016Z"
locale: en
meta:
description: "Niche score 55/100 · $733K/yr market · 474K searches/yr. A concentrated shelf (top 5 take 71% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $733K/yr market · 474K searches/yr. A concentrated shelf (top 5 take 71% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Alum — $733K/yr Amazon US Niche (2026) - Flapen"
---
# **alum**
**Worth a look**
Shows low returns (0.1%), but a concentrated shelf (top 5 take 71% of clicks) keeps it on the watch list.
Market size 70Growth 47Conversion 97Competition 24Returns 100Price range 32Avg price 31Brand share 46Review moat 66Quality gap 35
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****15.8%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$733K**
$733K/yr · 474K searches
**Review moat**
**Good****858.42**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+17.4%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****77%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Price range**
**Okay****$4.56–$19.89**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****$9.76**
avg listing price — sweet spot $15–$100
**Competition**
**Bad****71%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, alum is a $733K/yr Amazon United States market (474K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in Jul. Verdict: Worth a look — 55/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **alum market data**
- **Units sold / yr**
- **50K–60K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **$488K–$586K**
- units × avg price
- **Conversion rate**
- **15.8%**
- **Avg BSR**
- **#122**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **92%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **73 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▼falling
**Sellers**
**22**
**Top-5 brand share**
**77%**
Top 20: 100%
**Top-5 click share**
**71%**
Top 20: 100%
**Open market**
**17%**
- McCormick35% - Herbs Botanica21% - MB Herbals8% - Medley Hills Farm7% - Essencea6% - Shudh Online6% - Open — no brand owns it (4 brands, 17%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +17.4% search growth over the last 90 days.
13K8KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/health-household/alum/trend)
## **Top alum search terms**
- **alum**223K/yr+22.4%10.5% conv. - **alum powder**122K/yr+9.2%13.0% conv. - **alum powder for flowers**22K/yr+85.5%14.3% conv. - **potassium alum**15K/yr+36.8%4.4% conv. - **alumbre en polvo**23K/yr-28.7%4.0% conv. - **allum**8K/yr+32.8%9.5% conv. - **alum powder for cut flowers**4K/yr+198.3%12.2% conv. - **alum spice**5K/yr+106.5%21.7% conv. - **alum powder food grade**7K/yr-47.8%10.9% conv. - **potassium alum powder**5K/yr+29.1%10.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/alum/search-terms)
## **Top alum 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%$73K20%$147K30%$220K40%$293K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**McCormick Alum 1.9 oz**McCormick**$4.56**4.6★1,703 rev](https://www.amazon.com/dp/B008KQAS3U) [2**Herbs Botanica Potassium Alum Powder (Fitkari) Pure Granulated Alum for Skin Care Canker Sores Deodorant Alumbre en Polvo Natural Cleansing & Flowers 5.3 oz**Herbs Botanica**$6.76**4.6★705 rev](https://www.amazon.com/dp/B0B8DGRJZP) [3**Herbs Botanica Alum Powder Potassium Alum Fitkari Granulated Powder Natural and Pure 2 oz No Additives Multi-Use Baking & Household Essential Pure**Herbs Botanica**$4.92**4.5★306 rev](https://www.amazon.com/dp/B0DMDJN49S) [4**MB Herbals Alum Powder 100 Gram (3.5 oz) | Deodorant | After Shave | Leather Fabric and Paper Mordant | External Use Only**MB Herbals**$6.92**4.6★1,603 rev](https://www.amazon.com/dp/B08DHJF1F5) [5**Alum Powder Granulated Food Grade 2 lbs. - by Medley Hills Farm in Reusable Container - Granulated Potassium Alum Powder - Made in the USA**Medley Hills Farm**$12.08**4.6★242 rev](https://www.amazon.com/dp/B0DDQGHV5H)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Alum Powder 8 Ounce Resealable Bag Hampton Distribution**Hampton Distribution**$10.06**78 rev10mo ago](https://www.amazon.com/dp/B0FRP8ZVVQ) [**Spice Magic White Alum Powder Food Grade for Pickling & Aftershave 8 oz**SPICE MAGIC THE TASTE OF MAGIC**$7.99**56 rev1y ago](https://www.amazon.com/dp/B0FFT1X4YP) [**Alum Powder for Skin Piedra de Alumbre en Polvo (3.5 oz - 100g) Fitkari Alum Stone for Face Granulado Alumbre para Lavado Intimo Tawas Allum Salt Spice**Shudh Online**$6.63**405 rev1y ago](https://www.amazon.com/dp/B07KNQX4JP) [**Herbs Botanica Alum Powder Potassium Alum Fitkari Granulated Powder Natural and Pure 2 oz No Additives Multi-Use Baking & Household Essential Pure**Herbs Botanica**$4.92**306 rev1y ago](https://www.amazon.com/dp/B0DMDJN49S) [**Alum Powder Granulated Food Grade 2 lbs. - by Medley Hills Farm in Reusable Container - Granulated Potassium Alum Powder - Made in the USA**Medley Hills Farm**$12.08**242 rev1y ago](https://www.amazon.com/dp/B0DDQGHV5H)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Spice Magic White Alum Powder Food Grade for Pickling & Aftershave 8 oz**SPICE MAGIC THE TASTE OF MAGIC**$7.99**4.7★**▲ 96%**](https://www.amazon.com/dp/B0FFT1X4YP) [**Sanniti Premium Alum Powder 32 Ounce | Pickling Essential for Crisp Fruits & Vegetables | Baking Texture Enhancer**Sanniti**$15.91**4.5★**▲ 70%**](https://www.amazon.com/dp/B07YLCS9HY) [**Alum Powder for Skin Piedra de Alumbre en Polvo (3.5 oz - 100g) Fitkari Alum Stone for Face Granulado Alumbre para Lavado Intimo Tawas Allum Salt Spice**Shudh Online**$6.63**4.7★**▲ 68%**](https://www.amazon.com/dp/B07KNQX4JP) [**Alum Stone for Face (3.5 oz - 0.2 lb) Piedra de Alumbre para Lavado Intimo - Natural Fitkari Stone for Shaving - Phitkari Alum Crystal Rocks | Potassium Alum (100g)**Shudh Online**$7.21**4.6★**▲ 41%**](https://www.amazon.com/dp/B07P8BJGGF) [**Alum Powder 8 Ounce Resealable Bag Hampton Distribution**Hampton Distribution**$10.06**4.5★**▲ 27%**](https://www.amazon.com/dp/B0FRP8ZVVQ)
**~~View all trending →~~**
## **What buyers say about alum**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**26%
*“Good quality alum powder”*
**Advertised Vs Actual Product**16%
*“as advertised”*
**Value For Money**8%
*“Great deal”*
**Ease Of Use**7%
*“Easy to use”*
**Efficiency**4%
*“it is very effective”*
**Freshness**3%
*“Keeps me fresh”*
**Crispiness**3%
*“Crispy pickles”*
**Durability**2%
*“The little bag lasts me for months”*
**Color**2%
*“the hydrangeas keep their color”*
**Spiciness**2%
*“Excellent Spice”*
### **What buyers complain about **
**Moist/Dry**18%
*“It had absorbed moisture and was now wet and clumpy”*
**Advertised Vs Actual Product**11%
*“Not what it said it was”*
**Functionality-Overall**9%
*“Didn't work for me”*
**Quality-Overall**6%
*“Trash product”*
**Dilute/Watery**5%
*“This product is either mislead or contaminated, it is not a powder so much as a bag of wet, discolored clumps, with a heavy chemical smell”*
**Size-Overall**5%
*“Very big rocks”*
**Chunk/Clump/Collection**5%
*“Wet, brown, and clumpy”*
**Ingredients-Overall**5%
*“other particles mixed in”*
**Value For Money**4%
*“It is a little expensive for the small quantity”*
**Smell**4%
*“it doesnt smell AT ALL”*
### **Top return reasons **
**Size-Overall**38%
**Advertised Vs Actual Product**21%
**Functionality-Overall**15%
**Defective Material/Parts**8%
**Smell**4%
**Value For Money**3%
**Ease Of Use**2%
**Quality-Overall**2%
**Ingredients-Overall**2%
**Durability**2%
## **Common questions**
- **Is alum profitable to sell on Amazon United States?**
- The niche generates $733K/yr across 12 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +17.4%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the alum niche?**
- 10 brands and 22 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 77% of demand.
- **What do buyers complain about in alum?**
- Top complaints mined from reviews: Moist/Dry, Advertised Vs Actual Product, Functionality-Overall. The return rate is 0.1%.
- **When does demand for alum peak?**
- Demand peaks in Jul; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the alum niche?**
- Listings span $4.56–$19.89; the average listing price is $9.76 (sweet spot $15–$100). The average incumbent carries 858 reviews — the moat a new listing must climb.
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