---
title: "Prolon — $277K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/prolon"
last_updated: "2026-08-11T16:08:54.960Z"
locale: en
meta:
description: "Niche score 52/100 · $277K/yr market · 187K searches/yr · $46.12 avg price. Soft demand (-27.7% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $277K/yr market · 187K searches/yr · $46.12 avg price. Soft demand (-27.7% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Prolon — $277K/yr Amazon US Niche (2026) - Flapen"
---
# **prolon**
**Worth a look**
Shows low returns (0.0%), but soft demand (-27.7% this quarter) keeps it on the watch list.
Market size 50Growth 11Conversion 40Competition 46Returns 100Price range 45Avg price 95Brand share 56Review moat 44Quality gap 72
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$46.12**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****71%**
top-5 brand share — brands hold most of the demand
**Market size**
**Good****$277K**
$277K/yr · 187K searches
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Price range**
**Okay****$12.98–$200.94**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Okay****2,070.11**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****3.2%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-27.7%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, prolon is a $277K/yr Amazon United States market (187K searches/yr). The top 5 brands hold 71% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **prolon market data**
- **Units sold / yr**
- **5K–6K**
- avg 250–500/product
- **Revenue / yr**
- **$231K–$277K**
- units × avg price
- **Conversion rate**
- **3.2%**
- **Avg BSR**
- **#208**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **95%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **53 months**
- **Avg seller age**
- **137 days**
## **Competition & brand share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▼falling
**Sellers**
**19**
**Top-5 brand share**
**71%**
Top 20: 100%
**Top-5 click share**
**57%**
Top 20: 100%
**Open market**
**24%**
- Ultima Replenisher36% - FAST LYTE11% - Prolon10% - FAST:RX8% - FSTN7% - NUTRAHARMONY5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -27.7% search growth over the last 90 days.
8K6KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/health-household/prolon/trend)
## **Top prolon search terms**
- **fasting**120K/yr-34.9%0.8% conv. - **fasting supplement**29K/yr-18.1%2.5% conv. - **ultima crave killer**10K/yr-24.5%10.2% conv. - **fasting drink**7K/yr+15.6%2.3% conv. - **fasting supplements**8K/yr+40.8%2.6% conv. - **crave killer**3K/yr-31.7%5.5% conv. - **ultima crave killer electrolytes**4K/yr-39.6%10.7% conv. - **intermittent fasting drink**4K/yr+34.5%0.5% conv. - **bondi pure fasting drink**2K/yr-57.7%0.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/prolon/search-terms)
## **Top prolon 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%$28K20%$55K30%$83K40%$111K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Ultima Replenisher Crave Killer Supplement and Electrolytes Powder Tropical Fusion 14 Stickpacks Hydration Packets that Kick Cravings to The Curb**Ultima Replenisher**$22.11**4.5★859 rev](https://www.amazon.com/dp/B0DB6PRWH6) [2**Fast Lyte Fasting Electrolyte Supplement Powder | No Sugar Unflavored Raw Electrolytes | 25% RDI Magnesium and Potassium with Trace Minerals | Carnivore & Keto Friendly | Sugar Free Fasting Salts**FAST LYTE**$39.49**4.5★1,206 rev](https://www.amazon.com/dp/B0BDLT1HFM) [3**FSTN Chocolate Electrolytes Fasting Supplement Crave Killer Hydration & Energy Zero-Sugar Plus Ketones & Organic Cocoa.**FSTN**$41.53**4.3★120 rev](https://www.amazon.com/dp/B0DGN5D8Y2) [4**FAST:RX Fasting Electrolyte Drink | Zero Sugar Zero Calorie Hydration with Vitamins & Minerals | Intermittent Fasting & Keto | Lemon | Sparkling | 16oz 12-Pack**FAST:RX**$35.59**4.2★133 rev](https://www.amazon.com/dp/B0BTCKG7T4) [5**Ultima Replenisher Daily Electrolyte Powder Original Variety Pack 20 Stickpacks Zero Sugar Hydration Packets with 6 Electrolytes and Minerals Sugar Free Plant Based & Keto Friendly Drink Mix**Ultima Replenisher**$20.18**4.6★20,397 rev](https://www.amazon.com/dp/B08XQZX9K3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**1-Day Juice Fasting Collagen & Sustained Energy Pack | Ancient Remedies for Gentle Detox Metabolism Boost | Prebiotics & Minerals Antioxidants | Low Sugar | Organic 612 fl oz BPA-Free Bottles**KARVIVA**$34.45**59 rev1y ago](https://www.amazon.com/dp/B0F4XQTQGZ) [**The Good Intentions Club Fasting Electrolytes - Unflavored Electrolyte Powder - 100 Servings - Fasting Salts - Fasting Supplement - Electrolytes for Fasting**The Good Intentions Club**$23.02**256 rev1y ago](https://www.amazon.com/dp/B0DRC6PYVP) [**FSTN Chocolate Electrolytes Fasting Supplement Crave Killer Hydration & Energy Zero-Sugar Plus Ketones & Organic Cocoa.**FSTN**$41.53**120 rev1y ago](https://www.amazon.com/dp/B0DGN5D8Y2) [**Ultima Replenisher Crave Killer Supplement and Electrolytes Powder Tropical Fusion 14 Stickpacks Hydration Packets that Kick Cravings to The Curb**Ultima Replenisher**$22.11**859 rev1y ago](https://www.amazon.com/dp/B0DB6PRWH6) [**Enzymedica Fasting Today Drink Mix - Electrolyte Powder Supplement for Intermittent Fasting Support for Hydration Appetite & Muscle Health Keto Friendly Tropical Pineapple Flavor - 8.75 oz**Enzymedica**$26.66**238 rev2y ago](https://www.amazon.com/dp/B0CR1TT9FJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**1-Day Juice Fasting Collagen & Sustained Energy Pack | Ancient Remedies for Gentle Detox Metabolism Boost | Prebiotics & Minerals Antioxidants | Low Sugar | Organic 612 fl oz BPA-Free Bottles**KARVIVA**$34.45**4.3★**▲ 222%**](https://www.amazon.com/dp/B0F4XQTQGZ) [**Hi-Lyte Electrolytes for Fasting Immune Support and Rapid Hydration | 48 Servings | NO Calories NO Sugar | 20%+ More Potassium Magnesium & Zinc**Hi-Lyte**$20.29**4.3★**▲ 69%**](https://www.amazon.com/dp/B01MXDAHIB) [**FAST LYTE No Sugar Electrolytes Powder in the Raw | Mix in Coffee Soup Juice Water Smoothies Broth Anything | No Sweeteners or Flavorings | Keto & Sugar Free | Non-GMO & Vegan**FAST LYTE**$29.18**4.6★**▲ 58%**](https://www.amazon.com/dp/B0CQMS2SH1) [**Prolon 5 Day Fasting Kit | Fasting Program for Women & Men | Developed to Not Break Your Fast | Low Calorie Pre Made Meals & Snacks | Plant Based Ingredients for Diet Support | Classic Flavors**Prolon**$200.94**3.8★**▲ 57%**](https://www.amazon.com/dp/B07KXZ9JX1) [**MYOXCIENCE Berberine Fasting Accelerator | Himaberb Berberine HCL with ALA (Alpha Lipoic Acid) and Biotin (90 Capsules)**MYOXCIENCE**$30.30**4.4★**▲ 45%**](https://www.amazon.com/dp/B0BNT5HJ5Y)
**~~View all trending →~~**
## **What buyers say about prolon**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**23%
*“Taste great, arrived on time”*
**Flavor**16%
*“variety of flavors”*
**Quality-Overall**9%
*“Super cheap for the quality”*
**Moist/Dry**5%
*“Helps in hydration”*
**Solubility**3%
*“Dissolves easily”*
**Value For Money**3%
*“Good value for the money”*
**Advertised Vs Actual Product**3%
*“As described”*
**Ease Of Use**3%
*“Very easy to make”*
**Salt Content**3%
*“not too salty”*
**Nutritional Content**2%
*“helps my body stay healthy”*
### **What buyers complain about **
**Taste-Overall**18%
*“Artificial taste”*
**Flavor**10%
*“Bad flavor”*
**Salt Content**7%
*“just a bit salty”*
**Value For Money**5%
*“Too expensive”*
**Sweetness**4%
*“has a weird sweet taste”*
**Ease Of Chewing/Swallowing**2%
*“Cant swallow”*
**Artificial Sweeteners**2%
*“Im pretty sensitive to artificial sweetener”*
**Side Effects**2%
*“Makes you sick”*
**Functionality-Overall**2%
*“Doesn't work”*
**Quality-Overall**1%
*“No quality control”*
### **Top return reasons **
**Taste-Overall**18%
**Advertised Vs Actual Product**18%
**Leak-Proof**18%
**Flavor**18%
**Nutritional Content**9%
**Ingredients-Overall**9%
**Value For Money**9%
## **Common questions**
- **Is prolon profitable to sell on Amazon United States?**
- The niche generates $277K/yr across 19 tracked products. 90-day search growth is -27.7%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the prolon niche?**
- 14 brands and 19 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 71% of demand.
- **What do buyers complain about in prolon?**
- Top complaints mined from reviews: Taste-Overall, Flavor, Salt Content. The return rate is 0.0%.
- **When does demand for prolon peak?**
- Demand is steady year-round — the busiest month runs 1.7× the quietest.
- **What does it cost to enter the prolon niche?**
- Listings span $12.98–$200.94; the average listing price is $46.12 (sweet spot $15–$100). The average incumbent carries 2,070 reviews — the moat a new listing must climb.
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