---
title: "Phentermine — $265K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/phentermine"
last_updated: "2026-08-10T12:19:30.321Z"
locale: en
meta:
description: "Niche score 50/100 · $265K/yr market · 574K searches/yr · $36.31 avg price. Soft demand (-18.3% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $265K/yr market · 574K searches/yr · $36.31 avg price. Soft demand (-18.3% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Phentermine — $265K/yr Amazon US Niche (2026) - Flapen"
---
# **phentermine**
**Worth a look**
Shows low returns (0.1%), but soft demand (-18.3% this quarter) keeps it on the watch list.
Market size 49Growth 16Conversion 16Competition 24Returns 100Price range 94Avg price 95Brand share 51Review moat 22Quality gap 97
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Quality gap**
**Incredible****3.8★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Incredible****$36.31**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$14.65–$69.79**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$265K**
$265K/yr · 574K searches
**Competition**
**Bad****72%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****10,183.19**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-18.3%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****1.3%**
search→purchase rate — share of searches ending in a sale
**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0")
According to Flapen's Amazon United States niche tracking, phentermine is a $265K/yr Amazon United States market (574K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Feb. Verdict: Worth a look — 50/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **phentermine market data**
- **Units sold / yr**
- **6K–8K**
- avg 500–750/product
- **Revenue / yr**
- **$218K–$290K**
- units × avg price
- **Conversion rate**
- **1.3%**
- **Avg BSR**
- **#759**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **75%**
- **Out of stock**
- **2.1%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **149 days**
## **Competition & brand share**
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**13 **▲rising
**Sellers**
**42**
**Top-5 brand share**
**74%**
Top 20: 98%
**Top-5 click share**
**72%**
Top 20: 100%
**Open market**
**21%**
- PhenAprin35% - PhenQ18% - Vitamart9% - Generic7% - Phenelite6% - KAKA DR5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -18.3% search growth over the last 90 days.
30K20KHoliday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/us/health-household/phentermine/trend)
## **Top phentermine search terms**
- **phentermine**307K/yr-17.8%0.7% conv. - **phenq**55K/yr-23.6%1.4% conv. - **fentermina**45K/yr-6.0%0.3% conv. - **fentermina para bajar de peso**45K/yr+32.6%0.4% conv. - **phenaprin**18K/yr-27.4%4.6% conv. - **phen q**18K/yr-30.5%1.3% conv. - **phenetrine**13K/yr+1.6%0.8% conv. - **phentermine for weight loss**15K/yr-49.9%0.5% conv. - **phenq appetite suppressant**3K/yr+159.6%2.3% conv. - **phentermine weight loss pills for women**17K/yr-53.9%0.2% conv. [**All search terms **](https://flapen.com/research/us/health-household/phentermine/search-terms)
## **Top phentermine 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%$26K20%$53K30%$79K40%$106K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**PhenAprin Advanced Diet Pills for Weight Loss & Energy - Powerful Appetite Suppressant & Thermogenic Fat Burner for Men & Women - Metabolism Booster Food Noise & Cravings Support - 60 Tablets**PhenAprin**$39.94**3.4★14,048 rev](https://www.amazon.com/dp/B07S92X275) [2**PhenQ Weight Loss Pills Supplement That Work Fast Suppress Appetite Boost Energy & Metabolism Appetite Suppressant Fat Burner Tablets for Men & Women Safe & Effective**PhenQ**$69.79**3.1★34 rev](https://www.amazon.com/dp/B0F225RTKG) [3**Phent37 (1 Bottle - 60 Speckled Tablets) - Advanced Phenylethylamine HCL Dietary Nutraceutical Premium Small White and Blue Tablets Boost Metabolism Weight Management for Men and Women**Vitamart**$29.14**3.2★323 rev](https://www.amazon.com/dp/B0DRGWLTR4) [4**Phen.emine Elite 37.5 Fast-Acting Formula 60 Tablets**Generic**$59.16**3.6★73 rev](https://www.amazon.com/dp/B0FKBMWYCJ) [5**Phenelite Fat Burner for Women - Weight Loss Support and Diet Pills for Helping Reduce Belly Fat - Supplement Made of Raspberry Ketones and Premier Plant Extracts - Appetite Suppressant Vegan**Phenelite**$14.65**3.5★4,914 rev](https://www.amazon.com/dp/B07DJMN3VR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Performacal Phenylmine XR Weight Management - Energy Appetite & Metabolic Support Formula for Men & Women - 60 Capsules (1)**Performacal**$20.10**2 rev1mo ago](https://www.amazon.com/dp/B0H1SXVQR1) [**KAKA DR GLP-1 Supplement Appetite Suppressant Weight Loss Pills for Women New Belly Fat Burner for Women | Metabolism Booster Carb Blocker Burn Fat 24/7 | 3rd Party Tested - 60 Pills**KAKA DR**$36.75**175 rev6mo ago](https://www.amazon.com/dp/B0GD1FSLBY) [**KAKA DR GLP-1 Supplement Weight Loss Pills for Women Appetite Suppressant for Women and Men Metabolism Booster 3rd Party Tested Supplement Made from a Variety of Natural Ingredients - 60 Pills**KAKA DR**$32.11**88 rev7mo ago](https://www.amazon.com/dp/B0G57HN2F4) [**PhenQ Weight Loss Pills Supplement That Work Fast Suppress Appetite Boost Energy & Metabolism Appetite Suppressant Fat Burner Tablets for Men & Women Safe & Effective**PhenQ**$69.79**34 rev1y ago](https://www.amazon.com/dp/B0F225RTKG) [**Phent37 (1 Bottle - 60 Speckled Tablets) - Advanced Phenylethylamine HCL Dietary Nutraceutical Premium Small White and Blue Tablets Boost Metabolism Weight Management for Men and Women**Vitamart**$29.14**323 rev1y ago](https://www.amazon.com/dp/B0DRGWLTR4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Performacal Phenylmine XR Weight Management - Energy Appetite & Metabolic Support Formula for Men & Women - 60 Capsules (1)**Performacal**$20.10**5.0★**▲ 303%**](https://www.amazon.com/dp/B0H1SXVQR1) [**KAKA DR GLP-1 Supplement Appetite Suppressant Weight Loss Pills for Women New Belly Fat Burner for Women | Metabolism Booster Carb Blocker Burn Fat 24/7 | 3rd Party Tested - 60 Pills**KAKA DR**$36.75**4.1★**▲ 302%**](https://www.amazon.com/dp/B0GD1FSLBY) [**Womens High Waisted Distressed Stretch Ripped Butt Lift Denim Pants Blue Size 16**Qazel Vorrlon**$32.81**4.2★**▲ 293%**](https://www.amazon.com/dp/B09YD1KF33) [**GLP-1 Supplement for Women 3X Targeted Formula Gentle on the Stomach GLP-1 with Akkermansia Probiotic Berberine HCI & Chicory Inulin Natural GLP1 for Digestion & Gut Health - Vegan 60 Capsules**Todesessis**$26.89**4.2★**▲ 248%**](https://www.amazon.com/dp/B0DQW6Q38R) [**Stacker 3 XPLC by NVE Pharmaceuticals**--**$18.23**4.5★**▲ 86%**](https://www.amazon.com/dp/B01LZKFMZK)
**~~View all trending →~~**
## **What buyers say about phentermine**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Weight Loss**25%
*“Great for weight loss”*
**Quality-Overall**9%
*“My personal experience has been satisfactory”*
**Energy Level**9%
*“Boosts energy”*
**Nutritional Content**7%
*“Excellent dietary supplement”*
**Side Effects**5%
*“It didn't cause me any jitters or severe side effects—something I value highly in products of this type”*
**Regulates Digestion**4%
*“Works as remedy for intermittent constipation”*
**Value For Money**4%
*“Great value for the money”*
**Ease Of Use**4%
*“Easy to use”*
**Efficiency**3%
*“Its a clean”*
**Ease Of Chewing/Swallowing**3%
*“They are not hard to swallow”*
### **What buyers complain about **
**Functionality-Overall**22%
*“Doest Work”*
**Weight Loss**16%
*“Certainly does not control my appetite”*
**Side Effects**10%
*“I suddenly became very nauseous”*
**Value For Money**6%
*“Also way too expensive”*
**Nutritional Content**5%
*“Didn't curb my appetite”*
**Acid Regulator/Stomach Ache Relief**4%
*“Hurt stomach”*
**Energy Level**3%
*“No energy”*
**Dosage**3%
*“these pills didnt work for me”*
**Heart Health**2%
*“I experienced an accelerated heart rate”*
**Regulates Digestion**2%
*“Painful constipation”*
### **Top return reasons **
**Functionality-Overall**24%
**Size-Overall**18%
**Waist Fit**18%
**Dosage**12%
**Side Effects**9%
**Value For Money**6%
**Comfort-Overall**6%
**Length**6%
**Fever Relief**3%
## **Common questions**
- **Is phentermine profitable to sell on Amazon United States?**
- The niche generates $265K/yr across 16 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -18.3%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the phentermine niche?**
- 13 brands and 42 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 74% of demand.
- **What do buyers complain about in phentermine?**
- Top complaints mined from reviews: Functionality-Overall, Weight Loss, Side Effects. The return rate is 0.1%.
- **When does demand for phentermine peak?**
- Demand peaks in Feb; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the phentermine niche?**
- Listings span $14.65–$69.79; the average listing price is $36.31 (sweet spot $15–$100). The average incumbent carries 10,183 reviews — the moat a new listing must climb.
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