---
title: "muscle builder for men — Niche Verdict: Worth a look (55/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/health-household/muscle-builder-for-men"
last_updated: "2026-07-14T03:01:12.734Z"
locale: en
meta:
  description: "muscle builder for men shows low returns (0.0%), but soft demand (-11.6% this quarter) keeps it on the watch list."
  "og:description": "muscle builder for men shows low returns (0.0%), but soft demand (-11.6% this quarter) keeps it on the watch list."
  "og:title": "muscle builder for men — Niche Verdict: Worth a look (55/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **muscle builder for men**

**Worth a look**

Shows low returns (0.0%), but soft demand (-11.6% this quarter) keeps it on the watch list.

Market size 54Growth 19Conversion 32Competition 55Returns 100Price range 83Avg price 95Brand share 57Review moat 20Quality gap 67

**Returns**

**Incredible****0.0%**

return rate — above 6% kills the launch gate

**Avg price**

**Incredible****$31.72**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$3.47–$79.20**

cheapest to priciest tracked listing — scored on the share inside $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

**Competition**

**Good****52%**

top-5 click share — leaders hold, buyers still browse

**Market size**

**Good****$357K**

$357K/yr · 438K searches

**Conversion**

**Okay****2.6%**

search→purchase rate — share of searches ending in a sale

**Review moat**

**Bad****14,107.92**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Bad****-11.6%**

90-day search growth — must beat 0% to launch

## **Competition**

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**19 **▼falling

**Sellers**

**75**

**Top-5 brand share**

**71%**

**Open market**

**23%**

- MuscleTech30% - Jacked Factory14% - Nutrex Research10% - Prime Labs8% - UNALTERED8% - Nutricost6%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%5%$18K10%$36K15%$54K20%$71K101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 26 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Muscletech HMB Supplements 1000mg Clear Muscle (42 Liquid Softgels) - Highest Grade HMB for Lean Muscle & Recovery-HMB Free Acid Muscle Supplement-Help Decrease Muscle Breakdown - Packaging May Vary](https://m.media-amazon.com/images/I/41553B1S4CL.jpg)**Muscletech HMB Supplements 1000mg Clear Muscle (42 Liquid Softgels) - Highest Grade HMB for Lean Muscle & Recovery-HMB Free Acid Muscle Supplement-Help Decrease Muscle Breakdown - Packaging May Vary**MuscleTech**$19.30**4.4★3,400 rev](https://www.amazon.com/dp/B07YNGFFDT) [2![Nutrex Research Anabol Hardcore Anabolic Activator Muscle Builder and Hardening Agent 60 Pills Fast Acting Liquid Capsules - 1 Month Supply](https://m.media-amazon.com/images/I/41E8R35BtOL.jpg)**Nutrex Research Anabol Hardcore Anabolic Activator Muscle Builder and Hardening Agent 60 Pills Fast Acting Liquid Capsules - 1 Month Supply**Nutrex Research**$37.07**4.3★5,308 rev](https://www.amazon.com/dp/B087XBNVG5) [3![Prime Labs - Mens Testosterone Booster - Stamina Endurance & Strength Booster - 60 Caplets](https://m.media-amazon.com/images/I/41NYwwxnB5L.jpg)**Prime Labs - Mens Testosterone Booster - Stamina Endurance & Strength Booster - 60 Caplets**Prime Labs**$21.93**4.1★95,166 rev](https://www.amazon.com/dp/B01MQ1JLWY) [4![UNALTERED Anabolic Muscle Builder for Men - Growth Size Strength - Natural Muscle Building Supplement & Energy Booster - Tribulus Terrestris Ginseng Vitamin D3 Ashwagandha - 150 Capsules](https://m.media-amazon.com/images/I/41PX4pX802L.jpg)**UNALTERED Anabolic Muscle Builder for Men - Growth Size Strength - Natural Muscle Building Supplement & Energy Booster - Tribulus Terrestris Ginseng Vitamin D3 Ashwagandha - 150 Capsules**UNALTERED**$46.89**4.4★2,339 rev](https://www.amazon.com/dp/B08YZ8V76M) [5![Muscletech Nitric Oxide Supplements for Men & Women Muscle Builder (60 Capsules) - Nitric Oxide Booster Supplement Supports Muscle Gain & Performance - 400mg Peak ATP for Enhanced Strength](https://m.media-amazon.com/images/I/41gYaM+hgxL.jpg)**Muscletech Nitric Oxide Supplements for Men & Women Muscle Builder (60 Capsules) - Nitric Oxide Booster Supplement Supports Muscle Gain & Performance - 400mg Peak ATP for Enhanced Strength**MuscleTech**$34.29**4.4★5,716 rev](https://www.amazon.com/dp/B0BDHF2KK4)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![NutraBio Growth Peptides |Muscle Accelerator with DiLeucine & PeptiStrong | Peptides for Muscle Growth Men & Women- 28 Servings- 196 Capsules](https://m.media-amazon.com/images/I/414WDQ1KI8L.jpg)**NutraBio Growth Peptides |Muscle Accelerator with DiLeucine & PeptiStrong | Peptides for Muscle Growth Men & Women- 28 Servings- 196 Capsules**NutraBio**$79.20**81 rev10mo ago](https://www.amazon.com/dp/B0FQCMHJ8W) [![3-AD Black Series - Patented Adrenal Metabolite for Muscle Strength Density & Performance - Hardcore Muscle Support - 60 Capsules](https://m.media-amazon.com/images/I/419fwCIQqVL.jpg)**3-AD Black Series - Patented Adrenal Metabolite for Muscle Strength Density & Performance - Hardcore Muscle Support - 60 Capsules**3AD LLC**$75.33**39 rev11mo ago](https://www.amazon.com/dp/B0FK376VNJ) [![STRIVLABS Peak Potential 12-in-1 Testosterone Support for Men Fenugreek Ashwagandha & Tongkat Ali Natural Strength Energy & Muscle Builder 90 Capsules](https://m.media-amazon.com/images/I/4145sjSQgXL.jpg)**STRIVLABS Peak Potential 12-in-1 Testosterone Support for Men Fenugreek Ashwagandha & Tongkat Ali Natural Strength Energy & Muscle Builder 90 Capsules**STRIVLABS**$39.61**623 rev1y ago](https://www.amazon.com/dp/B0DQVRW3T6) [![Testosterone Supplement for Men for Muscle Growth Stamina & Performance | Testosterone Booster Muscle Builder for Men | Test Boost Max with Tongat Ali | Test Booster & Male Enhancement | 60 Gummies](https://m.media-amazon.com/images/I/51Oaew33nHL.jpg)**Testosterone Supplement for Men for Muscle Growth Stamina & Performance | Testosterone Booster Muscle Builder for Men | Test Boost Max with Tongat Ali | Test Booster & Male Enhancement | 60 Gummies**Nobi Nutrition**$12.90**7,627 rev2y ago](https://www.amazon.com/dp/B0CRCJ4H2X) [![Nutrex Research Anabol Ripped Anabolic 2 in 1 Muscle Builder for Men Muscle Growth Supplements Shredding Formula Recovery Thermogenic Support Lean Physique 60 Count](https://m.media-amazon.com/images/I/41am+OoFoqL.jpg)**Nutrex Research Anabol Ripped Anabolic 2 in 1 Muscle Builder for Men Muscle Growth Supplements Shredding Formula Recovery Thermogenic Support Lean Physique 60 Count**Nutrex Research**$38.70**601 rev2y ago](https://www.amazon.com/dp/B0CT66FPRP)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Testosterone Supplement for Men for Muscle Growth Stamina & Performance | Testosterone Booster Muscle Builder for Men | Test Boost Max with Tongat Ali | Test Booster & Male Enhancement | 60 Gummies](https://m.media-amazon.com/images/I/51Oaew33nHL.jpg)**Testosterone Supplement for Men for Muscle Growth Stamina & Performance | Testosterone Booster Muscle Builder for Men | Test Boost Max with Tongat Ali | Test Booster & Male Enhancement | 60 Gummies**Nobi Nutrition**$12.90**4.1★**▲ 174%**](https://www.amazon.com/dp/B0CRCJ4H2X) [![3-AD Black Series - Patented Adrenal Metabolite for Muscle Strength Density & Performance - Hardcore Muscle Support - 60 Capsules](https://m.media-amazon.com/images/I/419fwCIQqVL.jpg)**3-AD Black Series - Patented Adrenal Metabolite for Muscle Strength Density & Performance - Hardcore Muscle Support - 60 Capsules**3AD LLC**$75.33**3.9★**▲ 162%**](https://www.amazon.com/dp/B0FK376VNJ) [![MuscleTech Creatine Monohydrate Powder Platinum Pure - Unflavored Micronized Creatine for Men & Women - Workout Supplements for Performance Muscle Recovery & Builder-(80 Servings) Packaging May Vary](https://m.media-amazon.com/images/I/41TzY-m77TL.jpg)**MuscleTech Creatine Monohydrate Powder Platinum Pure - Unflavored Micronized Creatine for Men & Women - Workout Supplements for Performance Muscle Recovery & Builder-(80 Servings) Packaging May Vary**MuscleTech**$21.22**4.6★**▲ 94%**](https://www.amazon.com/dp/B00IUHNCIW) [![Optimum Nutrition Serious Mass Weight Gainer Protein Powder Mass Gainer Vitamin C and Zinc for Immune Support Creatine Chocolate 6 Pound (Packaging May Vary)](https://m.media-amazon.com/images/I/41Xv24TlomL.jpg)**Optimum Nutrition Serious Mass Weight Gainer Protein Powder Mass Gainer Vitamin C and Zinc for Immune Support Creatine Chocolate 6 Pound (Packaging May Vary)**Optimum Nutrition**$49.76**4.5★**▲ 85%**](https://www.amazon.com/dp/B0015R36SK) [![NutraBio Growth Peptides |Muscle Accelerator with DiLeucine & PeptiStrong | Peptides for Muscle Growth Men & Women- 28 Servings- 196 Capsules](https://m.media-amazon.com/images/I/414WDQ1KI8L.jpg)**NutraBio Growth Peptides |Muscle Accelerator with DiLeucine & PeptiStrong | Peptides for Muscle Growth Men & Women- 28 Servings- 196 Capsules**NutraBio**$79.20**4.3★**▲ 77%**](https://www.amazon.com/dp/B0FQCMHJ8W)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -11.6% search growth over the last 90 days.

18K13KPrime Day '24Holiday '24Spike '25Prime Day '25 seasonSepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.6×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**19%

*“Excellent product”*

**Energy Level**12%

*“helps with energy”*

**Value For Money**7%

*“Great deal”*

**Advertised Vs Actual Product**5%

*“As advertised”*

**Efficiency**5%

*“Works ok”*

**Taste-Overall**4%

*“Good taste”*

**Vitamin**3%

*“Love this vitamin”*

**Ingredients-Overall**3%

*“Love the ingredients”*

**Muscle Pain Relief**3%

*“Muscle recovery”*

**Nutritional Content**3%

*“Good supplement”*

### **What buyers complain about **

**Solubility**10%

*“Didn't dissolve well”*

**Functionality-Overall**8%

*“Didn't work for me”*

**Taste-Overall**6%

*“They had a weird taste”*

**Dosage**5%

*“the dose is low. 750 mg total”*

**Side Effects**5%

*“Dangerous Side Effects”*

**Quality-Overall**4%

*“Horrible quality”*

**Value For Money**4%

*“expensive”*

**Energy Level**3%

*“No energy”*

**Acid Regulator/Stomach Ache Relief**3%

*“yikes belly bloat”*

**Ingredients-Overall**2%

*“Bad ingredients bad mood swings, just bad”*

### **Top return reasons **

**Value For Money**17%

**Quality-Overall**10%

**Functionality-Overall**10%

**Side Effects**9%

**Joint Pain**7%

**Acid Regulator/Stomach Ache Relief**7%

**Ingredients-Overall**5%

**Certifications**3%

**Solubility**3%

**Product Condition**3%