---
title: "Muscle Protein Powder — $7K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/muscle-protein-powder"
last_updated: "2026-08-12T10:27:23.801Z"
locale: en
meta:
description: "Amazon product research for muscle protein powder: $7K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for muscle protein powder: $7K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Muscle Protein Powder — $7K/mo Amazon US Product Research"
---
# **Muscle Protein Powder**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 20Growth 29Conversion 30Competition 13Returns 100Price range 95Avg price 92Brand share 0Review moat 23Quality gap 60
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Price range**
**Incredible****$23.24–$81.68**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$53.54**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****2.4%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Okay****+3.6%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****7,585.44**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$80K**
$80K/yr · 62K searches
**Competition**
**Bad****85%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")
## **Is muscle protein powder profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, muscle protein powder is a $80K/yr Amazon United States market (62K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 39/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **muscle protein powder market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$107K–$134K**
- units × avg price
- **Conversion rate**
- **2.4%**
- **Avg BSR**
- **#222**
- **Page quality**
- **0%**
- **Prime**
- **67%**
- **Sponsored**
- **67%**
- **Out of stock**
- **43.7%**
- **Avg brand age**
- **78 months**
- **Avg seller age**
- **143 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**29**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**85%**
Top 20: 100%
**Open market**
**0%**
- GNC58% - Dymatize21% - Optimum Nutrition11% - Naturade7% - Supragenix3%
## **muscle protein powder demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +3.6% search growth over the last 90 days.
2K1KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/health-household/muscle-protein-powder/trend)
## **Top muscle protein powder search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **gnc bulk 1340**9K/yr+42.3%2.3% conv. - **gnc mass gainer**10K/yr+5.7%1.9% conv. - **gnc weight gainer**10K/yr-1.3%0.9% conv. - **weight gain supplements for men**6K/yr+2.0%0.9% conv. - **gnc weight gainer protein powder**5K/yr-9.7%1.0% conv. - **gnc pro performance bulk 1340**5K/yr+4.0%1.3% conv. - **weight gain protein powder for women**5K/yr-4.1%1.4% conv. - **1340 bulk protein**3K/yr+61.6%2.7% conv. - **protein powder to gain weight**5K/yr-28.7%1.8% conv. - **gnc pro performance weight gainer**3K/yr-19.5%0.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/muscle-protein-powder/search-terms)
## **Top muscle protein powder products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%$12K30%$24K45%$36K60%$48K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**GNC Pro Performance Bulk 1340 - Protein Powder for Active Lifestyles - Sports Nutrition for Muscle Fuel - Nutrient-Dense Blend with Creatine & Glutamine - Cookies & Cream - 114.24 Oz (9 Servings)**GNC**$53.72**4.0★5 rev](https://www.amazon.com/dp/B0GP2Y4WJ7) [2**Dymatize Super Mass Gainer Protein Powder Gourmet Vanilla 52g Protein 1g Creatine 1280 Calories 10.7g BCAAs 245g Carbs Contains Whey Protein Powder Isolate and Casein (8 Servings)**Dymatize**$41.07**4.5★9,308 rev](https://www.amazon.com/dp/B0020XQWCA) [3**Naturade Weight Gain Nutrition Drink Mix for Healthy Weight Support Balanced Calories with Protein Vitamins & Minerals Vanilla - 20.3 oz**Naturade**$23.24**4.2★3,472 rev](https://www.amazon.com/dp/B00024CQ74) [4**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★34,752 rev](https://www.amazon.com/dp/B0015R36SK) [5**GNC AMP Mass XXX Clinically Proven Weight Gainer Protein Powder Improves Strength and Size 780 Calories 50g Protein Micronized Amino Acids Creatine Betaine Vanilla 13 Servings 6 Pounds**GNC**$81.68**4.8★166 rev](https://www.amazon.com/dp/B091D1L7K4)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**GNC Pro Bulk 1340 2.0 Double Chocolate 15 Servings**GNC**$81.66**0 rev3mo ago](https://www.amazon.com/dp/B0GWN87J52) [**GNC Pro Performance Bulk 1340 - Protein Powder for Active Lifestyles - Sports Nutrition for Muscle Fuel - Nutrient-Dense Blend with Creatine & Glutamine - Cookies & Cream - 114.24 Oz (9 Servings)**GNC**$53.72**5 rev4mo ago](https://www.amazon.com/dp/B0GP2Y4WJ7) [**Supragenix CB-1 Weight Gainer Pills (90 Count) | Weight Gain Support for Women & Men | Clinically Tested Appetite Booster | Powerful Mass Gainer**Supragenix**$65.11**562 rev2y ago](https://www.amazon.com/dp/B0CX3P86NB) [**GNC AMP Mass XXX Clinically Proven Weight Gainer Protein Powder Improves Strength and Size 780 Calories 50g Protein Micronized Amino Acids Creatine Betaine Vanilla 13 Servings 6 Pounds**GNC**$81.68**166 rev5y ago](https://www.amazon.com/dp/B091D1L7K4) [**GNC Pro Performance Weight Gainer - Double Chocolate - 2.5 lb**GNC**$33.20**111 rev8y ago](https://www.amazon.com/dp/B07F2L11RM)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**GNC Pro Performance Bulk 1340 - Protein Powder for Active Lifestyles - Sports Nutrition for Muscle Fuel - Nutrient-Dense Blend with Creatine & Glutamine - Cookies & Cream - 114.24 Oz (9 Servings)**GNC**$53.72**4.0★**▲ 105%**](https://www.amazon.com/dp/B0GP2Y4WJ7) [**GNC Pro Bulk 1340 2.0 Double Chocolate 15 Servings**GNC**$81.66**0.0★**▲ 105%**](https://www.amazon.com/dp/B0GWN87J52) [**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★**▼ 13%**](https://www.amazon.com/dp/B0015R36SK) [**Dymatize Super Mass Gainer Protein Powder Gourmet Vanilla 52g Protein 1g Creatine 1280 Calories 10.7g BCAAs 245g Carbs Contains Whey Protein Powder Isolate and Casein (8 Servings)**Dymatize**$41.07**4.5★**▼ 20%**](https://www.amazon.com/dp/B0020XQWCA) [**Supragenix CB-1 Weight Gainer Pills (90 Count) | Weight Gain Support for Women & Men | Clinically Tested Appetite Booster | Powerful Mass Gainer**Supragenix**$65.11**4.2★**▼ 33%**](https://www.amazon.com/dp/B0CX3P86NB)
**~~View all trending →~~**
## **What reviews say buyers love and hate about muscle protein powder**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**23%
*“Good taste”*
**Weight Loss**16%
*“this really help me maintain the weight”*
**Weight Gain**9%
*“Helps you gain weight”*
**Quality-Overall**7%
*“Good quality”*
**Nutritional Content**6%
*“This protein powder is excellent”*
**Flavor**5%
*“Flavor is good”*
**Ease Of Use**4%
*“Easy to mix”*
**Value For Money**4%
*“Definitely worth the money”*
**Efficiency**3%
*“It really does work”*
**Side Effects**2%
*“I didnt experience any side effects”*
### **What buyers complain about **
**Functionality-Overall**13%
*“Mildly effective. Didn't get great results”*
**Value For Money**10%
*“Waste of money”*
**Weight Loss**10%
*“I saw absolutely no increase in appetite”*
**Taste-Overall**9%
*“it doesn't taste much like vanilla”*
**Quality-Overall**6%
*“Full of garbage”*
**Nutritional Content**5%
*“its no good, plus half a cup supplies only 10 grams of protein, scarcely more than 2 tablespoons of peanut butter”*
**Dosage**3%
*“Using scoops and grams isnt helpful — every scoop is different, and how many people weigh a powder”*
**Advertised Vs Actual Product**3%
*“Seems discriminatory”*
**Flavor**2%
*“Not a fan of the flavor”*
**Size-Overall**2%
*“serving size is HUGE”*
## **Common muscle protein powder questions**
- **Is muscle protein powder profitable to sell on Amazon United States?**
- The niche generates $80K/yr across 9 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +3.6%. Flapen's verdict: Skip it (39/100).
- **How competitive is the muscle protein powder niche?**
- 5 brands and 29 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in muscle protein powder?**
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Weight Loss. The return rate is 0.0%.
- **When does demand for muscle protein powder peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the muscle protein powder niche?**
- Listings span $23.24–$81.68; the average listing price is $53.54 (sweet spot $15–$100). The average incumbent carries 7,585 reviews — the moat a new listing must climb.
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