- Flapen Score
- 31 / 100Ranks 181 of 184 Health niches · −17 vs the category median of 4831
- Market size
- $24K/yr27K searches / yr
- 90-day growth
- +15.1%search demand this quarter
- Competition
- 92%top-5 click share · 4 brands · 11 sellers
Flapen Score
Serious Mass against its category
The dotted line is the Health average. Past it, Serious Mass is stronger. Inside it, weaker.
Market
The Serious Mass market on Amazon at a glance
Shoppers on Amazon Saudi Arabia searched for Serious Mass 27K times last year and spent an estimated $24K. All 4 brands take every click. Flapen scores it 31 out of 100, a Fail.
01 · Demand
An estimated 0.5% of those searches ended in a purchase.
Shoppers searched for this 27K times in the last 12 months. That counts every search on Amazon Saudi Arabia for this niche's terms. An estimated 0.5% of those searches ended in a purchase. Searches in the last 90 days moved +15.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $24K a year.
- Searches, last 12 months
- 27K
- Growth, 90 days vs prior 90
- +15.1%
- Conversion, latest week
- 0.5%
- Market size, estimated
- $24Ka year
- Top search term
- serious mass13K searches a year
02 · Price
A sale here is worth $185.00.
Listings sell for $185.00 on average, from $133.71 to $258.79. Amazon reports units sold in ranges. This niche sold 250 to 500 a year. The average listing sells 0 to 100 of them. At $185.00 that is $0 to $19K a year per listing.
- Average price
- $185.00above the $15 to $100 sweet spot
- Price range
- $133.71–$258.79
- Amazon Saudi Arabia median price
- $69.41across 1,863 niches
- Units sold a year
- 250–500
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$19K
- Returns
- 0.1%of orders · Amazon Saudi Arabia median 1.8%
03 · Entry bar
The bar here is reviews.
0% of listings pay for placement with sponsored ads. 88% ship with Prime. On an average day, 2.6% of listings are out of stock. The average listing ranks #38 within Health. It carries 4,241 reviews at 4.14 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 0%
- Prime listings
- 88%
- Out of stock, average day
- 2.6%
- Average rank
- #38in Health
- Average rating
- 4.14 starsAmazon Saudi Arabia average 4.21 stars
- Average reviews
- 4,241per listing
- Listings tracked
- 8
04 · Newcomers
0 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 60 months on average, so the names here are established.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 60 months
Products
Top Serious Mass products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Optimum Nutrition (ON) Serious Mass: Protein Powder 50 Grams of Protein Vitamin C Zinc And Vitamin D for Immune Support - Chocolate 6 Lbs (2.72 kg)
- Price
- $133.71
- Rating
- 3.9/5
- Reviews
- 315
- Age
- 9y ago

Optimum Nutrition (ON) Serious Mass: High Protein Muscle Building and Weight Gainer Protein Powder 50 Grams of Protein Vitamin C Zinc And Vitamin D for Immune Support - Vanilla 6 Lbs (2.72 kg)
- Price
- $135.43
- Rating
- 4.3/5
- Reviews
- 12,561
- Age
- 13y ago

Optimum Nutrition (ON) Serious Mass: High Protein Muscle Building and Weight Gainer Protein Powder 50 Grams of Protein Vitamin C Zinc And Vitamin D for Immune Support - Vanilla 12 Lbs (5.44 kg)
- Price
- $258.79
- Rating
- 3.7/5
- Reviews
- 24
- Age
- 8y ago

Optimum Serious Mass CHOCOLATE 6LB (4/CS)
- Price
- $223.37
- Rating
- 4.0/5
- Reviews
- 26
- Age
- 7y ago

Optimum Nutrition Serious Mass Weight Gainer Protein Powder Mass Gainer Vitamin C and Zinc for Immune Support Creatine Chocolate 6 Pound (Packaging May Vary)
- Price
- $211.80
- Rating
- 4.4/5
- Reviews
- 18,378
- Age
- 3y ago
Trending
estimated 90-day click momentum
Optimum Nutrition Serious Mass Weight Gainer Protein Powder Mass Gainer Vitamin C and Zinc for Immune Support Creatine Chocolate 6 Pound (Packaging May Vary)
- Price
- $211.80
- Rating
- 4.4/5
- Reviews
- 18,378
- Age
- 3y ago

Body Builder Mass Gainer | 40gm High protein - muscle Growth & Recovery Weight Gainer Protein (5 LB Cookies and Cream)
- Price
- $142.40
- Rating
- 4.7/5
- Reviews
- 4
- Age
- 10mo ago

Applied Nutrition Critical Mass Gainz Chocolate - 2.4kg
- Price
- $165.91
- Rating
- 3.8/5
- Reviews
- 7
- Age
- 10y ago

Optimum Nutrition (ON) Serious Mass: High Protein Muscle Building and Weight Gainer Protein Powder 50 Grams of Protein Vitamin C Zinc And Vitamin D for Immune Support - Vanilla 6 Lbs (2.72 kg)
- Price
- $135.43
- Rating
- 4.3/5
- Reviews
- 12,561
- Age
- 13y ago

Muscletech 100% Mass Gainer High-Protein Powder Enhance Muscle Strength Performance & Quicker Muscle Recovery - 5g Creatine 305g Carbs & 1500 Calories Chocolate Fudge Brownie Flavor 5.15 lbs
- Price
- $208.56
- Rating
- 4.3/5
- Reviews
- 2,610
- Age
- 7y ago
Newest
by launch date
Body Builder Mass Gainer | 40gm High protein - muscle Growth & Recovery Weight Gainer Protein (5 LB Cookies and Cream)
- Price
- $142.40
- Rating
- 4.7/5
- Reviews
- 4
- Age
- 10mo ago

Optimum Nutrition Serious Mass Weight Gainer Protein Powder Mass Gainer Vitamin C and Zinc for Immune Support Creatine Chocolate 6 Pound (Packaging May Vary)
- Price
- $211.80
- Rating
- 4.4/5
- Reviews
- 18,378
- Age
- 3y ago

Optimum Serious Mass CHOCOLATE 6LB (4/CS)
- Price
- $223.37
- Rating
- 4.0/5
- Reviews
- 26
- Age
- 7y ago

Muscletech 100% Mass Gainer High-Protein Powder Enhance Muscle Strength Performance & Quicker Muscle Recovery - 5g Creatine 305g Carbs & 1500 Calories Chocolate Fudge Brownie Flavor 5.15 lbs
- Price
- $208.56
- Rating
- 4.3/5
- Reviews
- 2,610
- Age
- 7y ago

Optimum Nutrition (ON) Serious Mass: High Protein Muscle Building and Weight Gainer Protein Powder 50 Grams of Protein Vitamin C Zinc And Vitamin D for Immune Support - Vanilla 12 Lbs (5.44 kg)
- Price
- $258.79
- Rating
- 3.7/5
- Reviews
- 24
- Age
- 8y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 92% of clicks. A locked shelf that new listings rarely crack.
Brands
4 falling
Sellers
11
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
92%
Top 20: 100%
Open market
0%
- Optimum Nutrition92%
- Muscletech3%
- Applied Nutrition3%
- Body Builder3%
- Open — no brand owns it (0%)
Demand
Serious Mass search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Nov · busiest ÷ quietest = 1.5× · 9 of 12 months tracked
Search terms
Top Serious Mass search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- serious mass13K/yr
- سيريس ماس6K/yr
- mass9K/yr
Reviews and returns
What reviews say buyers love and hate about Serious Mass
We read the reviews and the return reasons for every product selling here.
“Good quality”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
1 topic
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Serious Mass questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data






