Is bulk supplements protein powder profitable to sell on Amazon United States?

The niche generates $501K/yr across 15 tracked products. 90-day search growth is +29.6%. Flapen's verdict: Skip it (48/100).

How competitive is the bulk supplements protein powder niche?

7 brands and 531 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in bulk supplements protein powder?

Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.0%.

When does demand for bulk supplements protein powder peak?

Demand peaks in Mar–Apr–May–Jun; the busiest month runs 3.6× the quietest.

What does it cost to enter the bulk supplements protein powder niche?

Listings span $36.59–$167.51; the average listing price is $89.30 (sweet spot $15–$100). The average incumbent carries 8,334 reviews — the moat a new listing must climb.

bulk supplements protein powder

Skip it

Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$89.30

avg listing price — sweet spot $15–$100

Market size

Good$501K

$501K/yr · 151K searches

Growth

Good+29.6%

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

Price range

Okay$36.59–$167.51

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Okay3.7%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Bad8,333.73

avg incumbent reviews — the moat a new listing must climb

Competition

Bad74%

top-5 click share — a locked-up shelf

Brand share

Bad97%

top-5 brand share — brand-locked demand

Signals High Price

According to Flapen's Amazon United States niche tracking, bulk supplements protein powder is a $501K/yr Amazon United States market (151K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Skip it — 48/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

bulk supplements protein powder market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: $536K–$714K; units × avg price
Conversion rate: 3.7%
Avg BSR: #129
Page quality: 0%
Prime: 93%
Sponsored: 60%
Out of stock: 0.9%
Avg brand age: 91 months
Avg seller age: 142 days

Competition & brand share

The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 falling

Sellers

531

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

74%

Top 20: 100%

Open market

BulkSupplements42%
Optimum Nutrition41%
BSN8%
Animal3%
Ascent2%
Nutricost1%
Open — no brand owns it (1 brand, 1%)

Demand & seasonality

Weekly Amazon search volume, last 101 weeks — +29.6% search growth over the last 90 days.

Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 3.6×

Open Trend

Top bulk supplements protein powder search terms

protein powder 10 lbs30K/yr +31.8%1.6% conv.
whey protein 10 lbs24K/yr +42.6%1.1% conv.
bulk supplements protein powder32K/yr +4.3%4.9% conv.
bulk supplements whey protein isolate12K/yr +77.0%4.5% conv.
optimum nutrition whey protein 10 pound7K/yr +56.2%3.5% conv.
gold standard whey protein 10 lbs9K/yr +74.9%3.5% conv.
whey protein isolate 10 lbs7K/yr +37.2%0.8% conv.
on whey protein powder 10 lbs3K/yr +70.8%2.7% conv.
optimum nutrition whey protein 10 lb bag5K/yr -23.6%2.9% conv.
on protein powder 10 lb3K/yr +27.0%2.4% conv.

All search terms

Top bulk supplements protein powder 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.

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

All 15 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

BulkSupplements.com Whey Protein Isolate Powder - Unflavored Whey Protein Powder Nutritional Supplement - Gluten Free 30g per Serving 1kg (2.2 lbs) (Pack of 1)

BulkSupplements$43.054.5★8,174 rev

Optimum Nutrition Gold Standard 100% Whey Protein Powder Extreme Milk Chocolate 10 Pound (Packaging May Vary)

Optimum Nutrition$122.144.7★29,541 rev

Optimum Nutrition Gold Standard 100% Whey Protein Powder Vanilla Ice Cream 9.98 lb 146 Servings

Optimum Nutrition$124.434.7★47,750 rev

BulkSupplements.com Grass Fed Whey Protein Powder - Whey Protein Concentrate Powder - Unflavored & Gluten Free 30g per Serving 1kg (2.2 lbs) (Pack of 1)

BulkSupplements$36.894.4★609 rev

BSN SYNTHA-6 Whey Protein Powder with Micellar Casein Chocolate Milk Protein Isolate Powder Chocolate Milkshake 97 Servings (Package May Vary)

BSN$103.904.6★10,029 rev

Newest

by launch date

Ascent 100% Whey Protein Powder - Post Workout Whey Protein Isolate Zero Artificial Flavors & Sweeteners Gluten Free 5.5g BCAA 2.6g Leucine Essential Amino Acids Chocolate Peanut Butter 2 lb

Ascent$44.241,602 rev

7y ago

COLOSSAL LABS Muscle Whey Protein Flavored Protein Powder 25 000mg Amino Acids/Serving Cold Filtered(Packaging May Vary) (12 Pound (Bucket) Vanilla)

COLOSSAL LABS$135.35621 rev

8y ago

Nutricost Whey Protein Powder Unflavored 5 pounds - from Whey Protein Concentrate

Nutricost$60.074,494 rev

9y ago

Animal Whey Isolate Protein Powder - Loaded for Pre & Post Workout Muscle Builder and Recovery with Digestive Enzymes for Men & Women - 25g Protein Great Taste Low Sugar - Chocolate 10 lbs

Animal$127.701,270 rev

10y ago

BulkSupplements.com Hydrolyzed Whey Protein Isolate Powder - Whey Isolate Protein - Unflavored & Gluten Free 30g per Serving 1kg (2.2 lbs) (Pack of 1)

BulkSupplements$57.50371 rev

10y ago

What buyers say about bulk supplements protein powder

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

What buyers love

Nutritional Content23%

“Great tasting protein”

Taste-Overall11%

“tastes absolutely divine”

Value For Money9%

“Good deal”

Flavor7%

“Good flavor”

Solubility7%

“The best thing I like is it is easy to dissolve”

Quality-Overall6%

“it is very high quality with a zipper seal”

Blend/Ratio4%

“This blends in well”

Ingredients-Overall2%

“Good clean ingredients”

Advertised Vs Actual Product2%

“in practice it has done exactly what I hoped”

Ease Of Use1%

“simple it is”

What buyers complain about

Taste-Overall13%

“The taste was completely different”

Value For Money11%

“Over priced”

Flavor11%

“The flavor is very artificial”

Nutritional Content10%

“Less protein”

Advertised Vs Actual Product4%

“This product is misleading”

Solubility3%

“Powder didnt dissolve properly”

Smell3%

“the aroma when opening the container has a chemical component to it”

Quality-Overall2%

“Horrible quality control”

Ingredients-Overall2%

“If you want a pure one-ingredient whey isolate do not buy this”

Artificial Sweeteners2%

“Cannot use artificial sweetener”

Common questions

Is bulk supplements protein powder profitable to sell on Amazon United States?: The niche generates $501K/yr across 15 tracked products. 90-day search growth is +29.6%. Flapen's verdict: Skip it (48/100).
How competitive is the bulk supplements protein powder niche?: 7 brands and 531 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in bulk supplements protein powder?: Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.0%.
When does demand for bulk supplements protein powder peak?: Demand peaks in Mar–Apr–May–Jun; the busiest month runs 3.6× the quietest.
What does it cost to enter the bulk supplements protein powder niche?: Listings span $36.59–$167.51; the average listing price is $89.30 (sweet spot $15–$100). The average incumbent carries 8,334 reviews — the moat a new listing must climb.