Is beta alanine capsules profitable to sell on Amazon United States?

The niche generates $100K/yr across 10 tracked products. 90-day search growth is -28.8%. Flapen's verdict: Skip it (43/100).

How competitive is the beta alanine capsules niche?

7 brands and 8 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in beta alanine capsules?

Top complaints mined from reviews: Allergies, Dosage, Smell. The return rate is 0.0%.

When does demand for beta alanine capsules peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the beta alanine capsules niche?

Listings span $9.97–$45.78; the average listing price is $20.78 (sweet spot $15–$100). The average incumbent carries 2,311 reviews — the moat a new listing must climb.

beta alanine capsules

Skip it

Soft demand (-28.8% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Great10.6%

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

Avg price

Great$20.78

avg listing price — sweet spot $15–$100

Price range

Great$9.97–$45.78

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,311

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$100K

$100K/yr · 45K searches

Competition

Bad82%

top-5 click share — a locked-up shelf

Brand share

Bad94%

top-5 brand share — brand-locked demand

Growth

Bad-28.8%

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

According to Flapen's Amazon United States niche tracking, beta alanine capsules is a $100K/yr Amazon United States market (45K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 43/100.

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

beta alanine capsules market data

Units sold / yr: 4K–5K; avg 250–500/product
Revenue / yr: $83K–$104K; units × avg price
Conversion rate: 10.6%
Avg BSR: #891
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 72 months
Avg seller age: 164 days

Competition & brand share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 rising

Sellers

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

Nutricost50%
BulkSupplements19%
THORNE9%
Primaforce9%
Earthborn Elements7%
BIOTICS RESEARCH3%
Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 97 weeks — -28.8% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top beta alanine capsules search terms

beta alanine capsules23K/yr -10.1%10.2% conv.
alanine17K/yr -40.2%3.6% conv.
beta alanine pills3K/yr -16.7%10.6% conv.
alanine supplement3K/yr -60.8%5.0% conv.

All search terms

Top beta alanine capsules 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 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Nutricost Beta-Alanine Capsules 3400mg 240 Capsules (60 Serv) - Potent Beta Alanine Gluten Free & Non-GMO 850mg Per Cap

Nutricost$18.764.6★1,531 rev

BulkSupplements.com Beta Alanine Capsules - Beta Alanine Supplement Pre-Workout Supplement - Gluten Free 4 Capsules per Serving (3000mg) 240 Count (Pack of 1)

BulkSupplements$17.574.6★164 rev

THORNE - Beta Alanine Sustained Release - Supports Muscle Output & Endurance - Helps Reduce Fatigue & Soreness* - Amino Acid Supplement - NSF Certified for Sport - Gluten & Dairy-Free - 120 Tablets

THORNE$45.784.6★541 rev

Primaforce Beta Alanine Capsules 3 400mg 180 Capsules (45 Servings) - Potent Beta-Alanine Supplement

Primaforce$14.704.4★158 rev

Earthborn Elements L-Alanine 200 Capsules Pure & Undiluted No Additives

Earthborn Elements$9.974.2★41 rev

Newest

by launch date

FeelGood Superfoods Beta-Alanine Capsules 3200mg 30 Servings

FeelGood Superfoods$19.3569 rev

1y ago

BulkSupplements.com Beta Alanine Capsules - Beta Alanine Supplement Pre-Workout Supplement - Gluten Free 4 Capsules per Serving (3000mg) 240 Count (Pack of 1)

BulkSupplements$17.57164 rev

2y ago

Primaforce Beta Alanine Capsules 3 400mg 180 Capsules (45 Servings) - Potent Beta-Alanine Supplement

Primaforce$14.70158 rev

3y ago

Earthborn Elements L-Alanine 200 Capsules Pure & Undiluted No Additives

Earthborn Elements$9.9741 rev

5y ago

Nutricost Beta-Alanine Capsules 3400mg 240 Capsules (60 Serv) - Potent Beta Alanine Gluten Free & Non-GMO 850mg Per Cap

Nutricost$18.761,531 rev

6y ago

What buyers say about beta alanine capsules

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

What buyers love

Quality-Overall35%

“High quality company”

Efficiency7%

“Works its purpose”

Vitamin6%

“great part of a vitamin stack for cardio and weights”

Taste-Overall5%

“Great taste”

Value For Money4%

“the value per dollar is decent”

Advertised Vs Actual Product4%

“they seem to do what theyre supposed to”

Nutritional Content3%

“Nutricost is my go-to brand”

Ease Of Chewing/Swallowing3%

“It is as easy as scooping into your bottle or cup”

Ingredients-Overall3%

“Good clean ingredient — no fillers, no additives, just beta alanine”

Strength2%

“Potent”

What buyers complain about

Allergies10%

“I get the itch”

Dosage8%

“poor dosing instructions”

Smell8%

“OFF SMELL- something is volatilizing off the powder”

Functionality-Overall8%

“Doesn't work”

Taste-Overall6%

“The taste is terrible, bitter and metallic”

Advertised Vs Actual Product6%

“that too is not noted in the purchase details”

Strength6%

“Not very strong”

Side Effects6%

“prickly sensation that last for HOURS”

Contamination3%

“its a degradation product”

Protection3%

“No protection”

Top return reasons

Certifications33%

Taste-Overall33%

Functionality-Overall33%

Common questions

Is beta alanine capsules profitable to sell on Amazon United States?: The niche generates $100K/yr across 10 tracked products. 90-day search growth is -28.8%. Flapen's verdict: Skip it (43/100).
How competitive is the beta alanine capsules niche?: 7 brands and 8 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in beta alanine capsules?: Top complaints mined from reviews: Allergies, Dosage, Smell. The return rate is 0.0%.
When does demand for beta alanine capsules peak?: Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the beta alanine capsules niche?: Listings span $9.97–$45.78; the average listing price is $20.78 (sweet spot $15–$100). The average incumbent carries 2,311 reviews — the moat a new listing must climb.