Is casein profitable to sell on Amazon Singapore?

The niche generates $0/yr across 4 tracked products. 90-day search growth is -30.4%. Flapen's verdict: Skip it (26/100).

How competitive is the casein niche?

3 brands and 6 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.

When does demand for casein peak?

Demand peaks in Jul–Oct; the busiest month runs 2.0× the quietest.

What does it cost to enter the casein niche?

Listings span $50.19–$103.69; the average listing price is $76.80 (sweet spot $15–$100). The average incumbent carries 2,642 reviews — the moat a new listing must climb.

casein

Skip it

A small market ($0/yr) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Price range

Great$50.19–$103.69

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

Avg price

Great$76.80

avg listing price — sweet spot $15–$100

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,641.75

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-30.4%

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

Market size

Bad$0

$0/yr · 2K searches

Conversion

Bad0.0%

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

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals High Price

According to Flapen's Amazon Singapore niche tracking, casein is a $0/yr Amazon Singapore market (2K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jul–Oct. Verdict: Skip it — 26/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

casein market data

Units sold / yr: 0–100; avg 0–100/product
Revenue / yr: $0–$8K; units × avg price
Conversion rate: 0.0%
Avg BSR: #50
Page quality: 0%
Prime: 100%
Sponsored: 0%
Out of stock: 9.5%
Avg brand age: 130 months
Avg seller age: 0 days

Competition & brand share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

Optimum Nutrition61%
Dymatize22%
Nutricost16%

Demand & seasonality

Weekly Amazon search volume, last 103 weeks — -30.4% search growth over the last 90 days.

Peak months: Jul, Oct · busiest ÷ quietest = 2.0×

Open Trend

Top casein 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 4 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

OPTIMUM NUTRITION GOLD STANDARD 100% Micellar Casein Protein Powder 4 Pounds

Optimum Nutrition$103.694.6★3,111 rev

OPTIMUM NUTRITION GOLD STANDARD 100% Micellar Casein Protein Powder Slow Digesting Helps Keep You Full Overnight Muscle Recovery Creamy Vanilla 2 Pound

Optimum Nutrition$61.434.4★2,511 rev

Dymatize Elite Casein Protein Powder Slow Absorbing with Muscle Building Amino Acids 100% Micellar Casein 25g Protein 5.4g BCAAs & 2.3g Leucine Helps Overnight Recovery Rich Chocolate 4 Pound

Dymatize$91.904.6★3,573 rev

Nutricost Casein Protein Powder 2lb Vanilla - Micellar Casein Gluten Free Non-GMO

Nutricost$50.194.4★1,372 rev

Newest

by launch date

Nutricost Casein Protein Powder 2lb Vanilla - Micellar Casein Gluten Free Non-GMO

Nutricost$50.191,372 rev

7y ago

Dymatize Elite Casein Protein Powder Slow Absorbing with Muscle Building Amino Acids 100% Micellar Casein 25g Protein 5.4g BCAAs & 2.3g Leucine Helps Overnight Recovery Rich Chocolate 4 Pound

Dymatize$91.903,573 rev

12y ago

OPTIMUM NUTRITION GOLD STANDARD 100% Micellar Casein Protein Powder Slow Digesting Helps Keep You Full Overnight Muscle Recovery Creamy Vanilla 2 Pound

Optimum Nutrition$61.432,511 rev

13y ago