---
title: "Casein — $0/yr Amazon SG Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/sg/health-household-and-personal-care/casein"
last_updated: "2026-08-08T05:21:25.973Z"
locale: en
meta:
description: "Niche score 26/100 · $0/yr market · 2K searches/yr · $76.80 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 26/100 · $0/yr market · 2K searches/yr · $76.80 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Casein — $0/yr Amazon SG Niche (2026) - Flapen"
---
# **casein**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 10Conversion 0Competition 0Returns 100Price range 89Avg price 83Brand share 0Review moat 39Quality gap 42
**Returns**
**Incredible****0.0%**
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**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****2,641.75**
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**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=sg&signal=high_price "Avg price > $50")
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 ~~](https://flapen.com/research/methodology)
## **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**
**6**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- Optimum Nutrition61% - Dymatize22% - Nutricost16%
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — -30.4% search growth over the last 90 days.
150100Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul, Oct · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/sg/health-household-and-personal-care/casein/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.
0%10%$020%$030%$040%$01K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**OPTIMUM NUTRITION GOLD STANDARD 100% Micellar Casein Protein Powder 4 Pounds**Optimum Nutrition**$103.69**4.6★3,111 rev](https://www.amazon.sg/dp/B002DYJ0N4) [2**OPTIMUM NUTRITION GOLD STANDARD 100% Micellar Casein Protein Powder Slow Digesting Helps Keep You Full Overnight Muscle Recovery Creamy Vanilla 2 Pound**Optimum Nutrition**$61.43**4.4★2,511 rev](https://www.amazon.sg/dp/B002DYJ0PW) [3**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**$91.90**4.6★3,573 rev](https://www.amazon.sg/dp/B00JT8470S) [4**Nutricost Casein Protein Powder 2lb Vanilla - Micellar Casein Gluten Free Non-GMO**Nutricost**$50.19**4.4★1,372 rev](https://www.amazon.sg/dp/B07SH22XS3)
### **Newest**
by launch date
[**Nutricost Casein Protein Powder 2lb Vanilla - Micellar Casein Gluten Free Non-GMO**Nutricost**$50.19**1,372 rev7y ago](https://www.amazon.sg/dp/B07SH22XS3) [**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**$91.90**3,573 rev12y ago](https://www.amazon.sg/dp/B00JT8470S) [**OPTIMUM NUTRITION GOLD STANDARD 100% Micellar Casein Protein Powder Slow Digesting Helps Keep You Full Overnight Muscle Recovery Creamy Vanilla 2 Pound**Optimum Nutrition**$61.43**2,511 rev13y ago](https://www.amazon.sg/dp/B002DYJ0PW) [**OPTIMUM NUTRITION GOLD STANDARD 100% Micellar Casein Protein Powder 4 Pounds**Optimum Nutrition**$103.69**3,111 rev13y ago](https://www.amazon.sg/dp/B002DYJ0N4)
### **Trending**
90-day click momentum
[**Nutricost Casein Protein Powder 2lb Vanilla - Micellar Casein Gluten Free Non-GMO**Nutricost**$50.19**4.4★**▲ 173%**](https://www.amazon.sg/dp/B07SH22XS3) [**OPTIMUM NUTRITION GOLD STANDARD 100% Micellar Casein Protein Powder 4 Pounds**Optimum Nutrition**$103.69**4.6★**— 3%**](https://www.amazon.sg/dp/B002DYJ0N4) [**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**$91.90**4.6★**— 3%**](https://www.amazon.sg/dp/B00JT8470S) [**OPTIMUM NUTRITION GOLD STANDARD 100% Micellar Casein Protein Powder Slow Digesting Helps Keep You Full Overnight Muscle Recovery Creamy Vanilla 2 Pound**Optimum Nutrition**$61.43**4.4★**▼ 33%**](https://www.amazon.sg/dp/B002DYJ0PW)
## **Common questions**
- **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.
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