Is nac profitable to sell on Amazon Singapore?

The niche generates $0/yr across 4 tracked products. 90-day search growth is -26.6%. Flapen's verdict: Skip it (32/100).

How competitive is the nac niche?

4 brands and 21 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.

What does it cost to enter the nac niche?

Listings span $11.00–$108.25; the average listing price is $44.66 (sweet spot $15–$100). The average incumbent carries 478 reviews — the moat a new listing must climb.

nac

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

Avg price

Incredible$44.66

avg listing price — sweet spot $15–$100

Price range

Great$11.00–$108.25

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

Review moat

Great478

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Growth

Bad-26.6%

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

Market size

Bad$0

$0/yr · 4K 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 Out of Stock

According to Flapen's Amazon Singapore niche tracking, nac is a $0/yr Amazon Singapore market (4K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 32/100.

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

nac market data

Units sold / yr: 0–100; avg 0–100/product
Revenue / yr: $0–$4K; units × avg price
Conversion rate: 0.0%
Avg BSR: #521
Page quality: 0%
Prime: 0%
Sponsored: 0%
Out of stock: 8.6%
Avg brand age: 100 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

4 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

Nutricost39%
NutriJa22%
PURE ORIGINAL INGREDIENTS20%
Xymogen19%

Demand

Weekly Amazon search volume, last 46 weeks — -26.6% search growth over the last 90 days.

Open Trend

Top nac 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★)1 product missing review or click data not plotted

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

Top sellers

by 90-day click share

Nutricost N-Acetyl L-Tyrosine (NALT) 350mg 120 Capsules - Gluten Free Non-GMO

Nutricost$18.684.5★1,811 rev

NutriJa NAC Powder 50 Grams

NutriJa$11.000.0★0 rev

PURE ORIGINAL INGREDIENTS N-Acetyl L-Cysteine (100 Capsules) Always Pure No Additives Or Fillers Lab Verified

PURE ORIGINAL INGREDIENTS$40.713.6★17 rev

Xymogen NAC (120c)

Xymogen$108.254.9★84 rev

Newest

by launch date

NutriJa NAC Powder 50 Grams

NutriJa$11.000 rev

1y ago

PURE ORIGINAL INGREDIENTS N-Acetyl L-Cysteine (100 Capsules) Always Pure No Additives Or Fillers Lab Verified

PURE ORIGINAL INGREDIENTS$40.7117 rev

3y ago

Xymogen NAC (120c)

Xymogen$108.2584 rev

5y ago

Nutricost N-Acetyl L-Tyrosine (NALT) 350mg 120 Capsules - Gluten Free Non-GMO

Nutricost$18.681,811 rev

8y ago

Common questions

Is nac profitable to sell on Amazon Singapore?: The niche generates $0/yr across 4 tracked products. 90-day search growth is -26.6%. Flapen's verdict: Skip it (32/100).
How competitive is the nac niche?: 4 brands and 21 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
What does it cost to enter the nac niche?: Listings span $11.00–$108.25; the average listing price is $44.66 (sweet spot $15–$100). The average incumbent carries 478 reviews — the moat a new listing must climb.

nac