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42

l arginine

Skip it

Soft demand (-35.6% this quarter) — this niche doesn't clear our bar today.

Market size 29Growth 7Conversion 57Competition 21Returns 96Price range 27Avg price 71Brand share 41Review moat 46Quality gap 70

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Avg price

Good$111.65

avg listing price — sweet spot $15–$100

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Conversion

Good4.8%

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

Review moat

Okay1,850.08

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay80%

top-5 brand share — brands hold most of the demand

Market size

Okay$127K

$127K/yr · 24K searches

Price range

Okay$49.62–$234.48

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

Competition

Bad75%

top-5 click share — a locked-up shelf

Growth

Bad-35.6%

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

According to Flapen's Amazon Saudi Arabia niche tracking, l arginine is a $127K/yr Amazon Saudi Arabia market (24K searches/yr). The top 5 brands hold 80% of demand. Verdict: Skip it — 42/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

l arginine market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
$56K–$84K
units × avg price
Conversion rate
4.8%
Avg BSR
#141
Page quality
0%
Prime
75%
Sponsored
0%
Out of stock
1.1%
Avg brand age
77 months
Avg seller age
65 days

Competition & brand share

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 flat

Sellers

24

Top-5 brand share

80%

Top 20: 100%

Top-5 click share

75%

Top 20: 100%

Open market

14%

  • Nutricost32%
  • NOW16%
  • Force Factor13%
  • 21st Century11%
  • NOW FOODS8%
  • California Gold Nutrition6%
  • Open — no brand owns it (4 brands, 14%)

Demand

Weekly Amazon search volume, last 42 weeks — -35.6% search growth over the last 90 days.
800600Spike '25Black Friday '25Spike '26Oct '25Nov '25Jan '26Mar '26Apr '26Jun '26

Top l arginine search terms

  • l arginine9K/yr
  • l-arginine7K/yr
  • ارجنين4K/yr
  • l arginine for men4K/yr
All search terms

Top l arginine 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%$13K20%$25K30%$38K40%$51K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 12 tracked products in this niche — three views at once, no toggling.

Common questions

Is l arginine profitable to sell on Amazon Saudi Arabia?
The niche generates $127K/yr across 12 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -35.6%. Flapen's verdict: Skip it (42/100).
How competitive is the l arginine niche?
10 brands and 24 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 80% of demand.
What does it cost to enter the l arginine niche?
Listings span $49.62–$234.48; the average listing price is $111.65 (sweet spot $15–$100). The average incumbent carries 1,850 reviews — the moat a new listing must climb.