Skip to content
49

b12 5000

Skip it

Strong incumbent ratings (4.7★) — this niche doesn't clear our bar today.

Market size 31Growth 37Conversion 96Competition 32Returns 100Price range 78Avg price 84Brand share 36Review moat 24Quality gap 18

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible14.3%

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

Avg price

Great$18.66

avg listing price — sweet spot $15–$100

Price range

Great$6.90–$45.91

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

Growth

Okay+9.8%

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

Brand share

Okay84%

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

Competition

Okay66%

top-5 click share — leaders hold, buyers still browse

Market size

Okay$144K

$144K/yr · 54K searches

Review moat

Bad5,189.5

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, b12 5000 is a $144K/yr Amazon United States market (54K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Apr–May. Verdict: Skip it — 49/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

b12 5000 market data

Units sold / yr
8K–10K
avg 250–500/product
Revenue / yr
$149K–$187K
units × avg price
Conversion rate
14.3%
Avg BSR
#214
Page quality
0%
Prime
100%
Sponsored
59%
Out of stock
0.0%
Avg brand age
107 months
Avg seller age
160 days

Competition & brand share

The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

153

Top-5 brand share

84%

Top 20: 100%

Top-5 click share

66%

Top 20: 98%

Open market

13%

  • Nature Made21%
  • Nature's Bounty19%
  • KIRKLAND19%
  • Horbäach16%
  • Vitamatic8%
  • Nutricost3%
  • Open — no brand owns it (7 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 102 weeks — +9.8% search growth over the last 90 days.
2K1KBlack Friday '24Spike '25Prime Day '25Spike '26DecMarJunAugNovMarMay

Peak months: Apr, May · busiest ÷ quietest = 1.9×

Top b12 5000 search terms

  • b12 500023K/yr
  • b12 5000mcg9K/yr
  • b-12 5000 mcg9K/yr
  • kirkland b127K/yr
  • kirkland b12 5000 mcg7K/yr
All search terms

Top b12 5000 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%5%$7K10%$14K15%$22K20%$29K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 22 tracked products in this niche — three views at once, no toggling.

What buyers say about b12 5000

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

What buyers love

Quality-Overall16%

“Excellent product”

Vitamin12%

“Great tasting vitamins”

Value For Money10%

“Good Value”

Taste-Overall10%

“Good taste”

Advertised Vs Actual Product9%

“As described”

Energy Level6%

“Energy boost”

Efficiency4%

“appears to be effective”

Ease Of Chewing/Swallowing4%

“love that there chewable”

Solubility3%

“dissolve quickly under the tongue”

Flavor3%

“The berry flavor is actually very good”

What buyers complain about

Solubility13%

“Not easy to dissolve”

Taste-Overall10%

“not a pleasant taste”

Vitamin7%

“It is hard to tell with vitamins”

Dosage7%

“Although a good product it's WAY too much of a dose”

Energy Level5%

“and I dont feel any increased energy”

Size-Overall5%

“Pretty small in size”

Advertised Vs Actual Product3%

“Deceptive advertising - half the stated dosage”

Nutritional Content2%

“an ingredient with too many health concerns”

Ease Of Use2%

“I'm disabled and your bottles are difficult to open”

Ease Of Chewing/Swallowing2%

“Not chewable”

Top return reasons

Vitamin40%
Dosage15%
Smell10%
Functionality-Overall10%
Quality-Overall10%
Ease Of Use10%
Heart Health5%

Common questions

Is b12 5000 profitable to sell on Amazon United States?
The niche generates $144K/yr across 22 tracked products. 90-day search growth is +9.8%. Flapen's verdict: Skip it (49/100).
How competitive is the b12 5000 niche?
13 brands and 153 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 84% of demand.
What do buyers complain about in b12 5000?
Top complaints mined from reviews: Solubility, Taste-Overall, Vitamin. The return rate is 0.0%.
When does demand for b12 5000 peak?
Demand peaks in Apr–May; the busiest month runs 1.9× the quietest.
What does it cost to enter the b12 5000 niche?
Listings span $6.90–$45.91; the average listing price is $18.66 (sweet spot $15–$100). The average incumbent carries 5,190 reviews — the moat a new listing must climb.