Is vitamin b9 profitable to sell on Amazon United States?

The niche generates $274K/yr across 17 tracked products. 90-day search growth is -7.5%. Flapen's verdict: Skip it (48/100).

How competitive is the vitamin b9 niche?

13 brands and 93 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 76% of demand.

What do buyers complain about in vitamin b9?

Top complaints mined from reviews: Dosage, Taste-Overall, Vitamin. The return rate is 0.0%.

When does demand for vitamin b9 peak?

Demand peaks in Sep; the busiest month runs 2.9× the quietest.

What does it cost to enter the vitamin b9 niche?

Listings span $5.18–$70.28; the average listing price is $17.52 (sweet spot $15–$100). The average incumbent carries 12,051 reviews — the moat a new listing must climb.

vitamin b9

Skip it

Soft demand (-7.5% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Price range

Great$5.18–$70.28

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

Avg price

Great$17.52

avg listing price — sweet spot $15–$100

Conversion

Great7.9%

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

Market size

Okay$274K

$274K/yr · 197K searches

Brand share

Okay76%

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

Competition

Bad72%

top-5 click share — a locked-up shelf

Growth

Bad-7.5%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Review moat

Bad12,051.06

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, vitamin b9 is a $274K/yr Amazon United States market (197K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Sep. Verdict: Skip it — 48/100.

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

vitamin b9 market data

Units sold / yr: 15K–20K; avg 1,000–1,250/product
Revenue / yr: $263K–$350K; units × avg price
Conversion rate: 7.9%
Avg BSR: #135
Page quality: 0%
Prime: 100%
Sponsored: 76%
Out of stock: 0.0%
Avg brand age: 83 months
Avg seller age: 149 days

Competition & brand share

The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.

Brands

13 flat

Sellers

Top-5 brand share

76%

Top 20: 100%

Top-5 click share

72%

Top 20: 100%

Open market

18%

Nutricost27%
Nature Made25%
Triquetra Health9%
THORNE9%
Vitamatic6%
NOW Foods5%

Demand & seasonality

Weekly Amazon search volume, last 101 weeks — -7.5% search growth over the last 90 days.

Peak months: Sep · busiest ÷ quietest = 2.9×

Open Trend

Top vitamin b9 search terms

vitamin b951K/yr +0.8%7.5% conv.
b9 vitamin39K/yr -8.3%7.8% conv.
vitamin b9 folic acid11K/yr -2.3%8.9% conv.
vitamin b9 folate9K/yr +0.7%6.2% conv.
folate b98K/yr -15.3%5.3% conv.
vitamina b96K/yr -16.1%2.4% conv.
vitamin b9 (folic acid) supplements4K/yr -47.5%2.5% conv.
b9 folate supplement4K/yr -24.7%6.7% conv.
vitamin b 93K/yr +18.8%5.5% conv.
b9 vitamins for women4K/yr -24.2%6.8% conv.

All search terms

Top vitamin b9 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 17 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Nutricost Folic Acid (Vitamin B9) 1000 mcg 240 Capsules

Nutricost$12.374.7★15,265 rev

Nature Made Folic Acid 400 mcg (665 mcg DFE) 250 Tablets

Nature Made$5.184.8★29,982 rev

THORNE - 5-MTHF - Methylfolate (Active B9 Folate) Supplement - Supports Cardiovascular Health Fetal Development Nerve Health Methylation & Homocysteine Levels* - 60 Servings - 5-MTHF 1mg

THORNE$23.884.7★4,081 rev

L Methyl Folate 15mg Plus Methyl B12 Cofactor High Potency Active 5-MTHF Form - Supports Mood Methylation Cognition Bioactive Forms of Vitamin B9 & B12 (60 Capsules 60 Servings)

Triquetra Health$21.674.6★9,407 rev

Vitamatic Folic Acid 1000 mcg (1 mg) 240 Vegetarian Tablets | Vitamin B9

Vitamatic$9.704.8★8,348 rev

Newest

by launch date

Bronson Super B Vitamin B Complex Sustained Release for Energy 60 Tablets

Bronson$10.009,428 rev

2y ago

BulkSupplements.com Folic Acid Softgels - Vitamin B9 Folic Acid 1000 mcg Folate Supplement - Gluten Free 1 Softgel per Serving 365 Count (Pack of 1)

BulkSupplements$20.35131 rev

2y ago

L Methyl Folate 15mg Plus Methyl B12 Cofactor Organic Berry Flavor High Potency Liquid Sublingual Active 5-MTHF Form - Supports Mood Methylation Cognition Bioactive Forms Vitamin B9 & B12 (1oz)

Triquetra Health$21.875,924 rev

4y ago

Vitamatic Folic Acid 1000 mcg (1 mg) 240 Vegetarian Tablets | Vitamin B9

Vitamatic$9.708,348 rev

5y ago

L Methyl Folate 15mg Plus Methyl B12 Cofactor High Potency Active 5-MTHF Form - Supports Mood Methylation Cognition Bioactive Forms of Vitamin B9 & B12 (60 Capsules 60 Servings)

Triquetra Health$21.679,407 rev

5y ago

What buyers say about vitamin b9

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

What buyers love

Quality-Overall17%

“Trusted Quality at a Great Price”

Value For Money11%

“Great value”

Vitamin11%

“Great vitamin”

Advertised Vs Actual Product8%

“As advertised”

Energy Level7%

“Energy Boost”

Taste-Overall5%

“No aftertaste and no issues with tolerability”

Efficiency5%

“As effective as prescription folic acid”

Focus Enhancement4%

“Definite improvement in focus”

Ease Of Use3%

“Easy to use”

Ease Of Chewing/Swallowing3%

“i have no problem swallowing”

What buyers complain about

Dosage8%

“Must be too high of a dose for me”

Taste-Overall7%

“Tastes bad”

Vitamin7%

“Do not buy these vitamins”

Functionality-Overall5%

“Not effective”

Side Effects5%

“it did say that this was a side effect”

Quality-Overall4%

“Its not as good as they make it seem”

Smell4%

“Nasty Smell”

Allergies3%

“Allergic”

Value For Money3%

“Waste of money”

Sleep Quality3%

“Doesn't keep me from falling asleep”

Top return reasons

Dosage17%

Functionality-Overall13%

Vitamin8%

Ease Of Use8%

Natural Ingredients6%

Advertised Vs Actual Product6%

Taste-Overall4%

Vegan/Organic4%

Acid Regulator/Stomach Ache Relief4%