---
title: "Vitamin B9 — $274K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-b9"
last_updated: "2026-08-09T21:37:56.942Z"
locale: en
meta:
description: "Niche score 48/100 · $274K/yr market · 197K searches/yr · $17.52 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $274K/yr market · 197K searches/yr · $17.52 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Vitamin B9 — $274K/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin b9**
**Skip it**
Soft demand (-7.5% this quarter) — this niche doesn't clear our bar today.
Market size 50Growth 21Conversion 79Competition 24Returns 100Price range 83Avg price 81Brand share 48Review moat 21Quality gap 21
**Returns**
**Incredible****0.0%**
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**
**Great****7.9%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Okay****$274K**
$274K/yr · 197K searches
**Brand share**
**Okay****76%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****72%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-7.5%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****12,051.06**
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 ~~](https://flapen.com/research/methodology)
## **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**
**93**
**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.
10K6KSpike '24Spike '25Prime Day '25 seasonDecMarJunAugNovMarMay
Peak months: Sep · busiest ÷ quietest = 2.9×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-b9/trend)
## **Top vitamin b9 search terms**
- **vitamin b9**51K/yr+0.8%7.5% conv. - **b9 vitamin**39K/yr-8.3%7.8% conv. - **vitamin b9 folic acid**11K/yr-2.3%8.9% conv. - **vitamin b9 folate**9K/yr+0.7%6.2% conv. - **folate b9**8K/yr-15.3%5.3% conv. - **vitamina b9**6K/yr-16.1%2.4% conv. - **vitamin b9 (folic acid) supplements**4K/yr-47.5%2.5% conv. - **b9 folate supplement**4K/yr-24.7%6.7% conv. - **vitamin b 9**3K/yr+18.8%5.5% conv. - **b9 vitamins for women**4K/yr-24.2%6.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-b9/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.
0%10%$27K20%$55K30%$82K40%$109K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Nutricost Folic Acid (Vitamin B9) 1000 mcg 240 Capsules**Nutricost**$12.37**4.7★15,265 rev](https://www.amazon.com/dp/B01IO43YO2) [2**Nature Made Folic Acid 400 mcg (665 mcg DFE) 250 Tablets**Nature Made**$5.18**4.8★29,982 rev](https://www.amazon.com/dp/B0000DJAPS) [3**THORNE - 5-MTHF - Methylfolate (Active B9 Folate) Supplement - Supports Cardiovascular Health Fetal Development Nerve Health Methylation & Homocysteine Levels* - 60 Servings - 5-MTHF 1mg**THORNE**$23.88**4.7★4,081 rev](https://www.amazon.com/dp/B00FY8IQ7C) [4**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**$21.67**4.6★9,407 rev](https://www.amazon.com/dp/B0938NKV1G) [5**Vitamatic Folic Acid 1000 mcg (1 mg) 240 Vegetarian Tablets | Vitamin B9**Vitamatic**$9.70**4.8★8,348 rev](https://www.amazon.com/dp/B099JC2YTF)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Bronson Super B Vitamin B Complex Sustained Release for Energy 60 Tablets**Bronson**$10.00**9,428 rev2y ago](https://www.amazon.com/dp/B0CT5Y3XK2) [**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**$20.35**131 rev2y ago](https://www.amazon.com/dp/B0CDF63YB9) [**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**$21.87**5,924 rev4y ago](https://www.amazon.com/dp/B0B83PXLXW) [**Vitamatic Folic Acid 1000 mcg (1 mg) 240 Vegetarian Tablets | Vitamin B9**Vitamatic**$9.70**8,348 rev5y ago](https://www.amazon.com/dp/B099JC2YTF) [**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**$21.67**9,407 rev5y ago](https://www.amazon.com/dp/B0938NKV1G)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$20.35**4.6★**▲ 121%**](https://www.amazon.com/dp/B0CDF63YB9) [**Pure Encapsulations - Folate 5 000 - Activated Vitamin B9 as 5-Methyltetrahydrofolate (5-MTHF) - 60 Capsules**Pure Encapsulations**$70.28**4.3★**▲ 61%**](https://www.amazon.com/dp/B06XPXZ3ZX) [**Herb-Science Liquid Vitamin B9 Folic Acid Drops Alcohol-Free 1 Oz**Herb-Science**$22.14**4.6★**▲ 52%**](https://www.amazon.com/dp/B07DP87XMK) [**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**$21.87**4.5★**▲ 40%**](https://www.amazon.com/dp/B0B83PXLXW) [**Jarrow Formulas Methyl B-12 & Methyl Folate Bioactive Vitamin B9 and Vitamin B12 Supplement Supports Cellular Energy Production Healthy Brain Function & Metabolism 60 Chewable Tablets 60 Servings**Jarrow Formulas**$28.54**4.7★**▲ 38%**](https://www.amazon.com/dp/B00OGXIGOE)
**~~View all trending →~~**
## **What buyers say about vitamin b9**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**17%
*“Trusted Quality at a Great Price”*
**Value For Money**11%
*“Great value”*
**Vitamin**11%
*“Great vitamin”*
**Advertised Vs Actual Product**8%
*“As advertised”*
**Energy Level**7%
*“Energy Boost”*
**Taste-Overall**5%
*“No aftertaste and no issues with tolerability”*
**Efficiency**5%
*“As effective as prescription folic acid”*
**Focus Enhancement**4%
*“Definite improvement in focus”*
**Ease Of Use**3%
*“Easy to use”*
**Ease Of Chewing/Swallowing**3%
*“i have no problem swallowing”*
### **What buyers complain about **
**Dosage**8%
*“Must be too high of a dose for me”*
**Taste-Overall**7%
*“Tastes bad”*
**Vitamin**7%
*“Do not buy these vitamins”*
**Functionality-Overall**5%
*“Not effective”*
**Side Effects**5%
*“it did say that this was a side effect”*
**Quality-Overall**4%
*“Its not as good as they make it seem”*
**Smell**4%
*“Nasty Smell”*
**Allergies**3%
*“Allergic”*
**Value For Money**3%
*“Waste of money”*
**Sleep Quality**3%
*“Doesn't keep me from falling asleep”*
### **Top return reasons **
**Dosage**17%
**Functionality-Overall**13%
**Vitamin**8%
**Ease Of Use**8%
**Natural Ingredients**6%
**Advertised Vs Actual Product**6%
**Taste-Overall**4%
**Vegan/Organic**4%
**Acid Regulator/Stomach Ache Relief**4%
**Quality-Overall**4%
## **Common questions**
- **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.
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