---
title: "Vitamin B2 — $2.4M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-b2"
last_updated: "2026-08-06T18:39:11.380Z"
locale: en
meta:
description: "Niche score 56/100 · $2.4M/yr market · 1.1M searches/yr · $14.23 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 56/100 · $2.4M/yr market · 1.1M searches/yr · $14.23 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Vitamin B2 — $2.4M/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin b2**
**Launch it**
A $2.4M/yr market growing +0.4% this quarter with returns at 0.0% — clears our launch bar.
Market size 95Growth 26Conversion 97Competition 23Returns 100Price range 64Avg price 69Brand share 41Review moat 31Quality gap 20
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****15.5%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Incredible****$2.4M**
$2.4M/yr · 1.1M searches
**Avg price**
**Good****$14.23**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$6.14–$30.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****80%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****3,424.38**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+0.4%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****73%**
top-5 click share — a locked-up shelf
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, vitamin b2 is a $2.4M/yr Amazon United States market (1.1M searches/yr). The top 5 brands hold 80% of demand. Verdict: Launch it — 56/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin b2 market data**
- **Units sold / yr**
- **150K–200K**
- avg 12,500–15,000/product
- **Revenue / yr**
- **$2.1M–$2.8M**
- units × avg price
- **Conversion rate**
- **15.5%**
- **Avg BSR**
- **#154**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **77%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **82 months**
- **Avg seller age**
- **152 days**
## **Competition & brand share**
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**11 **▼falling
**Sellers**
**28**
**Top-5 brand share**
**80%**
Top 20: 100%
**Top-5 click share**
**73%**
Top 20: 100%
**Open market**
**14%**
- Nutricost41% - ForestLeaf15% - Nature's Bounty10% - Carlyle8% - NOW Foods6% - Healthfare6% - Open — no brand owns it (5 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +0.4% search growth over the last 90 days.
25K15KSpike '24Prime Day '25Spike '25Spike '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-b2/trend)
## **Top vitamin b2 search terms**
- **vitamin b2**213K/yr+9.4%13.7% conv. - **riboflavin**169K/yr-9.5%12.2% conv. - **b2 vitamins**157K/yr-17.2%13.1% conv. - **riboflavin 400mg**123K/yr-12.7%15.9% conv. - **vitamin b2 400 mg**58K/yr-13.4%16.1% conv. - **riboflavin vitamin b2**50K/yr-2.4%15.7% conv. - **b2 400mg**28K/yr+52.6%17.0% conv. - **vitamin b2 riboflavin 400mg**12K/yr+128.5%16.0% conv. - **b2 riboflavin 400mg**21K/yr+17.0%15.5% conv. - **riboflavin 200mg**23K/yr-14.9%11.9% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-b2/search-terms)
## **Top vitamin b2 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%$244K20%$487K30%$731K40%$975K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nutricost Vitamin B2 (Riboflavin) 400mg 120 Capsules Gluten Free**Nutricost**$14.62**4.7★16,288 rev](https://www.amazon.com/dp/B01IG5JH90) [2**ForestLeaf Vitamin B2 Riboflavin 400mg - Energy Skin & Cellular Health Supplement - Nervous System Support - Vitamin B 2 VIT B - Non-GMO & Gluten Free - B2 Vitamin 400mg Vegetable Capsules 90 Count**ForestLeaf**$16.82**4.7★10,803 rev](https://www.amazon.com/dp/B07NF6B6Y1) [3**Natures Bounty Vitamin B B-2 Vitamin 100mg as Riboflavin Supplement Aids Energy Metabolism 100 Vegetarian Coated Tablets 100 Day Supply**Nature's Bounty**$8.09**4.7★1,134 rev](https://www.amazon.com/dp/B00IG04LJC) [4**NOW Supplements Vitamin B-2 (Riboflavin) 100 mg Energy Production* 100 Veg Capsules**NOW Foods**$6.14**4.7★4,191 rev](https://www.amazon.com/dp/B000MGSH1Q) [5**Nutricost Vitamin B2 (Riboflavin) 100mg 120 Capsules Gluten Free**Nutricost**$9.86**4.7★5,453 rev](https://www.amazon.com/dp/B07KYWQ4LS)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vitamin B2 Riboflavin 400mg | 240 Softgels with Coconut Oil | Highly Bioavailable | Extra Strength Vitamin B Energy Supplements | Essential B Vitamins for Women & Men | Non-GMO Gluten Free**Micro Ingredients**$18.29**220 rev1y ago](https://www.amazon.com/dp/B0F5M2GGC3) [**Carlyle Vitamin B2 200mg | 150 Count | Riboflavin**Carlyle**$10.02**493 rev3y ago](https://www.amazon.com/dp/B0C4RM6M5F) [**Healthfare Vitamin B2 Riboflavin 400mg | 180 Vegan Capsules | High Potency | Non-GMO | Gluten-Free | Made in USA**Healthfare**$10.07**1,170 rev4y ago](https://www.amazon.com/dp/B0B7VJMBL8) [**kindnature Vitamin B2 Gummies - Riboflavin 400mg Supplement for Kids & Adults - Non-GMO Soy & Gluten-Free Vegan Chewable Gummies (30 Day Supply)**kindnature**$21.58**869 rev4y ago](https://www.amazon.com/dp/B0B54MT26C) [**Carlyle Vitamin B-2 400mg | 180 Count | B2 Riboflavin**Carlyle**$6.91**1,172 rev4y ago](https://www.amazon.com/dp/B09PMXYTCF)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**NOW Supplements Vitamin B-2 (Riboflavin) 100 mg Energy Production* 100 Veg Capsules**NOW Foods**$6.14**4.7★**▲ 23%**](https://www.amazon.com/dp/B000MGSH1Q) [**DEAL SUPPLEMENT Vitamin B2 400mg (Riboflavin) | with Magnesium Glycinate 400mg 240 Capsules 2 in 1 Support Healthy Nervous System Mood Blood & Energy Production Non-GMO**Deal Supplement**$19.07**4.7★**▲ 15%**](https://www.amazon.com/dp/B085PZLP29) [**Natures Bounty Vitamin B B-2 Vitamin 100mg as Riboflavin Supplement Aids Energy Metabolism 100 Vegetarian Coated Tablets 100 Day Supply**Nature's Bounty**$8.09**4.7★**▲ 14%**](https://www.amazon.com/dp/B00IG04LJC) [**Healthfare Vitamin B2 Riboflavin 400mg | 180 Vegan Capsules | High Potency | Non-GMO | Gluten-Free | Made in USA**Healthfare**$10.07**4.7★**▲ 14%**](https://www.amazon.com/dp/B0B7VJMBL8) [**kindnature Vitamin B2 Gummies - Riboflavin 400mg Supplement for Kids & Adults - Non-GMO Soy & Gluten-Free Vegan Chewable Gummies (30 Day Supply)**kindnature**$21.58**4.5★**▲ 11%**](https://www.amazon.com/dp/B0B54MT26C)
**~~View all trending →~~**
## **What buyers say about vitamin b2**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**22%
*“It has been of a consistent quality”*
**Vitamin**17%
*“This vitamin is easy to swallow”*
**Value For Money**9%
*“Theyre affordable”*
**Advertised Vs Actual Product**7%
*“As advertised and prompt delivery”*
**Ease Of Chewing/Swallowing**6%
*“Ease of swallowing and other benefits”*
**Dosage**5%
*“The 100mg dosage is perfect for my needs”*
**Taste-Overall**4%
*“Leaves no after taste”*
**Energy Level**3%
*“Gives you great energy”*
**Efficiency**3%
*“efficient”*
**Sleep Quality**2%
*“does help with sleep”*
### **What buyers complain about **
**Color**9%
*“But does make my urine very yellow”*
**Dosage**9%
*“This is not a 400 mg pill”*
**Taste-Overall**9%
*“Moldy taste and smell”*
**Size-Overall**8%
*“Tiny”*
**Smell**5%
*“I hope no one smelled it”*
**Functionality-Overall**5%
*“Dont work”*
**Advertised Vs Actual Product**3%
*“Deceptive marketing”*
**Cough Relief**3%
*“For 1 week Ive been taking this and I have a weird cough throat irritation nausea burning sensation in stomach and dizzy wonky”*
**Quality-Overall**3%
*“Very disappointed with the lack of quality control”*
**Sleep Quality**3%
*“It was advertise to help you sleep. It did absolutely nothing for me.”*
### **Top return reasons **
**Contamination**20%
**Leak-Proof**20%
**Dosage**20%
**Vitamin**20%
**Visibility**20%
## **Common questions**
- **Is vitamin b2 profitable to sell on Amazon United States?**
- The niche generates $2.4M/yr across 13 tracked products. 90-day search growth is +0.4%. Flapen's verdict: Launch it (56/100).
- **How competitive is the vitamin b2 niche?**
- 11 brands and 28 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 80% of demand.
- **What do buyers complain about in vitamin b2?**
- Top complaints mined from reviews: Color, Dosage, Taste-Overall. The return rate is 0.0%.
- **When does demand for vitamin b2 peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the vitamin b2 niche?**
- Listings span $6.14–$30.99; the average listing price is $14.23 (sweet spot $15–$100). The average incumbent carries 3,424 reviews — the moat a new listing must climb.
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