---
title: "Vitamin B2 100mg — $117K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-b2-100mg"
last_updated: "2026-08-09T20:23:31.782Z"
locale: en
meta:
description: "Niche score 41/100 · $117K/yr market · 51K searches/yr · $12.18 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $117K/yr market · 51K searches/yr · $12.18 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Vitamin B2 100mg — $117K/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin b2 100mg**
**Skip it**
A concentrated shelf (top 5 take 87% of clicks) — this niche doesn't clear our bar today.
Market size 27Growth 19Conversion 99Competition 11Returns 100Price range 64Avg price 52Brand share 29Review moat 48Quality gap 19
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****18.9%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$6.14–$30.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****$12.18**
avg listing price — sweet spot $15–$100
**Review moat**
**Okay****1,747.56**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****87%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$117K**
$117K/yr · 51K searches
**Growth**
**Bad****-11.3%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****87%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, vitamin b2 100mg is a $117K/yr Amazon United States market (51K searches/yr). The top 5 brands hold 87% of demand. Verdict: Skip it — 41/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin b2 100mg market data**
- **Units sold / yr**
- **10K–13K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **$122K–$152K**
- units × avg price
- **Conversion rate**
- **18.9%**
- **Avg BSR**
- **#393**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **44%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **109 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **—flat
**Sellers**
**31**
**Top-5 brand share**
**87%**
Top 20: 100%
**Top-5 click share**
**87%**
Top 20: 100%
**Open market**
**9%**
- Nutricost39% - Nature's Bounty25% - NOW Foods14% - Solgar5% - Horbäach4% - Best Naturals4% - Open — no brand owns it (3 brands, 9%)
## **Demand & seasonality**
Weekly Amazon search volume, last 102 weeks — -11.3% search growth over the last 90 days.
1K750Spike '24Holiday '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-b2-100mg/trend)
## **Top vitamin b2 100mg search terms**
- **b2 100mg**13K/yr-4.3%17.5% conv. - **vitamin b2 100mg**19K/yr-17.3%16.3% conv. - **riboflavin 100mg**13K/yr-7.5%15.9% conv. - **b-2 vitamin 100mg**4K/yr-5.6%14.4% conv. - **b2 vitamins 100mg**3K/yr-35.0%11.9% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-b2-100mg/search-terms)
## **Top vitamin b2 100mg 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%$12K20%$23K30%$35K40%$47K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nutricost Vitamin B2 (Riboflavin) 100mg 120 Capsules Gluten Free**Nutricost**$9.86**4.7★5,453 rev](https://www.amazon.com/dp/B07KYWQ4LS) [2**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) [3**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) [4**Solgar Vitamin B2 (Riboflavin) 100mg 100 Vegetable Capsules - Energy Metabolism Healthy Nervous System - Non-GMO Vegan Gluten Free Dairy Free Kosher - 100 Servings**Solgar**$9.61**4.7★1,936 rev](https://www.amazon.com/dp/B00020IAJG) [5**Horbach Vitamin B2 100mg | 180 Capsules | Riboflavin Supplement**Horbäach**$6.59**4.7★282 rev](https://www.amazon.com/dp/B0CZF6N44L)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Doc Mila Vitamin B2 100mg Gummies for Adults and Kids - Riboflavin 100 mg Gummy - VIT B2 Supplements**Doc Mila**$20.41**126 rev2y ago](https://www.amazon.com/dp/B0D5CRPQHK) [**Horbach Vitamin B2 100mg | 180 Capsules | Riboflavin Supplement**Horbäach**$6.59**282 rev2y ago](https://www.amazon.com/dp/B0CZF6N44L) [**Nutricost Vitamin B2 (Riboflavin) 100mg 120 Capsules Gluten Free**Nutricost**$9.86**5,453 rev7y ago](https://www.amazon.com/dp/B07KYWQ4LS) [**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**1,134 rev12y ago](https://www.amazon.com/dp/B00IG04LJC) [**Best Naturals Vitamin B2 (Riboflavin) 100 mg 180 Tablets - Premium Formula - 3rd Party Lab Tested**Best Naturals**$9.68**1,014 rev12y ago](https://www.amazon.com/dp/B00GXE4710)
**~~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★**▲ 34%**](https://www.amazon.com/dp/B000MGSH1Q) [**THORNE - Riboflavin 5-Phosphate - Bioactive Tissue Ready Form of Vitamin B2 for Methylation Support* - Vitamin B2 Supplement - Third-Party Certified - Gluten Dairy & Soy-Free - 60 Capsules**THORNE**$30.99**4.8★**▲ 24%**](https://www.amazon.com/dp/B0797MLY4M) [**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★**▲ 13%**](https://www.amazon.com/dp/B00IG04LJC) [**Best Naturals Vitamin B2 (Riboflavin) 100 mg 180 Tablets - Premium Formula - 3rd Party Lab Tested**Best Naturals**$9.68**4.7★**— 1%**](https://www.amazon.com/dp/B00GXE4710) [**Natures Way Riboflavin Vitamin B2 Cellular Energy Support* 100 ct**Nature's Way**$8.29**4.7★**— 5%**](https://www.amazon.com/dp/B00016AFS0)
**~~View all trending →~~**
## **What buyers say about vitamin b2 100mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**24%
*“it has the top-notch quality I've come to expect”*
**Vitamin**20%
*“This b2 vitamin supplement is amazing”*
**Value For Money**11%
*“Theyre affordable”*
**Taste-Overall**10%
*“No aftertaste”*
**Ease Of Chewing/Swallowing**8%
*“Easy to swallow”*
**Efficiency**4%
*“efficient”*
**Energy Level**4%
*“The supplement gives me energy”*
**Nutritional Content**3%
*“Great supplement”*
**Advertised Vs Actual Product**2%
*“Works as Expected”*
**Ingredients-Overall**2%
*“Great quality ingredients from a name-brand I've come to trust with my vitamin needs”*
### **What buyers complain about **
**Color**17%
*“Makes you pee yellow”*
**Smell**14%
*“distinct smell when you open the bottle”*
**Size-Overall**13%
*“Tiny”*
**Functionality-Overall**8%
*“Dont work”*
**Vitamin**5%
*“When I got the package it does not say any thing about vitamin B. Just B2”*
**Dosage**4%
*“the capsules are too big for 100 mg”*
**Taste-Overall**4%
*“No noticeable taste or smell”*
**Advertised Vs Actual Product**3%
*“Not correct as shown”*
**Sleep Quality**3%
*“My body shut down for a nap”*
**Quality-Overall**3%
*“not necessarily the best quality or the cheapest. if that is important to you”*
### **Top return reasons **
**Contamination**50%
**Vitamin**50%
## **Common questions**
- **Is vitamin b2 100mg profitable to sell on Amazon United States?**
- The niche generates $117K/yr across 9 tracked products. 90-day search growth is -11.3%. Flapen's verdict: Skip it (41/100).
- **How competitive is the vitamin b2 100mg niche?**
- 9 brands and 31 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 87% of demand.
- **What do buyers complain about in vitamin b2 100mg?**
- Top complaints mined from reviews: Color, Smell, Size-Overall. The return rate is 0.0%.
- **When does demand for vitamin b2 100mg peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the vitamin b2 100mg niche?**
- Listings span $6.14–$30.99; the average listing price is $12.18 (sweet spot $15–$100). The average incumbent carries 1,748 reviews — the moat a new listing must climb.
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