---
title: "Riboflavin 200mg — $107K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/riboflavin-200mg"
last_updated: "2026-08-11T21:49:07.066Z"
locale: en
meta:
description: "Niche score 40/100 · $107K/yr market · 47K searches/yr · $14.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · $107K/yr market · 47K searches/yr · $14.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Riboflavin 200mg — $107K/yr Amazon US Niche (2026) - Flapen"
---
# **riboflavin 200mg**
**Skip it**
A concentrated shelf (top 5 take 86% of clicks) — this niche doesn't clear our bar today.
Market size 26Growth 20Conversion 97Competition 12Returns 100Price range 64Avg price 71Brand share 20Review moat 25Quality gap 16
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****15.6%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$14.54**
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
**Market size**
**Okay****$107K**
$107K/yr · 47K searches
**Review moat**
**Bad****4,868.63**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-10.4%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
**Quality gap**
**Bad****4.8★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****86%**
top-5 click share — a locked-up shelf
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, riboflavin 200mg is a $107K/yr Amazon United States market (47K searches/yr). The top 5 brands hold 92% of demand. Verdict: Skip it — 40/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **riboflavin 200mg market data**
- **Units sold / yr**
- **6K–8K**
- avg 750–1,000/product
- **Revenue / yr**
- **$87K–$116K**
- units × avg price
- **Conversion rate**
- **15.6%**
- **Avg BSR**
- **#150**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **50%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **98 months**
- **Avg seller age**
- **178 days**
## **Competition & brand share**
The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▼falling
**Sellers**
**26**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**86%**
Top 20: 100%
**Open market**
**3%**
- Carlyle46% - Nutricost20% - Nature's Bounty12% - ForestLeaf8% - THORNE6% - NOW Foods5% - Open — no brand owns it (1 brand, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 87 weeks — -10.4% search growth over the last 90 days.
1K600Spike '25Spike '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/health-household/riboflavin-200mg/trend)
## **Top riboflavin 200mg search terms**
- **riboflavin 200mg**23K/yr-14.9%11.7% conv. - **vitamin b2 200mg**17K/yr-12.2%12.7% conv. - **b2 200mg**8K/yr+5.3%14.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/riboflavin-200mg/search-terms)
## **Top riboflavin 200mg 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%15%$16K30%$32K45%$48K60%$64K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Carlyle Vitamin B2 200mg | 150 Count | Riboflavin**Carlyle**$10.02**4.7★493 rev](https://www.amazon.com/dp/B0C4RM6M5F) [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**Nutricost Vitamin B2 (Riboflavin) 100mg 120 Capsules Gluten Free**Nutricost**$9.86**4.7★5,453 rev](https://www.amazon.com/dp/B07KYWQ4LS) [4**Nutricost Vitamin B2 (Riboflavin) 400mg 120 Capsules Gluten Free**Nutricost**$14.62**4.7★16,288 rev](https://www.amazon.com/dp/B01IG5JH90) [5**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)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**BulkSupplements.com Riboflavin Capsules - 200mg 240 Count (Pack of 1)**BulkSupplements**$19.79**1 rev1y ago](https://www.amazon.com/dp/B0FCNBGFBF) [**Carlyle Vitamin B2 200mg | 150 Count | Riboflavin**Carlyle**$10.02**493 rev3y ago](https://www.amazon.com/dp/B0C4RM6M5F) [**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**10,803 rev7y ago](https://www.amazon.com/dp/B07NF6B6Y1) [**Nutricost Vitamin B2 (Riboflavin) 100mg 120 Capsules Gluten Free**Nutricost**$9.86**5,453 rev7y ago](https://www.amazon.com/dp/B07KYWQ4LS) [**Nutricost Vitamin B2 (Riboflavin) 400mg 120 Capsules Gluten Free**Nutricost**$14.62**16,288 rev10y ago](https://www.amazon.com/dp/B01IG5JH90)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BulkSupplements.com Riboflavin Capsules - 200mg 240 Count (Pack of 1)**BulkSupplements**$19.79**5.0★**▲ 263%**](https://www.amazon.com/dp/B0FCNBGFBF) [**NOW Supplements Vitamin B-2 (Riboflavin) 100 mg Energy Production* 100 Veg Capsules**NOW Foods**$6.14**4.7★**▲ 28%**](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★**▲ 19%**](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★**— 4%**](https://www.amazon.com/dp/B00IG04LJC) [**Nutricost Vitamin B2 (Riboflavin) 400mg 120 Capsules Gluten Free**Nutricost**$14.62**4.7★**— 0%**](https://www.amazon.com/dp/B01IG5JH90)
**~~View all trending →~~**
## **What buyers say about riboflavin 200mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**23%
*“It has been of a consistent quality”*
**Vitamin**19%
*“This vitamin is easy to swallow”*
**Value For Money**7%
*“Theyre affordable”*
**Advertised Vs Actual Product**7%
*“As advertised and prompt delivery”*
**Ease Of Chewing/Swallowing**6%
*“Easy to swallow”*
**Efficiency**4%
*“efficient”*
**Energy Level**4%
*“it helped boost my energy”*
**Dosage**3%
*“The 100mg dosage is perfect for my needs”*
**Nutritional Content**3%
*“I feel great taking this”*
**Side Effects**2%
*“I've only been taking for 2 days so I'm excited to see the outcome”*
### **What buyers complain about **
**Color**10%
*“But does make my urine very yellow”*
**Smell**9%
*“I hope no one smelled it”*
**Size-Overall**8%
*“Although the capsules are large”*
**Dosage**6%
*“Finding 400 mg was a challenge”*
**Sleep Quality**5%
*“It was advertise to help you sleep. It did absolutely nothing for me.”*
**Functionality-Overall**4%
*“Dont work”*
**Advertised Vs Actual Product**4%
*“Photos of the product doesnt help me at all”*
**Allergies**4%
*“I had a severe allergic reaction to this”*
**Magnesium**4%
*“this contains magnesium stearate a known migraine trigger”*
**Energy Level**4%
*“I noticed less energy”*
### **Top return reasons **
**Visibility**20%
**Contamination**20%
**Leak-Proof**20%
**Dosage**20%
**Vitamin**20%
## **Common questions**
- **Is riboflavin 200mg profitable to sell on Amazon United States?**
- The niche generates $107K/yr across 8 tracked products. 90-day search growth is -10.4%. Flapen's verdict: Skip it (40/100).
- **How competitive is the riboflavin 200mg niche?**
- 7 brands and 26 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 92% of demand.
- **What do buyers complain about in riboflavin 200mg?**
- Top complaints mined from reviews: Color, Smell, Size-Overall. The return rate is 0.0%.
- **When does demand for riboflavin 200mg peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the riboflavin 200mg niche?**
- Listings span $6.14–$30.99; the average listing price is $14.54 (sweet spot $15–$100). The average incumbent carries 4,869 reviews — the moat a new listing must climb.
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