Riboflavin 400mg
FailThe top 5 products take 89% of clicks, so Riboflavin 400mg is a Fail.
- Flapen Score
- 48 / 100Ranks 7,720 of 14,768 Health & Household niches · −1 vs the category median of 4948
- Market size
- $778K/yr280K searches / yr
- 90-day growth
- -8.4%search demand this quarter
- Competition
- 89%top-5 click share · 9 brands · 10 sellers
Flapen Score
Riboflavin 400mg against its category
The dotted line is the Health & Household average. Past it, Riboflavin 400mg is stronger. Inside it, weaker.
Market
The Riboflavin 400mg market on Amazon at a glance
Shoppers on Amazon United States searched for Riboflavin 400mg 280K times last year and spent an estimated $778K. The top 5 brands take 89% of clicks. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 16.7% of those searches ended in a purchase.
Shoppers searched for this 280K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 16.7% of those searches ended in a purchase. Searches in the last 90 days moved -8.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $778K a year.
- Searches, last 12 months
- 280K
- Growth, 90 days vs prior 90
- -8.4%
- Conversion, latest week
- 16.7%
- Market size, estimated
- $778Ka year
- Peak month
- February1.3× the quietest month
- Top search term
- riboflavin 400mg123K searches a year
02 · Price
A sale here is worth $16.58.
Listings sell for $16.58 on average, from $6.91 to $30.99. Amazon reports units sold in ranges. This niche sold 50K to 60K a year. The average listing sells 5,000 to 6,000 of them. At $16.58 that is $83K to $99K a year per listing.
- Average price
- $16.58inside the $15 to $100 sweet spot
- Price range
- $6.91–$30.99
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 50K–60K
- Units per listing a year
- 5,000–6,000
- Revenue per listing a year
- $83K–$99K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
100% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #104 within Vitamin B. It carries 3,669 reviews at 4.68 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #104in Vitamin B
- Average rating
- 4.68 starsAmazon United States average 4.42 stars
- Average reviews
- 3,669per listing
- Listings tracked
- 9
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 85 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 85 months
Products
Top Riboflavin 400mg products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 28, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Nutricost Vitamin B2 (Riboflavin) 400mg 120 Capsules Gluten Free
- Price
- $14.62
- Rating
- 4.7/5
- Reviews
- 16,288
- Age
- 10y ago

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
- Price
- $16.82
- Rating
- 4.7/5
- Reviews
- 10,803
- Age
- 7y ago

Healthfare Vitamin B2 Riboflavin 400mg | 180 Vegan Capsules | High Potency | Non-GMO | Gluten-Free | Made in USA
- Price
- $10.07
- Rating
- 4.7/5
- Reviews
- 1,170
- Age
- 4y ago

Carlyle Vitamin B-2 400mg | 180 Count | B2 Riboflavin
- Price
- $6.91
- Rating
- 4.6/5
- Reviews
- 1,172
- Age
- 4y ago

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
- Price
- $30.99
- Rating
- 4.8/5
- Reviews
- 586
- Age
- 24y ago
Trending
estimated 90-day click momentum
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
- Price
- $30.99
- Rating
- 4.8/5
- Reviews
- 586
- Age
- 24y ago

Healthfare Vitamin B2 Riboflavin 400mg | 180 Vegan Capsules | High Potency | Non-GMO | Gluten-Free | Made in USA
- Price
- $10.07
- Rating
- 4.7/5
- Reviews
- 1,170
- Age
- 4y ago

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
- Price
- $19.07
- Rating
- 4.7/5
- Reviews
- 1,324
- Age
- 6y ago

NatureBell Vitamin B2 (Riboflavin) 400mg - 240 Capsules - Supplement for Energy Skin & Cellular Health* - Non-GMO & Gluten Free - Easily Absorbed
- Price
- $19.84
- Rating
- 4.6/5
- Reviews
- 640
- Age
- 3y ago

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
- Price
- $16.82
- Rating
- 4.7/5
- Reviews
- 10,803
- Age
- 7y ago
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
- Price
- $18.29
- Rating
- 4.7/5
- Reviews
- 220
- Age
- 1y ago

NatureBell Vitamin B2 (Riboflavin) 400mg - 240 Capsules - Supplement for Energy Skin & Cellular Health* - Non-GMO & Gluten Free - Easily Absorbed
- Price
- $19.84
- Rating
- 4.6/5
- Reviews
- 640
- Age
- 3y ago

Healthfare Vitamin B2 Riboflavin 400mg | 180 Vegan Capsules | High Potency | Non-GMO | Gluten-Free | Made in USA
- Price
- $10.07
- Rating
- 4.7/5
- Reviews
- 1,170
- Age
- 4y ago

Carlyle Vitamin B-2 400mg | 180 Count | B2 Riboflavin
- Price
- $6.91
- Rating
- 4.6/5
- Reviews
- 1,172
- Age
- 4y ago

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
- Price
- $19.07
- Rating
- 4.7/5
- Reviews
- 1,324
- Age
- 6y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 89% of clicks. A locked shelf that new listings rarely crack.
Brands
9 rising
Sellers
10
Est. top-5 brand share
89%
Top 20: 100%
Est. top-5 click share
89%
Top 20: 100%
Open market
8%
- Nutricost42%
- ForestLeaf21%
- Healthfare11%
- Carlyle10%
- THORNE4%
- Deal Supplement3%
- Open — no brand owns it (3 brands, 8%)
Demand
Riboflavin 400mg search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3×
Search terms
Top Riboflavin 400mg search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- riboflavin 400mg123K/yr
- vitamin b2 400 mg58K/yr
- b2 400mg28K/yr
- b2 riboflavin 400mg21K/yr
- vitamin b2 400mg5K/yr
- riboflavin 400 mg5K/yr
- vit b2 riboflavin 400mg4K/yr
- vitamin b2 500mg2K/yr
- b2 vitamin 400mg23K/yr
- vitamin b 2 riboflavin 4003K/yr
Reviews and returns
What reviews say buyers love and hate about Riboflavin 400mg
We read the reviews and the return reasons for every product selling here.
“This is not a 400 mg pill”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Riboflavin 400mg questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









