Riboflavin 400mg
FailPrices span $4.63–$15.81, mostly outside the sweet spot, so Riboflavin 400mg is a Fail.
- Flapen Score
- 40 / 100Ranks 1,670 of 2,035 Health & Personal Care niches · −8 vs the category median of 4840
- Market size
- £76K/yr45K searches / yr
- 90-day growth
- -14.9%search demand this quarter
- Competition
- 90%top-5 click share · 8 brands · 17 sellers
Flapen Score
Riboflavin 400mg against its category
The dotted line is the Health & Personal Care average. Past it, Riboflavin 400mg is stronger. Inside it, weaker.
Market
The Riboflavin 400mg market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Riboflavin 400mg 45K times last year and spent an estimated £76K. The top 5 brands take 90% of clicks. Flapen scores it 40 out of 100, a Fail.
01 · Demand
An estimated 15.9% of those searches ended in a purchase.
Shoppers searched for this 45K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 15.9% of those searches ended in a purchase. Searches in the last 90 days moved -14.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated £76K a year.
- Searches, last 12 months
- 45K
- Growth, 90 days vs prior 90
- -14.9%
- Conversion, latest week
- 15.9%
- Market size, estimated
- £76Ka year
- Peak month
- March1.4× the quietest month
- Top search term
- riboflavin 400mg24K searches a year
02 · Price
A sale here is worth £10.66.
Listings sell for £10.66 on average, from £4.63 to £15.81. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 500 to 750 of them. At £10.66 that is £5K to £8K a year per listing.
- Average price
- £10.66under the $15 to $100 sweet spot
- Price range
- £4.63–£15.81
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 500–750
- Revenue per listing a year
- £5K–£8K
- Returns
- 0.0%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
75% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.7% of listings are out of stock. The average listing ranks #6 within Vitamins. It carries 2,267 reviews at 4.36 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 75%
- Prime listings
- 100%
- Out of stock, average day
- 1.7%
- Average rank
- #6in Vitamins
- Average rating
- 4.36 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 2,267per listing
- Listings tracked
- 8
04 · Newcomers
0 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 71 months on average, so the names here are established.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 71 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 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Vitamin B2 Riboflavin 400mg Migraine Support 120 Capsules 4 Months Supply
- Price
- £13.37
- Rating
- 4.6/5
- Reviews
- 801
- Age
- 3y ago

Vitamin B2 Riboflavin | 400mg Migraine Support 180 Capsules | 6 Months Supply | Vegan High Strength Riboflavin Supplement | Liposomal Delivery for Maximum Absorption | Non-GMO | UK Company
- Price
- £11.00
- Rating
- 4.3/5
- Reviews
- 75
- Age
- 1y ago

Nutricost Vitamin B2 (Riboflavin) 400mg 120 Capsules - Gluten Free Non-GMO Energy Boost Premium Quality
- Price
- £13.19
- Rating
- 4.6/5
- Reviews
- 14,807
- Age
- 9y ago

MigraSoothe Original Vitamin B2 Riboflavin 400mg Capsules for Adults - High Strength Daily Supplement for Migraine Wellness Routine and Energy Metabolism - Vegan Made in UK 30 Capsules
- Price
- £10.87
- Rating
- 4.3/5
- Reviews
- 113
- Age
- 4y ago

Vitamin B2 Riboflavin 200mg | 120 Vegan Tablets (4 Months Supply) | High Strength Supplement | No Artificial Preservatives | by Horbaach
- Price
- £8.47
- Rating
- 4.6/5
- Reviews
- 50
- Age
- 1y ago
Trending
estimated 90-day click momentum
Vitamin B2 Riboflavin Supplement 60 Vegan Tablets for Men & Women High Strength Made in the UK
- Price
- £4.63
- Rating
- 3.4/5
- Reviews
- 4
- Age
- 8mo ago

Vitamin B2 Riboflavin | 400mg Migraine Support 180 Capsules | 6 Months Supply | Vegan High Strength Riboflavin Supplement | Liposomal Delivery for Maximum Absorption | Non-GMO | UK Company
- Price
- £11.00
- Rating
- 4.3/5
- Reviews
- 75
- Age
- 1y ago

MigraSoothe Original Vitamin B2 Riboflavin 400mg Capsules for Adults - High Strength Daily Supplement for Migraine Wellness Routine and Energy Metabolism - Vegan Made in UK 30 Capsules
- Price
- £10.87
- Rating
- 4.3/5
- Reviews
- 113
- Age
- 4y ago

Solgar Vitamin B2 (Riboflavin) 100 mg Vegetable Capsules - Pack of 100 - Supports Energy Production - Can Help Reduce Tiredness and Fatigue - Vegan and Gluten-Free
- Price
- £7.95
- Rating
- 4.6/5
- Reviews
- 1,887
- Age
- 16y ago

Vitamin B2 Riboflavin 200mg | 120 Vegan Tablets (4 Months Supply) | High Strength Supplement | No Artificial Preservatives | by Horbaach
- Price
- £8.47
- Rating
- 4.6/5
- Reviews
- 50
- Age
- 1y ago
Newest
by launch date
Vitamin B2 Riboflavin Supplement 60 Vegan Tablets for Men & Women High Strength Made in the UK
- Price
- £4.63
- Rating
- 3.4/5
- Reviews
- 4
- Age
- 8mo ago

Vitamin B2 Riboflavin | 400mg Migraine Support 180 Capsules | 6 Months Supply | Vegan High Strength Riboflavin Supplement | Liposomal Delivery for Maximum Absorption | Non-GMO | UK Company
- Price
- £11.00
- Rating
- 4.3/5
- Reviews
- 75
- Age
- 1y ago

Vitamin B2 Riboflavin 200mg | 120 Vegan Tablets (4 Months Supply) | High Strength Supplement | No Artificial Preservatives | by Horbaach
- Price
- £8.47
- Rating
- 4.6/5
- Reviews
- 50
- Age
- 1y ago

Vitamin B2 Riboflavin 400mg Migraine Support 120 Capsules 4 Months Supply
- Price
- £13.37
- Rating
- 4.6/5
- Reviews
- 801
- Age
- 3y ago

MigraSoothe Original Vitamin B2 Riboflavin 400mg Capsules for Adults - High Strength Daily Supplement for Migraine Wellness Routine and Energy Metabolism - Vegan Made in UK 30 Capsules
- Price
- £10.87
- Rating
- 4.3/5
- Reviews
- 113
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 90% of clicks. A locked shelf that new listings rarely crack.
Brands
8 rising
Sellers
17
Est. top-5 brand share
90%
Top 20: 100%
Est. top-5 click share
90%
Top 20: 100%
Open market
6%
- Health4All40%
- MetaSuperfoods20%
- Nutricost18%
- Bespoke Biotics7%
- Horbäach5%
- ARC) HEALTH+NUTRITION WWW.ARCHEALTHNUTRITION.CO.UK4%
- Open — no brand owns it (2 brands, 6%)
Demand
Riboflavin 400mg search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.4×
Search terms
Top Riboflavin 400mg search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- riboflavin 400mg24K/yr
- vitamin b2 riboflavin 400mg12K/yr
- riboflavin 400mg migraine6K/yr
- vitamin b2 400mg4K/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.
“Unfortunately these had the opposite effect on me”
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.
18 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









