vitamin b2
Skip itSoft demand (-7.3% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Incredible12.8%search→purchase rate — share of searches ending in a sale
Review moat
Okay1,823.35avg incumbent reviews — the moat a new listing must climb
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Avg price
Okay£11.35avg listing price — sweet spot $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Price range
Okay£4.63–£22.31cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay£101K£101K/yr · 69K searches
Competition
Bad71%top-5 click share — a locked-up shelf
Growth
Bad-7.3%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, vitamin b2 is a £101K/yr Amazon United Kingdom market (69K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 46/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
vitamin b2 market data
- Units sold / yr
- 8K–10K
- avg 250–500/product
- Revenue / yr
- £91K–£114K
- units × avg price
- Conversion rate
- 12.8%
- Avg BSR
- #8
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 82%
- Out of stock
- 8.1%
- Avg brand age
- 68 months
- Avg seller age
- 174 days
Competition & brand share
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.Brands
14 rising
Sellers
23
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
71%
Top 20: 100%
Open market
16%
- Health4All29%
- Solgar23%
- Nutricost10%
- MetaSuperfoods9%
- Horbäach7%
- FuelFinity7%
- Open — no brand owns it (8 brands, 16%)
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — -7.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top vitamin b2 search terms
- vitamin b227K/yr
- b2 vitamin14K/yr
- riboflavin16K/yr
- vitamin b2 riboflavin3K/yr
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.
All 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Solgar Vitamin B2 (Riboflavin) 100 mg Vegetable Capsules - Pack of 100 - Supports Energy Production - Can Help Reduce Tiredness and Fatigue - Vegan and Gluten-Free
Solgar£7.954.6★1,887 rev
Vitamin B2 Riboflavin 400mg Migraine Support 120 Capsules 4 Months Supply
Health4All£13.374.6★801 rev
Nutricost Vitamin B2 (Riboflavin) 400mg 120 Capsules - Gluten Free Non-GMO Energy Boost Premium Quality
Nutricost£13.194.6★14,807 rev
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
MetaSuperfoods£11.004.3★75 rev
Vitamin B2 Riboflavin 200mg | 120 Vegan Tablets (4 Months Supply) | High Strength Supplement | No Artificial Preservatives | by Horbaach
Horbäach£8.474.6★50 rev
Newest
by launch date
Vitamin B2 Riboflavin Supplement 60 Vegan Tablets for Men & Women High Strength Made in the UK
ARC) HEALTH+NUTRITION WWW.ARCHEALTHNUTRITION.CO.UK£4.634 rev
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
MetaSuperfoods£11.0075 rev
FuelFinity Vitamin B2 Riboflavin 100mg - for Energy & Migraine Relief Support - 90 Days Supply - Made in UK Vegan No additives
FuelFinity£8.06397 rev
Vitamin B2 Riboflavin 200mg | 120 Vegan Tablets (4 Months Supply) | High Strength Supplement | No Artificial Preservatives | by Horbaach
Horbäach£8.4750 rev
Vitamin B2 Riboflavin 400mg Migraine Support 120 Capsules 4 Months Supply
Health4All£13.37801 rev
Trending
90-day click momentumFuelFinity Vitamin B2 Riboflavin 100mg - for Energy & Migraine Relief Support - 90 Days Supply - Made in UK Vegan No additives
FuelFinity£8.064.5★
Vitamin B2 Riboflavin Supplement 60 Vegan Tablets for Men & Women High Strength Made in the UK
ARC) HEALTH+NUTRITION WWW.ARCHEALTHNUTRITION.CO.UK£4.633.4★
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
MetaSuperfoods£11.004.3★
Metabolics Riboflavin 5-Phosphate 47.5mg | Active Vitamin B2 for Energy Vision & Nervous System | UK Made GMP Certified | Vegan | 60 Capsules
Metabolics£18.234.9★
Nutravita Vitamin B Complex High Potency - 1 Full Year Supply - 8 Vitamins B1-B2-B3-B5-B6-B12 Biotin Folic Acid & VIT D3 in 1 High Strength Micro Tablet - Reduction of Tiredness - Made in The UK
Nutravita£11.384.6★
What buyers say about vitamin b2
What buyers praise and complain about, mined from review topics.What buyers love
“Good Value”
“Honestly best vitamins I have invested in”
“Easy to swallow”
“Its good produ”
“I am using it now it has given me more energy not feeling more tired any more”
“As described”
“A natural product”
“Good tablet size for anyone to take”
“Very effective”
“Hoping Ill feel the benefits of taking it soon”
What buyers complain about
“I needed to take a lower dose first and then work up to these because the side effects where too extreme at first, making me feel dizzy and light headed”
“They smell so bad”
“Warning your pee will be luminous yellow”
“Expensive 6 week mistake”
“Very small box”
“Its near impossible in the UK to find this dose of B12 in one capsule. most places only do 100mg capsules at most”
“Doesn't work”
“Poor”
“Your body is filtering out unused vitamins”
“Caused me anxiety for some reason”
Top return reasons
Common questions
- Is vitamin b2 profitable to sell on Amazon United Kingdom?
- The niche generates £101K/yr across 17 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -7.3%. Flapen's verdict: Skip it (46/100).
- How competitive is the vitamin b2 niche?
- 14 brands and 23 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 78% of demand.
- What do buyers complain about in vitamin b2?
- Top complaints mined from reviews: Side Effects, Smell, Color. The return rate is 0.1%.
- When does demand for vitamin b2 peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the vitamin b2 niche?
- Listings span £4.63–£22.31; the average listing price is £11.35 (sweet spot $15–$100). The average incumbent carries 1,823 reviews — the moat a new listing must climb.