vitamin b2
Launch itA $2.4M/yr market growing +0.4% this quarter with returns at 0.0% — clears our launch bar.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible15.5%search→purchase rate — share of searches ending in a sale
Market size
Incredible$2.4M$2.4M/yr · 1.1M searches
Avg price
Good$14.23avg listing price — sweet spot $15–$100
Price range
Good$6.14–$30.99cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay80%top-5 brand share — brands hold most of the demand
Review moat
Okay3,424.38avg incumbent reviews — the moat a new listing must climb
Growth
Okay+0.4%90-day search growth — must beat 0% to launch
Competition
Bad73%top-5 click share — a locked-up shelf
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, vitamin b2 is a $2.4M/yr Amazon United States market (1.1M searches/yr). The top 5 brands hold 80% of demand. Verdict: Launch it — 56/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
vitamin b2 market data
- Units sold / yr
- 150K–200K
- avg 12,500–15,000/product
- Revenue / yr
- $2.1M–$2.8M
- units × avg price
- Conversion rate
- 15.5%
- Avg BSR
- #154
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 77%
- Out of stock
- 0.0%
- Avg brand age
- 82 months
- Avg seller age
- 152 days
Competition & brand share
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.Brands
11 falling
Sellers
28
Top-5 brand share
80%
Top 20: 100%
Top-5 click share
73%
Top 20: 100%
Open market
14%
- Nutricost41%
- ForestLeaf15%
- Nature's Bounty10%
- Carlyle8%
- NOW Foods6%
- Healthfare6%
- Open — no brand owns it (5 brands, 14%)
Demand & seasonality
Weekly Amazon search volume, last 103 weeks — +0.4% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top vitamin b2 search terms
- vitamin b2213K/yr
- riboflavin169K/yr
- b2 vitamins157K/yr
- riboflavin 400mg123K/yr
- vitamin b2 400 mg58K/yr
- riboflavin vitamin b250K/yr
- b2 400mg28K/yr
- vitamin b2 riboflavin 400mg12K/yr
- b2 riboflavin 400mg21K/yr
- riboflavin 200mg23K/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 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nutricost Vitamin B2 (Riboflavin) 400mg 120 Capsules Gluten Free
Nutricost$14.624.7★16,288 rev
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$16.824.7★10,803 rev
Natures Bounty Vitamin B B-2 Vitamin 100mg as Riboflavin Supplement Aids Energy Metabolism 100 Vegetarian Coated Tablets 100 Day Supply
Nature's Bounty$8.094.7★1,134 rev
NOW Supplements Vitamin B-2 (Riboflavin) 100 mg Energy Production* 100 Veg Capsules
NOW Foods$6.144.7★4,191 rev
Nutricost Vitamin B2 (Riboflavin) 100mg 120 Capsules Gluten Free
Nutricost$9.864.7★5,453 rev
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
Micro Ingredients$18.29220 rev
Carlyle Vitamin B2 200mg | 150 Count | Riboflavin
Carlyle$10.02493 rev
Healthfare Vitamin B2 Riboflavin 400mg | 180 Vegan Capsules | High Potency | Non-GMO | Gluten-Free | Made in USA
Healthfare$10.071,170 rev
kindnature Vitamin B2 Gummies - Riboflavin 400mg Supplement for Kids & Adults - Non-GMO Soy & Gluten-Free Vegan Chewable Gummies (30 Day Supply)
kindnature$21.58869 rev
Carlyle Vitamin B-2 400mg | 180 Count | B2 Riboflavin
Carlyle$6.911,172 rev
Trending
90-day click momentumNOW Supplements Vitamin B-2 (Riboflavin) 100 mg Energy Production* 100 Veg Capsules
NOW Foods$6.144.7★
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
Deal Supplement$19.074.7★
Natures Bounty Vitamin B B-2 Vitamin 100mg as Riboflavin Supplement Aids Energy Metabolism 100 Vegetarian Coated Tablets 100 Day Supply
Nature's Bounty$8.094.7★
Healthfare Vitamin B2 Riboflavin 400mg | 180 Vegan Capsules | High Potency | Non-GMO | Gluten-Free | Made in USA
Healthfare$10.074.7★
kindnature Vitamin B2 Gummies - Riboflavin 400mg Supplement for Kids & Adults - Non-GMO Soy & Gluten-Free Vegan Chewable Gummies (30 Day Supply)
kindnature$21.584.5★
What buyers say about vitamin b2
What buyers praise and complain about, mined from review topics.What buyers love
“It has been of a consistent quality”
“This vitamin is easy to swallow”
“Theyre affordable”
“As advertised and prompt delivery”
“Ease of swallowing and other benefits”
“The 100mg dosage is perfect for my needs”
“Leaves no after taste”
“Gives you great energy”
“efficient”
“does help with sleep”
What buyers complain about
“But does make my urine very yellow”
“This is not a 400 mg pill”
“Moldy taste and smell”
“Tiny”
“I hope no one smelled it”
“Dont work”
“Deceptive marketing”
“For 1 week Ive been taking this and I have a weird cough throat irritation nausea burning sensation in stomach and dizzy wonky”
“Very disappointed with the lack of quality control”
“It was advertise to help you sleep. It did absolutely nothing for me.”
Top return reasons
Common questions
- Is vitamin b2 profitable to sell on Amazon United States?
- The niche generates $2.4M/yr across 13 tracked products. 90-day search growth is +0.4%. Flapen's verdict: Launch it (56/100).
- How competitive is the vitamin b2 niche?
- 11 brands and 28 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 80% of demand.
- What do buyers complain about in vitamin b2?
- Top complaints mined from reviews: Color, Dosage, Taste-Overall. The return rate is 0.0%.
- When does demand for vitamin b2 peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the vitamin b2 niche?
- Listings span $6.14–$30.99; the average listing price is $14.23 (sweet spot $15–$100). The average incumbent carries 3,424 reviews — the moat a new listing must climb.