vitamin b1
Worth a lookShows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Market size
Incredible$4.3M$4.3M/yr · 1.7M searches
Conversion
Incredible13.4%search→purchase rate — share of searches ending in a sale
Avg price
Great$18.49avg listing price — sweet spot $15–$100
Price range
Great$5.44–$56.44cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good72%top-5 brand share — brands hold most of the demand
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Review moat
Okay3,537.43avg incumbent reviews — the moat a new listing must climb
Growth
Bad-1.9%90-day search growth — must beat 0% to launch
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, vitamin b1 is a $4.3M/yr Amazon United States market (1.7M searches/yr). The top 5 brands hold 72% of demand. Verdict: Worth a look — 60/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
vitamin b1 market data
- Units sold / yr
- 250K–300K
- avg 12,500–15,000/product
- Revenue / yr
- $4.6M–$5.5M
- units × avg price
- Conversion rate
- 13.4%
- Avg BSR
- #104
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 90%
- Out of stock
- 0.0%
- Avg brand age
- 76 months
- Avg seller age
- 150 days
Competition & brand share
The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.Brands
18 rising
Sellers
43
Top-5 brand share
72%
Top 20: 100%
Top-5 click share
67%
Top 20: 99%
Open market
24%
- Nutricost26%
- Nature Made17%
- NOW Foods16%
- Dr. Berg Nutritionals9%
- Micro Ingredients5%
- Vitamatic4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -1.9% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top vitamin b1 search terms
- vitamin b1536K/yr
- thiamine b1 supplement157K/yr
- thiamine156K/yr
- b1 vitamin145K/yr
- vitamina b148K/yr
- vit b137K/yr
- b1 thiamine27K/yr
- b 127K/yr
- b1 vitamins30K/yr
- vitamin b 123K/yr
Top vitamin b1 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 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nutricost Vitamin B1 (Thiamine) 500mg 120 Capsules
Nutricost$14.864.7★11,430 rev
Nature Made Vitamin B1 100mg Tablets 100 Tablets
Nature Made$6.434.7★19,487 rev
NOW Foods Supplements Vitamin B-1 100 mg Energy Production* Nervous System Health* 100 Tablets
NOW Foods$5.444.7★9,728 rev
Nutricost Vitamin B1 (Thiamine) 100mg 120 Capsules Gluten Free
Nutricost$9.854.7★6,107 rev
Dr. Berg Natural Vitamin B1 B6 B12 Complex - Allithiamine Vitamin B1 Supplement with 8 Essential Vitamin B Complex for Men & Women Including Thiamin Niacin Folate Magnesium & More - 60 Capsules
Dr. Berg Nutritionals$25.924.7★4,061 rev
Newest
by launch date
Micro Ingredients Vitamin B1 Thiamine 500mg Per Serving 240 Softgels
Micro Ingredients$23.86288 rev
Vykee Nutrition Vitamin B1 (Thiamine) Capsules 500 mg
Vykee Nutrition$22.52348 rev
Bronson Vitamin B1 Extra Strength 500 MG High Potency Non-GMO 60 Capsules
Bronson$9.991,239 rev
BulkSupplements.com Thiamine HCl Capsules - Thiamine Hydrochloride Vitamin B1 Supplements - Gluten Free 1 Capsule per Serving 500 Count (Pack of 1)
BulkSupplements$18.98251 rev
Dr. Berg Natural Vitamin B1 B6 B12 Complex - Allithiamine Vitamin B1 Supplement with 8 Essential Vitamin B Complex for Men & Women Including Thiamin Niacin Folate Magnesium & More - 60 Capsules
Dr. Berg Nutritionals$25.924,061 rev
Trending
90-day click momentum
Benfotiamine 300mg Servings (Third Party Tested 120 Capsules 150mg Per Cap) Non-GMO to Boost Thiamine B1 Levels (More Absorbable Than Thiamine Fat Soluble) by Double Wood
Double Wood Supplements$19.424.7★
Vitamatic Vitamin B1 (As Thiamine Mononitrate) 100mg 250 Vegetarian Tablets Supports Energy Production Nervous System Function & Heart Health*
Vitamatic$9.804.8★
Life Extension Benfotiamine with Thiamine 100 mg benfotiamine Cardiovascular Health Brain Health Non-GMO Gluten-Free 120 Vegetarian Capsules
Life Extension$14.004.6★
NOW Foods Supplements Vitamin B-1 100 mg Energy Production* Nervous System Health* 100 Tablets
NOW Foods$5.444.7★
kindnature Vitamin B1 Gummies 500mg High Potency Thiamine Supplement for Energy Focus & Nervous System Vegan Non-GMO Chewable B1 Vitamins for Adults & Kids Natural Strawberry Flavor 60 Ct
kindnature$21.704.5★
What buyers say about vitamin b1
What buyers praise and complain about, mined from review topics.What buyers love
“A solid brand”
“This are great and natural vitamins”
“Price is affordable”
“Just as advertised”
“Gives me IMMENSE energy boost”
“Helps with sleep”
“not hard to swallow”
“Great tasting gummies”
“Works well”
“Seems to be very helpful still have a quarter of a bottle to go”
What buyers complain about
“Did not like the taste”
“Has a bit of a vitamin smell”
“smells HORRIBLE”
“These capsules are HUGE”
“I cant get the capsule swallowed”
“Waste of money”
“a mammalian food product that will trigger an allergic reaction”
“I cannot take these unfortunately”
“something about it caused me ANAPHYLAXIS”
“feel bad the next day”
Top return reasons
Common questions
- Is vitamin b1 profitable to sell on Amazon United States?
- The niche generates $4.3M/yr across 21 tracked products. 90-day search growth is -1.9%. Flapen's verdict: Worth a look (60/100).
- How competitive is the vitamin b1 niche?
- 18 brands and 43 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 72% of demand.
- What do buyers complain about in vitamin b1?
- Top complaints mined from reviews: Taste-Overall, Vitamin, Smell. The return rate is 0.0%.
- When does demand for vitamin b1 peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the vitamin b1 niche?
- Listings span $5.44–$56.44; the average listing price is $18.49 (sweet spot $15–$100). The average incumbent carries 3,537 reviews — the moat a new listing must climb.