thiamine 100mg
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible23.0%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Growth
Good+29.5%90-day search growth — must beat 0% to launch
Market size
Okay$198K$198K/yr · 85K searches
Avg price
Okay$10.11avg listing price — sweet spot $15–$100
Price range
Okay$5.44–$18.25cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Bad5,546.71avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Competition
Bad96%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, thiamine 100mg is a $198K/yr Amazon United States market (85K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Sep. Verdict: Skip it — 41/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
thiamine 100mg market data
- Units sold / yr
- 20K–25K
- avg 4,000–5,000/product
- Revenue / yr
- $202K–$253K
- units × avg price
- Conversion rate
- 23.0%
- Avg BSR
- #72
- Page quality
- 0%
- Prime
- 71%
- Sponsored
- 71%
- Out of stock
- 0.0%
- Avg brand age
- 102 months
- Avg seller age
- 156 days
Competition & brand share
The top 5 products capture 96% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 falling
Sellers
38
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
96%
Top 20: 100%
Open market
0%
- Nature Made48%
- Nutricost24%
- NOW Foods13%
- Vitamatic13%
- Nature's Truth2%
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — +29.5% search growth over the last 90 days.Peak months: Sep · busiest ÷ quietest = 21.1×
Top thiamine 100mg search terms
- thiamine 100mg22K/yr
- vitamin b1 100mg16K/yr
- b1 100mg14K/yr
- nature made b110K/yr
- nature made vitamin b13K/yr
- thiamine b1 supplement 100mg5K/yr
- b1 100 mg3K/yr
- vitamin b-1 100 mg4K/yr
- vitamin b1 100 mg3K/yr
- b1 thiamine 100mg3K/yr
Top thiamine 100mg 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 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nature Made Vitamin B1 100mg Tablets 100 Tablets
Nature Made$6.434.7★19,487 rev
Nutricost Vitamin B1 (Thiamine) 100mg 120 Capsules Gluten Free
Nutricost$9.854.7★6,107 rev
NOW Foods Supplements Vitamin B-1 100 mg Energy Production* Nervous System Health* 100 Tablets
NOW Foods$5.444.7★9,728 rev
Vitamatic Vitamin B1 (As Thiamine Mononitrate) 100mg 250 Vegetarian Tablets Supports Energy Production Nervous System Function & Heart Health*
Vitamatic$9.804.8★738 rev
Nature Made Vitamin B1 100 mg Dietary Supplement for Energy Metabolism Support 100 Tabletss 100 Day Supply.
Nature Made$13.944.8★1,297 rev
Newest
by launch dateNature Made Vitamin B1 100 mg Dietary Supplement for Energy Metabolism Support 100 Tabletss 100 Day Supply.
Nature Made$13.941,297 rev
Vitamatic Vitamin B1 (As Thiamine Mononitrate) 100mg 250 Vegetarian Tablets Supports Energy Production Nervous System Function & Heart Health*
Vitamatic$9.80738 rev
Nutricost Vitamin B1 (Thiamine) 100mg 120 Capsules Gluten Free
Nutricost$9.856,107 rev
Nature Made Vitamin B-1 100 mg Tablets - 100 ct Pack of 2
Nature Made$18.251,297 rev
Natures Truth Vitamin B1 100mg (Thiamine) | 100 Count
Nature's Truth$7.04173 rev
Trending
90-day click momentumNature Made Vitamin B1 100 mg Dietary Supplement for Energy Metabolism Support 100 Tabletss 100 Day Supply.
Nature Made$13.944.8★
Natures Truth Vitamin B1 100mg (Thiamine) | 100 Count
Nature's Truth$7.044.7★
NOW Foods Supplements Vitamin B-1 100 mg Energy Production* Nervous System Health* 100 Tablets
NOW Foods$5.444.7★
Vitamatic Vitamin B1 (As Thiamine Mononitrate) 100mg 250 Vegetarian Tablets Supports Energy Production Nervous System Function & Heart Health*
Vitamatic$9.804.8★
Nutricost Vitamin B1 (Thiamine) 100mg 120 Capsules Gluten Free
Nutricost$9.854.7★
What buyers say about thiamine 100mg
What buyers praise and complain about, mined from review topics.What buyers love
“Reasonable price”
“Works like it should”
“Affordable supplement”
“Good quality”
“Improved Energy”
“Easy to swallow”
“This helps me sleep”
“Its supposed to be good for your nerves”
“Easy peasy”
“Also i like that its the smaller size pills so its easy to take”
What buyers complain about
“Taste is AWFUL”
“These vitamins didn't do anything they said they would help with”
“diabetics can be deficient in B-1”
“The pills are a little smelly”
“Kind of expensive”
“be careful to take this on a full stomach or it will make you nauseous”
“So bitter”
“Too large”
“have felt very fatigued for a long time”
“A cheap source of B-1”
Common questions
- Is thiamine 100mg profitable to sell on Amazon United States?
- The niche generates $198K/yr across 7 tracked products. 90-day search growth is +29.5%. Flapen's verdict: Skip it (41/100).
- How competitive is the thiamine 100mg niche?
- 5 brands and 38 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in thiamine 100mg?
- Top complaints mined from reviews: Taste-Overall, Vitamin, Blood Sugar Level. The return rate is 0.0%.
- When does demand for thiamine 100mg peak?
- Demand peaks in Sep; the busiest month runs 21.1× the quietest.
- What does it cost to enter the thiamine 100mg niche?
- Listings span $5.44–$18.25; the average listing price is $10.11 (sweet spot $15–$100). The average incumbent carries 5,547 reviews — the moat a new listing must climb.