---
title: "Thiamine 100mg — $198K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/thiamine-100mg"
last_updated: "2026-08-11T02:02:02.923Z"
locale: en
meta:
description: "Niche score 41/100 · $198K/yr market · 85K searches/yr · $10.11 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $198K/yr market · 85K searches/yr · $10.11 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Thiamine 100mg — $198K/yr Amazon US Niche (2026) - Flapen"
---
# **thiamine 100mg**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 39Growth 56Conversion 100Competition 4Returns 100Price range 25Avg price 34Brand share 0Review moat 24Quality gap 16
**Conversion**
**Incredible****23.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.0%**
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****$10.11**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****$5.44–$18.25**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Bad****5,546.71**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****96%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
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 ~~](https://flapen.com/research/methodology)
## **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.
40K30KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep · busiest ÷ quietest = 21.1×
[**Open Trend **](https://flapen.com/research/us/health-household/thiamine-100mg/trend)
## **Top thiamine 100mg search terms**
- **thiamine 100mg**22K/yr+32.9%17.7% conv. - **vitamin b1 100mg**16K/yr+18.2%16.6% conv. - **b1 100mg**14K/yr+31.6%20.4% conv. - **nature made b1**10K/yr+65.8%18.3% conv. - **nature made vitamin b1**3K/yr+96.3%15.5% conv. - **thiamine b1 supplement 100mg**5K/yr-2.1%15.4% conv. - **b1 100 mg**3K/yr+25.3%22.8% conv. - **vitamin b-1 100 mg**4K/yr+1.3%21.3% conv. - **vitamin b1 100 mg**3K/yr+46.2%17.4% conv. - **b1 thiamine 100mg**3K/yr+7.9%12.6% conv. [**All search terms **](https://flapen.com/research/us/health-household/thiamine-100mg/search-terms)
## **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.
0%15%$30K30%$59K45%$89K60%$119K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 7 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nature Made Vitamin B1 100mg Tablets 100 Tablets**Nature Made**$6.43**4.7★19,487 rev](https://www.amazon.com/dp/B000GG2K2E) [2**Nutricost Vitamin B1 (Thiamine) 100mg 120 Capsules Gluten Free**Nutricost**$9.85**4.7★6,107 rev](https://www.amazon.com/dp/B07L1C5JHZ) [3**NOW Foods Supplements Vitamin B-1 100 mg Energy Production* Nervous System Health* 100 Tablets**NOW Foods**$5.44**4.7★9,728 rev](https://www.amazon.com/dp/B0009P3DRS) [4**Vitamatic Vitamin B1 (As Thiamine Mononitrate) 100mg 250 Vegetarian Tablets Supports Energy Production Nervous System Function & Heart Health***Vitamatic**$9.80**4.8★738 rev](https://www.amazon.com/dp/B09PDB2GYW) [5**Nature Made Vitamin B1 100 mg Dietary Supplement for Energy Metabolism Support 100 Tabletss 100 Day Supply.**Nature Made**$13.94**4.8★1,297 rev](https://www.amazon.com/dp/B0CHDR9LFB)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Nature Made Vitamin B1 100 mg Dietary Supplement for Energy Metabolism Support 100 Tabletss 100 Day Supply.**Nature Made**$13.94**1,297 rev2y ago](https://www.amazon.com/dp/B0CHDR9LFB) [**Vitamatic Vitamin B1 (As Thiamine Mononitrate) 100mg 250 Vegetarian Tablets Supports Energy Production Nervous System Function & Heart Health***Vitamatic**$9.80**738 rev5y ago](https://www.amazon.com/dp/B09PDB2GYW) [**Nutricost Vitamin B1 (Thiamine) 100mg 120 Capsules Gluten Free**Nutricost**$9.85**6,107 rev7y ago](https://www.amazon.com/dp/B07L1C5JHZ) [**Nature Made Vitamin B-1 100 mg Tablets - 100 ct Pack of 2**Nature Made**$18.25**1,297 rev9y ago](https://www.amazon.com/dp/B00I7TUKQU) [**Natures Truth Vitamin B1 100mg (Thiamine) | 100 Count**Nature's Truth**$7.04**173 rev9y ago](https://www.amazon.com/dp/B06VW1SDDT)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Nature Made Vitamin B1 100 mg Dietary Supplement for Energy Metabolism Support 100 Tabletss 100 Day Supply.**Nature Made**$13.94**4.8★**▲ 172%**](https://www.amazon.com/dp/B0CHDR9LFB) [**Natures Truth Vitamin B1 100mg (Thiamine) | 100 Count**Nature's Truth**$7.04**4.7★**▲ 89%**](https://www.amazon.com/dp/B06VW1SDDT) [**NOW Foods Supplements Vitamin B-1 100 mg Energy Production* Nervous System Health* 100 Tablets**NOW Foods**$5.44**4.7★**▲ 46%**](https://www.amazon.com/dp/B0009P3DRS) [**Vitamatic Vitamin B1 (As Thiamine Mononitrate) 100mg 250 Vegetarian Tablets Supports Energy Production Nervous System Function & Heart Health***Vitamatic**$9.80**4.8★**▲ 14%**](https://www.amazon.com/dp/B09PDB2GYW) [**Nutricost Vitamin B1 (Thiamine) 100mg 120 Capsules Gluten Free**Nutricost**$9.85**4.7★**— 7%**](https://www.amazon.com/dp/B07L1C5JHZ)
**~~View all trending →~~**
## **What buyers say about thiamine 100mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**22%
*“Reasonable price”*
**Advertised Vs Actual Product**15%
*“Works like it should”*
**Vitamin**15%
*“Affordable supplement”*
**Quality-Overall**10%
*“Good quality”*
**Energy Level**8%
*“Improved Energy”*
**Ease Of Chewing/Swallowing**4%
*“Easy to swallow”*
**Sleep Quality**3%
*“This helps me sleep”*
**Joint Pain**2%
*“Its supposed to be good for your nerves”*
**Ease Of Use**2%
*“Easy peasy”*
**Dosage**2%
*“Also i like that its the smaller size pills so its easy to take”*
### **What buyers complain about **
**Taste-Overall**18%
*“Taste is AWFUL”*
**Vitamin**12%
*“These vitamins didn't do anything they said they would help with”*
**Blood Sugar Level**10%
*“diabetics can be deficient in B-1”*
**Smell**8%
*“The pills are a little smelly”*
**Value For Money**7%
*“Kind of expensive”*
**Acid Regulator/Stomach Ache Relief**5%
*“be careful to take this on a full stomach or it will make you nauseous”*
**Bitter**4%
*“So bitter”*
**Size-Overall**2%
*“Too large”*
**Weight Loss**2%
*“have felt very fatigued for a long time”*
**Ingredients-Overall**2%
*“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.
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