---
title: "Vitamin B1 — £255K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/vitamin-b1"
last_updated: "2026-07-31T17:15:13.430Z"
locale: en
meta:
description: "Niche score 47/100 · £255K/yr market · 191K searches/yr · £8.48 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · £255K/yr market · 191K searches/yr · £8.48 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Vitamin B1 — £255K/yr Amazon UK Niche (2026) - Flapen"
---
# **vitamin b1**
**Skip it**
Prices mostly outside the sweet spot ($3.78–$16.77) — this niche doesn't clear our bar today.
Market size 47Growth 22Conversion 97Competition 20Returns 100Price range 14Avg price 24Brand share 44Review moat 64Quality gap 40
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****15.8%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****937.08**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****£255K**
£255K/yr · 191K searches
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Bad****£8.48**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-6.5%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****76%**
top-5 click share — a locked-up shelf
**Price range**
**Bad****£3.78–£16.77**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, vitamin b1 is a £255K/yr Amazon United Kingdom market (191K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 47/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin b1 market data**
- **Units sold / yr**
- **25K–30K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **£212K–£254K**
- units × avg price
- **Conversion rate**
- **15.8%**
- **Avg BSR**
- **#9**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **85%**
- **Out of stock**
- **4.1%**
- **Avg brand age**
- **65 months**
- **Avg seller age**
- **178 days**
## **Competition & brand share**
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**12 **▼falling
**Sellers**
**26**
**Top-5 brand share**
**78%**
Top 20: 100%
**Top-5 click share**
**76%**
Top 20: 100%
**Open market**
**17%**
- Natures Aid37% - Lindens14% - NEW LEAF PRODUCTS12% - Solgar9% - MOBU6% - Vita Thrive5% - Open — no brand owns it (6 brands, 17%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -6.5% search growth over the last 90 days.
5K3KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/vitamin-b1/trend)
## **Top vitamin b1 search terms**
- **vitamin b1**71K/yr-5.5%12.9% conv. - **thiamine**37K/yr-14.0%11.7% conv. - **thiamine vitamin b1 high strength**20K/yr-0.8%16.5% conv. - **b1 vitamin**10K/yr+2.8%11.1% conv. - **vit b1**7K/yr+11.8%13.0% conv. - **vitamin b1 thiamine**6K/yr+3.4%12.7% conv. - **b1 thiamine**4K/yr-10.6%11.0% conv. - **thiamine 100mg tablets**6K/yr-24.7%20.7% conv. - **ttfd thiamine**3K/yr-57.8%0.5% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/vitamin-b1/search-terms)
## **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.
0%10%£25K20%£51K30%£76K40%£102K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Natures Aid Vitamin B1 100mg Thiamine Tablets High Strength Food Supplement Supports Energy Metabolism Nervous System Heart & Mind Vegan Gluten-Free Non-GMO 90 Tablets**Natures Aid**£5.25**4.6★2,296 rev](https://www.amazon.co.uk/dp/B009M3NQGQ) [2**Lindens Vitamin B1 Thiamine Tablets - 100 Pack - for Heart Immune and Psychological Function & Energy Release - UK Manufacturer Letterbox Friendly**Lindens**£6.07**4.6★1,438 rev](https://www.amazon.co.uk/dp/B00GL2JGTW) [3**Vitamin B1 Thiamine Supplement 100mg (4 Months Value Supply) Thiamine Vitamin B1 High Strength Heart Health Healthy Nervous System Immune Health Energy Release Vegan Gluten-Free UK 120 Tablets**NEW LEAF PRODUCTS**£7.46**4.4★843 rev](https://www.amazon.co.uk/dp/B08VLMKG24) [4**Solgar Vitamin B1 (Thiamin) 500 mg Tablets - Pack of 100 - Supports Energy Metabolism and Nervous System - Vegan**Solgar**£16.77**4.5★3,551 rev](https://www.amazon.co.uk/dp/B000Z90BR8) [5**Vitamin B1 Thiamine 100mg 120 Tablets | Healthy Heart Immune & Psychological Function | Thiamine Hydrochloride High Strength | Vegan | MOBU UK**MOBU**£6.56**4.5★562 rev](https://www.amazon.co.uk/dp/B098MVP9KG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vinco Benfotiamine 300mg - Vitamin B1 Thiamine High Strength for Heart & Kidney Support 120 Vegan Capsules Enhanced Cognitive Function Energy & Antioxidants Gluten & Allergen-Free - Made in UK**Vinco Supplements**£13.53**313 rev2y ago](https://www.amazon.co.uk/dp/B0CT5J6BMC) [**ThiaMax-100 Vitamin B1 Thiamine 100mg Tablets Pack of 100 - for Heart Immune and Psychological Function & Energy Release**PuroSure**£4.87**43 rev3y ago](https://www.amazon.co.uk/dp/B0BGC9M5JS) [**VitaThrive Vitamin B1 100mg Tablets High Strength Thiamine Supplement for Energy Metabolism Nervous System Function & Daily Wellness Support Vegan Tablets 90 Tablets**Vita Thrive**£3.78**131 rev4y ago](https://www.amazon.co.uk/dp/B09XXW5TMJ) [**Vitamin B1 Thiamine 100mg 120 Tablets | Healthy Heart Immune & Psychological Function | Thiamine Hydrochloride High Strength | Vegan | MOBU UK**MOBU**£6.56**562 rev5y ago](https://www.amazon.co.uk/dp/B098MVP9KG) [**Vitamin B1 Thiamine 100mg Tablets | 120 Count (4 Months Supply) | High Strength Vitamin B1 | Suitable for Vegetarians and Vegans | by Horbaach**Horbäach**£6.46**897 rev5y ago](https://www.amazon.co.uk/dp/B097N2LT5Z)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ThiaMax-100 Vitamin B1 Thiamine 100mg Tablets Pack of 100 - for Heart Immune and Psychological Function & Energy Release**PuroSure**£4.87**4.3★**▲ 102%**](https://www.amazon.co.uk/dp/B0BGC9M5JS) [**VitaThrive Vitamin B1 100mg Tablets High Strength Thiamine Supplement for Energy Metabolism Nervous System Function & Daily Wellness Support Vegan Tablets 90 Tablets**Vita Thrive**£3.78**4.4★**▲ 72%**](https://www.amazon.co.uk/dp/B09XXW5TMJ) [**Vitamin B1 Thiamine 100mg Tablets | 120 Count (4 Months Supply) | High Strength Vitamin B1 | Suitable for Vegetarians and Vegans | by Horbaach**Horbäach**£6.46**4.5★**▲ 46%**](https://www.amazon.co.uk/dp/B097N2LT5Z) [**Solgar Vitamin B1 (Thiamin) 100 mg Vegetable Capsules - Pack of 100 - Supports Energy Levels and Nervous System - for a Healthy Heart and Balanced Mind - Vegan and Gluten Free**Solgar**£9.42**4.5★**▲ 26%**](https://www.amazon.co.uk/dp/B00020IAIC) [**Natures Aid Vitamin B1 100mg Thiamine Tablets High Strength Food Supplement Supports Energy Metabolism Nervous System Heart & Mind Vegan Gluten-Free Non-GMO 90 Tablets**Natures Aid**£5.25**4.6★**▲ 10%**](https://www.amazon.co.uk/dp/B009M3NQGQ)
**~~View all trending →~~**
## **What buyers say about vitamin b1**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**22%
*“Worth every penny”*
**Advertised Vs Actual Product**14%
*“as advertised”*
**Vitamin**14%
*“Excellent vitamin product”*
**Quality-Overall**13%
*“Very pleased with item”*
**Ease Of Use**6%
*“Easy to use”*
**Efficiency**4%
*“This worked for me”*
**Size-Overall**3%
*“they are a good size”*
**Nutritional Content**3%
*“Good supplement”*
**Ease Of Chewing/Swallowing**3%
*“Easy to swallow”*
**Functionality-Overall**3%
*“It will work”*
### **What buyers complain about **
**Smell**21%
*“you'll be spending way more on your hot water, soap and deodorant, because your body gets that stink too”*
**Nutritional Content**13%
*“poor man's supplement”*
**Advertised Vs Actual Product**10%
*“Misleading”*
**Ingredients-Overall**7%
*“Not clearly stating ingredients type”*
**Size-Overall**7%
*“They're huge”*
**Stress/Anxiety**3%
*“I've found from taking these pretty much straight away I could feel the effects I felt karma didn't feel so much on the edge with anxiety plus I like the Fact there's not a lot of ingredients I would give it a 👍🏻 up”*
**Taste-Overall**3%
*“bit of an unpleasant taste”*
**Side Effects**3%
*“Actually it has given me an upset stomach”*
**Acid Regulator/Stomach Ache Relief**3%
*“Actually it has given me an upset stomach”*
**Pain Relief-Overall**2%
*“the pain was not easing”*
## **Common questions**
- **Is vitamin b1 profitable to sell on Amazon United Kingdom?**
- The niche generates £255K/yr across 13 tracked products. 90-day search growth is -6.5%. Flapen's verdict: Skip it (47/100).
- **How competitive is the vitamin b1 niche?**
- 12 brands and 26 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 78% of demand.
- **What do buyers complain about in vitamin b1?**
- Top complaints mined from reviews: Smell, Nutritional Content, Advertised Vs Actual Product. The return rate is 0.1%.
- **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 £3.78–£16.77; the average listing price is £8.48 (sweet spot $15–$100). The average incumbent carries 937 reviews — the moat a new listing must climb.
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