---
title: "Inositol — £598K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/inositol"
last_updated: "2026-07-31T13:08:34.492Z"
locale: en
meta:
description: "Niche score 61/100 · £598K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 61/100 · £598K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Inositol — £598K/yr Amazon UK Niche (2026) - Flapen"
---
# **inositol**
**Worth a look**
Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 64Growth 19Conversion 72Competition 53Returns 99Price range 48Avg price 53Brand share 82Review moat 68Quality gap 67
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Brand share**
**Great****53%**
top-5 brand share — no brand owns this niche
**Conversion**
**Good****6.6%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****773.39**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Market size**
**Good****£598K**
£598K/yr · 733K searches
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Good****£12.31**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****£4.88–£24.45**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-11.9%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United Kingdom niche tracking, inositol is a £598K/yr Amazon United Kingdom market (733K searches/yr). The top 5 brands hold 53% of demand. Demand peaks in Apr. Verdict: Worth a look — 61/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **inositol market data**
- **Units sold / yr**
- **40K–50K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **£492K–£616K**
- units × avg price
- **Conversion rate**
- **6.6%**
- **Avg BSR**
- **#244**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **87%**
- **Out of stock**
- **2.9%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **161 days**
## **Competition & brand share**
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**23 **▼falling
**Sellers**
**27**
**Top-5 brand share**
**53%**
Top 20: 97%
**Top-5 click share**
**53%**
Top 20: 97%
**Open market**
**40%**
- NEW LEAF PRODUCTS17% - Nutrivo10% - Free Soul10% - PH PROWISE Healthcare9% - VitaBright7% - QSTA7%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -11.9% search growth over the last 90 days.
30K20KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr · busiest ÷ quietest = 2.5×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/inositol/trend)
## **Top inositol search terms**
- **inositol**258K/yr-21.2%5.9% conv. - **myo-inositol**142K/yr-7.9%6.9% conv. - **myo inositol**73K/yr-8.2%6.4% conv. - **myo inositol d chiro inositol**55K/yr-0.6%4.6% conv. - **pcos supplement**55K/yr-12.7%5.1% conv. - **inositol tablets**38K/yr-9.7%6.1% conv. - **pcos**43K/yr-17.2%2.1% conv. - **inositol 4000mg**10K/yr+15.3%4.8% conv. - **myo-inositol 4000mg**7K/yr+13.5%4.3% conv. - **inositol 40 1 ratio**6K/yr+35.4%3.0% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/inositol/search-terms)
## **Top inositol 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%5%£30K10%£60K15%£90K20%£120K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Myo-Inositol PCOS Supplement - Myo Inositol Capsules PCOS Supplement Enriched with Folic Acid Vitamin B12 and Chromium - Hormone Balance for Women 120 Vegan Capsules UK Made New Leaf Vitamin B8**NEW LEAF PRODUCTS**£10.29**4.6★476 rev](https://www.amazon.co.uk/dp/B0CZ7K2D7T) [2**Myo Inositol & D Chiro Inositol - 120 Capsules | Inositol 2000mg Folic Acid Chromium | Alternative to Tablets**Nutrivo**£7.85**4.5★329 rev](https://www.amazon.co.uk/dp/B0CNQGHV3K) [3**Free Soul Myo-Inositol Ultra Supplement | 4 000mg Myo-Inositol 200ug Folate 100ug Chromium Plus 10 000mg Maca for Women | Supplements for Women | Vegan & Gluten-Free | 120 Tablets**Free Soul**£18.85**4.2★689 rev](https://www.amazon.co.uk/dp/B0BBR5WW47) [4**Myo-Inositol Complex 120 Vegan Tablets 7000mg per Serving with Black Maca Root Chromium Folic Acid and Vitamin B12 | Hormonal Balance for Women Women PCOS Supplement | Premium Quality by Prowise**PH PROWISE Healthcare**£8.14**4.2★271 rev](https://www.amazon.co.uk/dp/B0F1DDCVKF) [5**VitaBright Myo-Inositol D-Chiro-Inositol Tablets | 4000mg A Day | 120 Chewable Tablets | Contribute to Hormone Balance for Women | D Chiro & Myoinositol (Vitamin B8) with Chromium B6 & Folic Acid**VitaBright**£14.22**4.6★342 rev](https://www.amazon.co.uk/dp/B0CRJ1G982)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Inositol Myo & D Chiro - 4000mg Folic Acid Vitamin D3 Vitamin B6 Womens Daily Wellness Support Vegan & Gluten-Free 60 Capsules**Keka Naturals**£11.58**16 rev5mo ago](https://www.amazon.co.uk/dp/B0GKHTD49G) [**Myo-Inositol Complex - PCOS Supplement & Hormone Balance for Women Inositol with Zinc Folic Acid Vitamin B6 & Chromium 90 Vegan Capsules Lab-Tested & UK Made - Easy to Swallow Tablets**SuperSelf**£7.76**24 rev10mo ago](https://www.amazon.co.uk/dp/B0FSHGF3DD) [**Myo-Inositol & D-Chiro Inositol (Capsules) PCOS Supplement with Folic Acid 2200 mg Inositol Complex per Serving Cycle & Hormonal Support 180 Vegan Capsules Lab Tested GMP Certified**SUPLINT**£12.36**333 rev1y ago](https://www.amazon.co.uk/dp/B0FGJTSY4M) [**Grounded Inositol 500mg | 120 Micro Tablets | Pure Myo-Inositol for Hormonal Balance & Mental Performance | 2 Month Supply | Vegan-Friendly & Made in the UK**G R O U N D E D COFFEE SCRUB**£5.87**27 rev1y ago](https://www.amazon.co.uk/dp/B0F7MZLNZF) [**Inspiriko 5-in-1 Myo-Inositol Powder 4000mg with Folate Chromium Vitamin B6 & B12-30 Vegan 1-a-Day Myo Inositol Powder Sachets Made in UK**Inspiriko**£21.10**138 rev1y ago](https://www.amazon.co.uk/dp/B0F1G9TKFK)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Inositol Myo & D Chiro - 4000mg Folic Acid Vitamin D3 Vitamin B6 Womens Daily Wellness Support Vegan & Gluten-Free 60 Capsules**Keka Naturals**£11.58**3.9★**▲ 129%**](https://www.amazon.co.uk/dp/B0GKHTD49G) [**Nutravita Myo-Inositol Tablets with Folic Acid Vitamin B6 B12 Maca and Chromium - PCOS Support Supplement - 180 Vegan Tablets - Prenatal Vitamins for Women - Alternative to Inositol Powder**Nutravita**£7.22**4.3★**▲ 87%**](https://www.amazon.co.uk/dp/B0D9KPSB1Z) [**Myo-Inositol & D-Chiro 4100MG Vegan Capsules Metabolic Function Hormonal Balance and Psychological Function 9-in-1 Myo Inositol Folate 5-MTHF Chromium Zinc VIT B6 B12 & D3**QSTA**£19.40**4.3★**▲ 85%**](https://www.amazon.co.uk/dp/B0CKRG3GK9) [**Myo Inositol & D Chiro Inositol 4000mg PCOS Supplement with Chromium Folic Acid & Vitamin B6-60 Vegan Tablets By Alpha01**ALPHA01**£4.88**4.5★**▲ 84%**](https://www.amazon.co.uk/dp/B0DMBGDF31) [**Myo-Inositol Tablets - 4000mg Myo-Inositol Supplements - 120 Vegan Tablets - with 1.5mg Vitamin B6 200g Vitamin B9 as Folic Acid & 100g Chromium - Non-GMO & Gluten Free**WeightWorld**£13.85**4.2★**▲ 33%**](https://www.amazon.co.uk/dp/B0CW374CVT)
**~~View all trending →~~**
## **What buyers say about inositol**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Chewing/Swallowing**9%
*“Happy is chewable”*
**Quality-Overall**8%
*“No complaints”*
**Hormonal Balance**8%
*“This is helping me to get my cycle regularly”*
**Value For Money**7%
*“Good value”*
**Menstrual Issues**6%
*“Helps support regular menstrual cycle”*
**Vitamin**5%
*“Vitamins, easy to swallow good amount of supply”*
**Energy Level**5%
*“best energy”*
**Ease Of Use**4%
*“which makes daily use straightforward”*
**Side Effects**3%
*“No side effects”*
**Weight Loss**3%
*“Noticed my weight has dropped to the lowest it has ever been during my journey with PCOS”*
### **What buyers complain about **
**Size-Overall**18%
*“Very large tablets”*
**Dosage**13%
*“Questionable Dosage”*
**Ease Of Chewing/Swallowing**9%
*“Impossible to swallow”*
**Functionality-Overall**7%
*“No positive results”*
**Side Effects**5%
*“all l got were terrible heartburns l couldn't finish it”*
**Value For Money**4%
*“They are expensive too”*
**Nutritional Content**3%
*“after taking these supplements for around 6 months and have found myself feeling totally knackered all day. as per my previous state., getting more snappy with people, hands shaking, wanting to snack on unhealthy foods and very bloated compared with when I was taking these”*
**Inflammation**2%
*“Acne breakouts”*
**Quality-Overall**2%
*“There were several poor quality pills in the box”*
**Ingredients-Overall**2%
*“The formulation of these is literally horrible”*
## **Common questions**
- **Is inositol profitable to sell on Amazon United Kingdom?**
- The niche generates £598K/yr across 23 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -11.9%. Flapen's verdict: Worth a look (61/100).
- **How competitive is the inositol niche?**
- 23 brands and 27 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 53% of demand.
- **What do buyers complain about in inositol?**
- Top complaints mined from reviews: Size-Overall, Dosage, Ease Of Chewing/Swallowing. The return rate is 0.1%.
- **When does demand for inositol peak?**
- Demand peaks in Apr; the busiest month runs 2.5× the quietest.
- **What does it cost to enter the inositol niche?**
- Listings span £4.88–£24.45; the average listing price is £12.31 (sweet spot $15–$100). The average incumbent carries 773 reviews — the moat a new listing must climb.
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