---
title: "Myo-inositol — £329K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/myo-inositol"
last_updated: "2026-07-31T17:38:40.420Z"
locale: en
meta:
description: "Niche score 55/100 · £329K/yr market · 361K searches/yr · £13.35 avg price. Soft demand (-7.8% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · £329K/yr market · 361K searches/yr · £13.35 avg price. Soft demand (-7.8% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Myo-inositol — £329K/yr Amazon UK Niche (2026) - Flapen"
---
# **myo-inositol**
**Worth a look**
Shows low returns (0.1%), but soft demand (-7.8% this quarter) keeps it on the watch list.
Market size 52Growth 21Conversion 74Competition 33Returns 99Price range 48Avg price 61Brand share 66Review moat 67Quality gap 62
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Good****6.8%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****812**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****65%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Good****£13.35**
avg listing price — sweet spot $15–$100
**Market size**
**Good****£329K**
£329K/yr · 361K searches
**Price range**
**Okay****£4.88–£24.45**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****65%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-7.8%**
90-day search growth — must beat 0% to launch
**Signals**[** 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, myo-inositol is a £329K/yr Amazon United Kingdom market (361K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in Aug. Verdict: Worth a look — 55/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **myo-inositol market data**
- **Units sold / yr**
- **20K–25K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **£267K–£334K**
- units × avg price
- **Conversion rate**
- **6.8%**
- **Avg BSR**
- **#187**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **94%**
- **Out of stock**
- **1.6%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **158 days**
## **Competition & brand share**
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▼falling
**Sellers**
**17**
**Top-5 brand share**
**65%**
Top 20: 100%
**Top-5 click share**
**65%**
Top 20: 100%
**Open market**
**29%**
- NEW LEAF PRODUCTS24% - Free Soul14% - PH PROWISE Healthcare11% - Nutrivo10% - MyOva6% - WeightWorld6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -7.8% search growth over the last 90 days.
23K18KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/myo-inositol/trend)
## **Top myo-inositol search terms**
- **myo-inositol**142K/yr-7.9%6.9% conv. - **myo inositol**73K/yr-8.2%6.1% conv. - **pcos supplement**55K/yr-12.7%5.1% conv. - **pcos**43K/yr-17.2%2.3% conv. - **inositol 4000mg**10K/yr+15.3%3.9% conv. - **myoinositol**4K/yr+130.9%7.5% conv. - **myova**6K/yr+4.3%4.5% conv. - **pcos supplements**6K/yr-5.4%2.0% conv. - **pcos weight loss**4K/yr+42.1%1.5% conv. - **my ova**5K/yr-10.6%4.9% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/myo-inositol/search-terms)
## **Top myo-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%10%£33K20%£66K30%£99K40%£132K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 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**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) [3**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) [4**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) [5**Myoplus - Myo-inositol PCOS Supplement - 4000mg Myo-Inositol 200ug Folate & 100ug Chromium Daily Intake - 120 Chewable Vegan Inositol Tablets - UK Made by MyOva**MyOva**£24.45**4.2★2,135 rev](https://www.amazon.co.uk/dp/B01M0OZQHI)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Goodvita Myo + D-Chiro Inositol Gummies x60 | PCOS Supplement for Women 2000mg | Added Folate Chronium + B12 | Watermelon Flavour | 1 Month Supply | Hormone Balance Weight Loss + Fertility | Vegan**Goodvita**£12.42**50 rev9mo ago](https://www.amazon.co.uk/dp/B0FRTFT54N) [**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**271 rev1y ago](https://www.amazon.co.uk/dp/B0F1DDCVKF) [**Inositol Capsules for Women | Myo & D-Chiro Inositol Complex with Folic Acid & Vitamin D3 | Hormone Balance Cycle Support & PCOS | 120 Capsules (2 Month Supply)**HERA VITALITY**£16.02**193 rev1y ago](https://www.amazon.co.uk/dp/B0DY5LCCDD) [**Natures Best Myo Inositol Powder 200g Powder 50 Servings**NATURE'S BEST**£17.54**65 rev1y ago](https://www.amazon.co.uk/dp/B0DMFS55M8) [**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**216 rev2y ago](https://www.amazon.co.uk/dp/B0D9KPSB1Z)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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★**▲ 93%**](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★**▲ 65%**](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★**▲ 62%**](https://www.amazon.co.uk/dp/B0DMBGDF31) [**Inositol Capsules for Women | Myo & D-Chiro Inositol Complex with Folic Acid & Vitamin D3 | Hormone Balance Cycle Support & PCOS | 120 Capsules (2 Month Supply)**HERA VITALITY**£16.02**4.5★**▲ 38%**](https://www.amazon.co.uk/dp/B0DY5LCCDD) [**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★**▲ 32%**](https://www.amazon.co.uk/dp/B0CW374CVT)
**~~View all trending →~~**
## **What buyers say about myo-inositol**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**9%
*“No complaints”*
**Hormonal Balance**8%
*“Medication that supports Hormonal health”*
**Ease Of Chewing/Swallowing**8%
*“Happy is chewable”*
**Value For Money**7%
*“Great product for price”*
**Energy Level**5%
*“best energy”*
**Menstrual Issues**5%
*“with pretty consistent periods”*
**Vitamin**5%
*“Excellent supplement”*
**Ease Of Use**4%
*“which makes daily use straightforward”*
**Side Effects**4%
*“No side effects”*
**Sleep Quality**4%
*“the quality of sleep has improved”*
### **What buyers complain about **
**Size-Overall**19%
*“they are huge”*
**Dosage**12%
*“I don't take the recommend dosage”*
**Ease Of Chewing/Swallowing**11%
*“Impossible to swallow”*
**Functionality-Overall**5%
*“No positive results”*
**Value For Money**5%
*“have seen more expensive”*
**Side Effects**4%
*“as I didnt feel safe continuing after the first dose”*
**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”*
**Taste-Overall**2%
*“doesnt really taste like anything so can easily take it with water”*
**Allergies**2%
*“Gave me the worst cystic acne breakout on my chin”*
## **Common questions**
- **Is myo-inositol profitable to sell on Amazon United Kingdom?**
- The niche generates £329K/yr across 16 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -7.8%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the myo-inositol niche?**
- 16 brands and 17 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 65% of demand.
- **What do buyers complain about in myo-inositol?**
- Top complaints mined from reviews: Size-Overall, Dosage, Ease Of Chewing/Swallowing. The return rate is 0.1%.
- **When does demand for myo-inositol peak?**
- Demand peaks in Aug; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the myo-inositol niche?**
- Listings span £4.88–£24.45; the average listing price is £13.35 (sweet spot $15–$100). The average incumbent carries 812 reviews — the moat a new listing must climb.
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