---
title: "Spartan - Grey Hair Reverse Bar — £0/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/beauty/spartan-grey-hair-reverse-bar"
last_updated: "2026-08-06T22:55:09.185Z"
locale: en
meta:
description: "Niche score 26/100 · £0/yr market · 2K searches/yr · £8.84 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 26/100 · £0/yr market · 2K searches/yr · £8.84 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Spartan - Grey Hair Reverse Bar — £0/yr Amazon UK Niche (2026) - Flapen"
---
# **spartan - grey hair reverse bar**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 28Conversion 0Competition 0Returns 100Price range 0Avg price 25Brand share 0Review moat 50Quality gap 80
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****1,547.75**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+2.8%**
90-day search growth — must beat 0% to launch
**Avg price**
**Okay****£8.84**
avg listing price — sweet spot $15–$100
**Market size**
**Bad****£0**
£0/yr · 2K searches
**Conversion**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Price range**
**Bad****£6.05–£13.67**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, spartan - grey hair reverse bar is a £0/yr Amazon United Kingdom market (2K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 26/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **spartan - grey hair reverse bar market data**
- **Units sold / yr**
- **100–250**
- avg 0–100/product
- **Revenue / yr**
- **£884–£2K**
- units × avg price
- **Conversion rate**
- **0.0%**
- **Avg BSR**
- **#226**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **75%**
- **Out of stock**
- **13.6%**
- **Avg brand age**
- **42 months**
- **Avg seller age**
- **198 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**28**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- KinKind29% - GNAUMORE27% - Just For Men26% - ThriveCo18%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +2.8% search growth over the last 90 days.
12575Holiday '24Spike '25Prime Day '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/uk/beauty/spartan-grey-hair-reverse-bar/trend)
## **Top spartan - grey hair reverse bar search terms**
- **reverse grey hair**740/yr+19.1%0.5% conv. - **shampoo bar for grey hair**698/yr+37.3%1.8% conv. - **grey hair soap bar men**446/yr-18.2%1.6% conv. - **grey hair reverse bar**187/yr-31.6%0.0% conv. - **gray hair reverse bar**107/yr-71.4%0.0% conv. - **spartan grey hair reverse bar**101/yr-77.8%0.0% conv. - **grey reverse shampoo bar**72/yr-81.8%0.0% conv. [**All search terms **](https://flapen.com/research/uk/beauty/spartan-grey-hair-reverse-bar/search-terms)
## **Top spartan - grey hair reverse bar 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%£020%£030%£040%£01101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 4 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**KinKind Purple Shampoo Bar - My PLATINUM Touch! Solid Shampoo Bar for Blonde Silver & White Hair | Natural Shampoo Bar Travel Shampoo Bars for Hair UK | Up to 50 Washes - Vegan**KinKind**£6.49**4.4★633 rev](https://www.amazon.co.uk/dp/B08FLHJR7X) [2**Natural Blackening More Confident Looks Hair Darkening Serum Grey Hair Reverse Essence Nutrient Natural Darkening Serum For Men Women scalpy hair growth serum scalpy hair serum scalp serum**GNAUMORE**£9.16**4.6★4 rev](https://www.amazon.co.uk/dp/B0FK21Q7TM) [3**Just For Men Control GX 2-in-1 Shampoo and Conditioner Gradually and Permanently Reduces Grey Hair with Each Wash New Improved Formula - All Shades 118 ml**Just For Men**£6.05**4.2★2,373 rev](https://www.amazon.co.uk/dp/B09VC7QZXB) [4**ThriveCo Anti-Grey Hair Prime Serum Reverse Greying Hair & Beard Advanced Clinically Proven Treatment With Arcedin + Arcolys +Biotin Light-Weight Non-Sticky Men and Women 50 ml Transparent**ThriveCo**£13.67**3.7★3,181 rev](https://www.amazon.co.uk/dp/B09TKBXQG4)
### **Newest**
by launch date
[**ThriveCo Anti-Grey Hair Prime Serum Reverse Greying Hair & Beard Advanced Clinically Proven Treatment With Arcedin + Arcolys +Biotin Light-Weight Non-Sticky Men and Women 50 ml Transparent**ThriveCo**£13.67**3,181 rev4mo ago](https://www.amazon.co.uk/dp/B09TKBXQG4) [**Natural Blackening More Confident Looks Hair Darkening Serum Grey Hair Reverse Essence Nutrient Natural Darkening Serum For Men Women scalpy hair growth serum scalpy hair serum scalp serum**GNAUMORE**£9.16**4 rev12mo ago](https://www.amazon.co.uk/dp/B0FK21Q7TM) [**KinKind Purple Shampoo Bar - My PLATINUM Touch! Solid Shampoo Bar for Blonde Silver & White Hair | Natural Shampoo Bar Travel Shampoo Bars for Hair UK | Up to 50 Washes - Vegan**KinKind**£6.49**633 rev3y ago](https://www.amazon.co.uk/dp/B08FLHJR7X) [**Just For Men Control GX 2-in-1 Shampoo and Conditioner Gradually and Permanently Reduces Grey Hair with Each Wash New Improved Formula - All Shades 118 ml**Just For Men**£6.05**2,373 rev4y ago](https://www.amazon.co.uk/dp/B09VC7QZXB)
### **Trending**
90-day click momentum
[**ThriveCo Anti-Grey Hair Prime Serum Reverse Greying Hair & Beard Advanced Clinically Proven Treatment With Arcedin + Arcolys +Biotin Light-Weight Non-Sticky Men and Women 50 ml Transparent**ThriveCo**£13.67**3.7★**▲ 184%**](https://www.amazon.co.uk/dp/B09TKBXQG4) [**Natural Blackening More Confident Looks Hair Darkening Serum Grey Hair Reverse Essence Nutrient Natural Darkening Serum For Men Women scalpy hair growth serum scalpy hair serum scalp serum**GNAUMORE**£9.16**4.6★**▲ 130%**](https://www.amazon.co.uk/dp/B0FK21Q7TM) [**KinKind Purple Shampoo Bar - My PLATINUM Touch! Solid Shampoo Bar for Blonde Silver & White Hair | Natural Shampoo Bar Travel Shampoo Bars for Hair UK | Up to 50 Washes - Vegan**KinKind**£6.49**4.4★**▼ 28%**](https://www.amazon.co.uk/dp/B08FLHJR7X) [**Just For Men Control GX 2-in-1 Shampoo and Conditioner Gradually and Permanently Reduces Grey Hair with Each Wash New Improved Formula - All Shades 118 ml**Just For Men**£6.05**4.2★**▼ 38%**](https://www.amazon.co.uk/dp/B09VC7QZXB)
## **What buyers say about spartan - grey hair reverse bar**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Efficiency**20%
*“Does the job”*
**Advertised Vs Actual Product**11%
*“Works as it should”*
**Quality-Overall**11%
*“Brilliant product with quick & impressive results”*
**Color**10%
*“use this a couple of times a week - keeps it the right colour”*
**Suitability Colored Hair**10%
*“He didnt want to dye his hair and have a sudden & dramatic colour change, and this shampoo has created a naturally more blended colour”*
**Value For Money**9%
*“Value for money”*
**Ease Of Use**9%
*“Easy to use”*
**Hair Removal**3%
*“Great solid shampoo leaves my hair clean”*
**Hair Growth**3%
*“Results on my hair are great”*
**Ease Of Cleaning**3%
*“Easier to scrub off sooner rather than later”*
### **What buyers complain about **
**Functionality-Overall**18%
*“Doesn't work”*
**Stain Resistance**14%
*“It will stain your towel blue”*
**Color**13%
*“its pretty much white”*
**Hair Related**8%
*“got my hair cut all my scalp is patches of dark”*
**Ease Of Use**5%
*“it was truly horrific to use”*
**Advertised Vs Actual Product**5%
*“This product is misleading regarding returns”*
**Color Fading/Discoloration**4%
*“Certainly dying my fingers”*
**Quality-Overall**4%
*“not as good as product as it used to be”*
**Strength**4%
*“New, weaker formula”*
**Suitability Colored Hair**3%
*“got my hair cut all my scalp is patches of dark”*
### **Top return reasons **
**Leak-Proof**40%
**Defective Material/Parts**20%
**Functionality-Overall**20%
**Ease Of Use**10%
**Size-Overall**10%
## **Common questions**
- **Is spartan - grey hair reverse bar profitable to sell on Amazon United Kingdom?**
- The niche generates £0/yr across 4 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +2.8%. Flapen's verdict: Skip it (26/100).
- **How competitive is the spartan - grey hair reverse bar niche?**
- 4 brands and 28 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in spartan - grey hair reverse bar?**
- Top complaints mined from reviews: Functionality-Overall, Stain Resistance, Color. The return rate is 0.0%.
- **When does demand for spartan - grey hair reverse bar peak?**
- Demand is steady year-round — the busiest month runs 1.8× the quietest.
- **What does it cost to enter the spartan - grey hair reverse bar niche?**
- Listings span £6.05–£13.67; the average listing price is £8.84 (sweet spot $15–$100). The average incumbent carries 1,548 reviews — the moat a new listing must climb.
## **Related niches in Beauty**
- 68 [**cellulite massager**](https://flapen.com/research/uk/beauty/cellulite-massager)£199K/yr+31.0%**Worth a look**- 68 [**anti chafing stick**](https://flapen.com/research/uk/beauty/anti-chafing-stick)£446K/yr+174.2%**Worth a look**- 68 [**mens aftershave**](https://flapen.com/research/uk/beauty/mens-aftershave)£5.0M/yr+20.0%**Launch it**- 68 [**face gems**](https://flapen.com/research/uk/beauty/face-gems)£156K/yr+184.1%**Worth a look**- 68 [**england face paint**](https://flapen.com/research/uk/beauty/england-face-paint)£20K/yr>1,000%**Worth a look**- 68 [**primus aged garlic**](https://flapen.com/research/uk/beauty/primus-aged-garlic)£18K/yr+144.2%**Worth a look**[**All Beauty niches **](https://flapen.com/research/uk/beauty)