---
title: "Mars Nitric Oxide Capsules — £433K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/mars-nitric-oxide-capsules"
last_updated: "2026-07-31T22:53:40.615Z"
locale: en
meta:
description: "Niche score 53/100 · £433K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · £433K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Mars Nitric Oxide Capsules — £433K/yr Amazon UK Niche (2026) - Flapen"
---
# **mars nitric oxide capsules**
**Worth a look**
Shows low returns (0.0%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 57Growth 11Conversion 95Competition 13Returns 100Price range 95Avg price 95Brand share 0Review moat 48Quality gap 96
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Quality gap**
**Incredible****3.9★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Incredible****12.6%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****£26.78**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****£15.87–£41.06**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****£433K**
£433K/yr · 129K searches
**Review moat**
**Okay****1,684.78**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****85%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-27.8%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=uk&signal=quality_gap "Avg rating < 4.0")
According to Flapen's Amazon United Kingdom niche tracking, mars nitric oxide capsules is a £433K/yr Amazon United Kingdom market (129K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Oct. Verdict: Worth a look — 53/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mars nitric oxide capsules market data**
- **Units sold / yr**
- **8K–10K**
- avg 250–500/product
- **Revenue / yr**
- **£214K–£268K**
- units × avg price
- **Conversion rate**
- **12.6%**
- **Avg BSR**
- **#767**
- **Page quality**
- **0%**
- **Prime**
- **89%**
- **Sponsored**
- **100%**
- **Out of stock**
- **7.7%**
- **Avg brand age**
- **31 months**
- **Avg seller age**
- **188 days**
## **Competition & brand share**
The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▼falling
**Sellers**
**7**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**85%**
Top 20: 100%
**Open market**
**0%**
- mars by GHC93% - Nutricost4% - Toniiq3%
## **Demand & seasonality**
Weekly Amazon search volume, last 55 weeks — -27.8% search growth over the last 90 days.
4K3KSpike '25Spike '26 seasonJulAugSepOctNovDecJanFebMarAprMayJunJul
Peak months: Jan, Feb, Oct · busiest ÷ quietest = 3.0×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/mars-nitric-oxide-capsules/trend)
## **Top mars nitric oxide capsules search terms**
- **mars nitric oxide capsules**98K/yr-30.3%6.9% conv. - **mars nitric oxide capsules for men**5K/yr+103.5%6.4% conv. - **mars nitric oxide**7K/yr-0.9%4.3% conv. - **mars nitroflux**10K/yr-67.0%6.0% conv. - **mars nitroprex**6K/yr-52.4%2.1% conv. - **mars nitric oxide capsules with l-arginine l-citrulline & adaptogens**2K/yr-60.1%3.5% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/mars-nitric-oxide-capsules/search-terms)
## **Top mars nitric oxide capsules 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%£43K20%£87K30%£130K40%£173K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Mars Nitric Oxide Capsules with L-Arginine L-Citrulline & Adaptogenic Blend | 60 Capsules | Pack of 1**mars by GHC**£21.01**3.9★201 rev](https://www.amazon.co.uk/dp/B0F99PQ4VF) [2**Mars by GHC Growth Max Combo | Nitric Oxide Capsules + SurgeMax Capsules | 120 Capsules | Pack of 1**mars by GHC**£32.70**3.8★74 rev](https://www.amazon.co.uk/dp/B0FHQK4CTF) [3**Mars by GHC NitroFlux Nitric Oxide Capsules with L-Arginine Pre Workout Circulation Booster Ashwagandha & Moringa Performance & Endurance Support Pack of 1**mars by GHC**£21.16**3.6★38 rev](https://www.amazon.co.uk/dp/B0GDTMM18R) [4**Mars by GHC Beast Mode Combo Nutritional Supplement with Nitric Oxide & Creatine Dietary Supplement 60 Capsules Each Bottle**mars by GHC**£28.51**4.0★27 rev](https://www.amazon.co.uk/dp/B0FHQK6QPB) [5**Mars by GHC NitroBurn Combo: Powered by Nitric Oxide & Himalayan Berberine | Pack of 1 | 120 Capsules**mars by GHC**£30.42**3.6★74 rev](https://www.amazon.co.uk/dp/B0F9LBV5QT)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Mars by GHC NitroFlux Nitric Oxide Capsules with L-Arginine Pre Workout Circulation Booster Ashwagandha & Moringa Performance & Endurance Support Pack of 1**mars by GHC**£21.16**38 rev6mo ago](https://www.amazon.co.uk/dp/B0GDTMM18R) [**Mars by GHC Growth Max Combo | Nitric Oxide Capsules + SurgeMax Capsules | 120 Capsules | Pack of 1**mars by GHC**£32.70**74 rev1y ago](https://www.amazon.co.uk/dp/B0FHQK4CTF) [**Mars by GHC Beast Mode Combo Nutritional Supplement with Nitric Oxide & Creatine Dietary Supplement 60 Capsules Each Bottle**mars by GHC**£28.51**27 rev1y ago](https://www.amazon.co.uk/dp/B0FHQK6QPB) [**Mars by GHC MaxDrive Combo: Powered by Nitric Oxide & Sea Moss Capsules Pack of 1**mars by GHC**£31.51**23 rev1y ago](https://www.amazon.co.uk/dp/B0FGXRSCN3) [**Mars by GHC NitroBurn Combo: Powered by Nitric Oxide & Himalayan Berberine | Pack of 1 | 120 Capsules**mars by GHC**£30.42**74 rev1y ago](https://www.amazon.co.uk/dp/B0F9LBV5QT)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Mars Nitric Oxide Capsules with L-Arginine L-Citrulline & Adaptogenic Blend | 60 Capsules | Pack of 1**mars by GHC**£21.01**3.9★**▲ 108%**](https://www.amazon.co.uk/dp/B0F99PQ4VF) [**Nutricost Nitric Oxide Booster 2250mg 180 Capsules - 750mg Per Casule 60 Servings - Gluten Free and Non-GMO**Nutricost**£15.87**4.4★**▲ 47%**](https://www.amazon.co.uk/dp/B09B4DWNYQ) [**Mars by GHC Growth Max Combo | Nitric Oxide Capsules + SurgeMax Capsules | 120 Capsules | Pack of 1**mars by GHC**£32.70**3.8★**▲ 34%**](https://www.amazon.co.uk/dp/B0FHQK4CTF) [**Mars by GHC MaxDrive Combo: Powered by Nitric Oxide & Sea Moss Capsules Pack of 1**mars by GHC**£31.51**4.0★**▲ 26%**](https://www.amazon.co.uk/dp/B0FGXRSCN3) [**Mars by GHC NitroFlux Nitric Oxide Capsules with L-Arginine Pre Workout Circulation Booster Ashwagandha & Moringa Performance & Endurance Support Pack of 1**mars by GHC**£21.16**3.6★**▼ 19%**](https://www.amazon.co.uk/dp/B0GDTMM18R)
**~~View all trending →~~**
## **What buyers say about mars nitric oxide capsules**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**16%
*“so far no complaints”*
**Efficiency**12%
*“Seems effective and simple to take”*
**Energy Level**11%
*“Deffinatly have more energy”*
**Value For Money**9%
*“Excellent value for money”*
**Advertised Vs Actual Product**8%
*“Does everything it says”*
**Strength**7%
*“Solid as a rock no turning back lol”*
**Vitamin**6%
*“Best booster I ever had”*
**Nutritional Content**3%
*“Premium supplement combo”*
**Dosage**3%
*“Absolutely dose what it says”*
**Blood Pressure**3%
*“Lower Blood Pressure without Side Effects”*
### **What buyers complain about **
**Functionality-Overall**24%
*“Does not as far as I know do anything”*
**Quality-Overall**19%
*“Feedback not great”*
**Advertised Vs Actual Product**18%
*“Not working like advertised”*
**Value For Money**10%
*“Waste of money”*
**Dosage**4%
*“Amoyyou have to take”*
**Energy Level**4%
*“get my self out of feeling run down all the time Didnt work Ill stick to monster energy drinks they have better effect”*
**Blood Pressure**3%
*“it made my blood pressure drop”*
**Stale/Rotten/Spoiled**3%
*“Rubbish”*
**Leak-Proof**3%
*“the powder was everywhere inside”*
**Side Effects**3%
*“see how they affect you first”*
## **Common questions**
- **Is mars nitric oxide capsules profitable to sell on Amazon United Kingdom?**
- The niche generates £433K/yr across 9 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -27.8%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the mars nitric oxide capsules niche?**
- 3 brands and 7 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in mars nitric oxide capsules?**
- Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 0.0%.
- **When does demand for mars nitric oxide capsules peak?**
- Demand peaks in Jan–Feb–Oct; the busiest month runs 3.0× the quietest.
- **What does it cost to enter the mars nitric oxide capsules niche?**
- Listings span £15.87–£41.06; the average listing price is £26.78 (sweet spot $15–$100). The average incumbent carries 1,685 reviews — the moat a new listing must climb.
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