---
title: "L Citrulline Powder — £55K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/l-citrulline-powder"
last_updated: "2026-07-31T17:38:33.471Z"
locale: en
meta:
description: "Niche score 49/100 · £55K/yr market · 39K searches/yr · £14.43 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · £55K/yr market · 39K searches/yr · £14.43 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "L Citrulline Powder — £55K/yr Amazon UK Niche (2026) - Flapen"
---
# **l citrulline powder**
**Skip it**
A small market ($55K/yr) — this niche doesn't clear our bar today.
Market size 14Growth 19Conversion 86Competition 39Returns 100Price range 61Avg price 70Brand share 49Review moat 40Quality gap 63
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****9.7%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****£14.43**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Price range**
**Good****£5.62–£29.47**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****75%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****2,461.79**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****62%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-11.3%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****£55K**
£55K/yr · 39K searches
**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, l citrulline powder is a £55K/yr Amazon United Kingdom market (39K searches/yr). The top 5 brands hold 75% of demand. Verdict: Skip it — 49/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **l citrulline powder market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **£43K–£58K**
- units × avg price
- **Conversion rate**
- **9.7%**
- **Avg BSR**
- **#16**
- **Page quality**
- **0%**
- **Prime**
- **68%**
- **Sponsored**
- **53%**
- **Out of stock**
- **12.2%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **149 days**
## **Competition & brand share**
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▼falling
**Sellers**
**26**
**Top-5 brand share**
**75%**
Top 20: 100%
**Top-5 click share**
**62%**
Top 20: 100%
**Open market**
**16%**
- ALPHA0124% - Peak Supps18% - Applied Nutrition13% - Freak Athletics11% - Bulk10% - BANDINI9% - Open — no brand owns it (6 brands, 16%)
## **Demand**
Weekly Amazon search volume, last 25 weeks — -11.3% search growth over the last 90 days.
1K600Spike '26Feb '26Mar '26Mar '26Apr '26May '26Jun '26
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/l-citrulline-powder/trend)
## **Top l citrulline powder search terms**
- **l citrulline powder**24K/yr-6.2%7.9% conv. - **l-citrulline powder**9K/yr-19.9%7.8% conv. - **citrulline powder**6K/yr-17.2%6.0% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/l-citrulline-powder/search-terms)
## **Top l citrulline powder 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%£3K10%£5K15%£8K20%£11K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**L-Citrulline Malate Powder 500g Unflavoured 5 Grams per Serving Vegan Fermented Amino Acid Resealable and Recyclable Pouch by Alpha01**ALPHA01**£6.78**4.3★19 rev](https://www.amazon.co.uk/dp/B0DDMD2RWX) [2**Applied Nutrition Citrulline Malate 2:1 | 3000mg per Serving Nitric Oxide Booster Amino Acid Powder Supports Muscle Recovery Improves Performance Vegan Gluten Free (300g - 100 Servings) (Unflavoured)**Applied Nutrition**£10.80**4.6★218 rev](https://www.amazon.co.uk/dp/B0D6W6TYXZ) [3**L-Citrulline Powder 500g Unflavoured by Freak Athletics**Freak Athletics**£22.01**4.3★151 rev](https://www.amazon.co.uk/dp/B09MV11HPH) [4**Bulk Citrulline Malate 500 g**Bulk**£7.94**4.2★456 rev](https://www.amazon.co.uk/dp/B00H3C13GI) [5**L-Citrulline Powder (Base) - Amino Acid - Pure - Non-GM (500g)**Peak Supps**£15.89**4.3★44 rev](https://www.amazon.co.uk/dp/B0BYPHP7N2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Beetroot Complex & L-Citrulline 10 000mg | 180 Capsules | High Strength | Nitric Oxide Booster to Support Circulation for Energy & Daily Wellness | Vegan Non-GMO UK Made 3 Months | EVO NUTRITION**EVO NUTRITION**£8.11**1,301 rev11mo ago](https://www.amazon.co.uk/dp/B0FLQBKC2F) [**Applied Nutrition Citrulline Malate 2:1 | 3000mg per Serving Nitric Oxide Booster Amino Acid Powder Supports Muscle Recovery Improves Performance Vegan Gluten Free (300g - 100 Servings) (Unflavoured)**Applied Nutrition**£10.80**218 rev2y ago](https://www.amazon.co.uk/dp/B0D6W6TYXZ) [**L Citrulline 3000mg - 240 L-Citrulline Capsules - 2 Months Supply**WeightWorld**£16.42**1,331 rev2y ago](https://www.amazon.co.uk/dp/B0D1YNNYNY) [**Bandini Citrulline Malate 2:1 500g Powder | 3g Daily Dose - 166 Servings | L-Citrulline Malate Nitric Oxide Enhancer | Pre-Workout Supplement for Athletes | Unflavoured Essential Amino Acid | Vegan**BANDINI**£14.76**559 rev2y ago](https://www.amazon.co.uk/dp/B0CWV4873N) [**L-Citrulline Powder (Base) - Amino Acid - Pure - Non-GM (500g)**Peak Supps**£15.89**44 rev3y ago](https://www.amazon.co.uk/dp/B0BYPHP7N2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**L-Citrulline Malate Powder 500g Unflavoured 5 Grams per Serving Vegan Fermented Amino Acid Resealable and Recyclable Pouch by Alpha01**ALPHA01**£6.78**4.3★**▲ 241%**](https://www.amazon.co.uk/dp/B0DDMD2RWX) [**L-Citrulline Powder (Base) - 1kg - Amino Acid - Pure**Peak Supps**£24.24**4.3★**▲ 124%**](https://www.amazon.co.uk/dp/B0BYPFB35P) [**Nitrosurge Pre Workout Powder - 6g L-Citrulline 3.2g Beta Alanine 2.5g Betaine Anhydrous 360mg Caffeine Anhydrous - 30 Servings Arctic White**Jacked Factory**£15.87**4.3★**▲ 121%**](https://www.amazon.co.uk/dp/B0821SQ6QN) [**Nitrosurge Pre Workout Powder - 6g L-Citrulline 3.2g Beta Alanine 2.5g Betaine Anhydrous 360mg Caffeine Anhydrous - 30 Servings Blue Raspberry**Jacked Factory**£15.40**4.3★**▲ 91%**](https://www.amazon.co.uk/dp/B07SNTQ7QQ) [**L-Citrulline Powder (Base) - Amino Acid - Pure - Non-GM (100g)**Peak Supps**£5.62**4.3★**▲ 88%**](https://www.amazon.co.uk/dp/B0BYPGB233)
**~~View all trending →~~**
## **What buyers say about l citrulline powder**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Well-made, easy to take”*
**Value For Money**11%
*“Good value”*
**Advertised Vs Actual Product**10%
*“As advertised well pleased”*
**Ease Of Chewing/Swallowing**6%
*“easy to take without any gut issues”*
**Ease Of Use**6%
*“Easy to use”*
**Blood Pressure**6%
*“blood pressure is good”*
**Vitamin**4%
*“Excellent I feel the benefit already”*
**Energy Level**3%
*“More energy”*
**Side Effects**3%
*“no bad reactions”*
**Nutritional Content**3%
*“Good dietary supplement”*
### **What buyers complain about **
**Dosage**12%
*“Can't say if they've done anything for me after taking 180 tablets”*
**Taste-Overall**11%
*“have no taste”*
**Functionality-Overall**7%
*“Not working”*
**Ingredients-Overall**6%
*“Very poor quality as the main ingredient is corn starch which is just a filler”*
**Side Effects**4%
*“it had immediate effects”*
**Smell**4%
*“earthy smell that I found extremely unpleasant”*
**Blood Pressure**4%
*“I have high blood pressure”*
**Sour**3%
*“It does have that natural sour tang because of the malate”*
**Advertised Vs Actual Product**3%
*“But it doesn't do like they advertise”*
**Value For Money**3%
*“Quite expensive”*
## **Common questions**
- **Is l citrulline powder profitable to sell on Amazon United Kingdom?**
- The niche generates £55K/yr across 19 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -11.3%. Flapen's verdict: Skip it (49/100).
- **How competitive is the l citrulline powder niche?**
- 12 brands and 26 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 75% of demand.
- **What do buyers complain about in l citrulline powder?**
- Top complaints mined from reviews: Dosage, Taste-Overall, Functionality-Overall. The return rate is 0.0%.
- **What does it cost to enter the l citrulline powder niche?**
- Listings span £5.62–£29.47; the average listing price is £14.43 (sweet spot $15–$100). The average incumbent carries 2,462 reviews — the moat a new listing must climb.
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