l citrulline powder
Skip itA small market ($55K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Great9.7%search→purchase rate — share of searches ending in a sale
Avg price
Good£14.43avg listing price — sweet spot $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Price range
Good£5.62–£29.47cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay75%top-5 brand share — brands hold most of the demand
Review moat
Okay2,461.79avg incumbent reviews — the moat a new listing must climb
Competition
Okay62%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
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
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.Top l citrulline powder search terms
- l citrulline powder24K/yr
- l-citrulline powder9K/yr
- citrulline powder6K/yr
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.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
L-Citrulline Malate Powder 500g Unflavoured 5 Grams per Serving Vegan Fermented Amino Acid Resealable and Recyclable Pouch by Alpha01
ALPHA01£6.784.3★19 rev
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£10.804.6★218 rev
L-Citrulline Powder 500g Unflavoured by Freak Athletics
Freak Athletics£22.014.3★151 rev
Bulk Citrulline Malate 500 g
Bulk£7.944.2★456 rev
L-Citrulline Powder (Base) - Amino Acid - Pure - Non-GM (500g)
Peak Supps£15.894.3★44 rev
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£8.111,301 rev
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£10.80218 rev
L Citrulline 3000mg - 240 L-Citrulline Capsules - 2 Months Supply
WeightWorld£16.421,331 rev
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£14.76559 rev
L-Citrulline Powder (Base) - Amino Acid - Pure - Non-GM (500g)
Peak Supps£15.8944 rev
Trending
90-day click momentumL-Citrulline Malate Powder 500g Unflavoured 5 Grams per Serving Vegan Fermented Amino Acid Resealable and Recyclable Pouch by Alpha01
ALPHA01£6.784.3★
L-Citrulline Powder (Base) - 1kg - Amino Acid - Pure
Peak Supps£24.244.3★
Nitrosurge Pre Workout Powder - 6g L-Citrulline 3.2g Beta Alanine 2.5g Betaine Anhydrous 360mg Caffeine Anhydrous - 30 Servings Arctic White
Jacked Factory£15.874.3★
Nitrosurge Pre Workout Powder - 6g L-Citrulline 3.2g Beta Alanine 2.5g Betaine Anhydrous 360mg Caffeine Anhydrous - 30 Servings Blue Raspberry
Jacked Factory£15.404.3★
L-Citrulline Powder (Base) - Amino Acid - Pure - Non-GM (100g)
Peak Supps£5.624.3★
What buyers say about l citrulline powder
What buyers praise and complain about, mined from review topics.What buyers love
“Well-made, easy to take”
“Good value”
“As advertised well pleased”
“easy to take without any gut issues”
“Easy to use”
“blood pressure is good”
“Excellent I feel the benefit already”
“More energy”
“no bad reactions”
“Good dietary supplement”
What buyers complain about
“Can't say if they've done anything for me after taking 180 tablets”
“have no taste”
“Not working”
“Very poor quality as the main ingredient is corn starch which is just a filler”
“it had immediate effects”
“earthy smell that I found extremely unpleasant”
“I have high blood pressure”
“It does have that natural sour tang because of the malate”
“But it doesn't do like they advertise”
“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.