l citrulline
Worth a lookShows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 6% kills the launch gate
Market size
Incredible$4.3M$4.3M/yr · 1.6M searches
Avg price
Incredible$24.70avg listing price — sweet spot $15–$100
Conversion
Great11.0%search→purchase rate — share of searches ending in a sale
Price range
Great$10.10–$76.27cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good47%top-5 click share — leaders hold, buyers still browse
Brand share
Good72%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Bad-1.8%90-day search growth — must beat 0% to launch
Review moat
Bad5,971.17avg incumbent reviews — the moat a new listing must climb
Competition
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.Brands
17 rising
Sellers
30
Top-5 brand share
72%
Open market
23%
- Nutricost32%
- BulkSupplements15%
- DORADO NUTRITION13%
- Kaged7%
- NOW Foods5%
- HAVASU NUTRITION5%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 29 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nutricost L-Citrulline 2500mg Per Serving 60 Servings 1250mg Per Tablet 120 Tabs - Non-GMO and Gluten Free Supplement
Nutricost$19.624.6★1,055 rev
L Citrulline 3000mg Supplement (240 Capsules) Support L Arginine & Nitric Oxide Pills - L-Citrulline For Men & Women - Muscle Recovery & Pump Supplement - 3rd Party Tested Vegan Non-GMO - USA Made
DORADO NUTRITION$17.894.5★1,894 rev
Nutricost Pure L-Citrulline (Base) Powder (600 Grams)
Nutricost$29.474.7★3,343 rev
Kaged L-Citrulline Powder | Unflavored | Enhanced Pumps | Improve Muscle Vascularity | Nitric Oxide Booster | Supplements for Men & Women | 100 Servings
Kaged$16.364.7★289 rev
Nutricost L-Citrulline 500mg 120 Capsules - Gluten Free Non-GMO 1000mg Per Serving (60 Serv)
Nutricost$12.934.5★8,765 rev
Newest
by launch date
NOW Foods Supplements L-Citrulline 750 mg Supports Protein Metabolism* Amino Acid 240 Veg Capsules
NOW Foods$33.8332 rev
LincNutri Nitric Oxide Supplements for Men Nitric 1550mg L-Arginine HCl Nitric Oxide Booster for Men L-Citrulline ViNitrox & Oxystorm 3-Pathway Complex with BioPerine 90 Capsules
LincNutri$34.9965 rev
Bucked Up L-Citrulline 200 Capsules | 1500mg Per Serving | Gluten-Free | Non-GMO | Third-Party Tested | Premium Citrulline Supplement for Daily Use - 100 Servings (200 Capsules)
Bucked Up$14.5151 rev
Formulation Factory Heart of Steel Nitric Oxide Supplements for Men & Women Nitric Oxide Booster for Blood Flow & Circulation with L-Citrulline 1000mg L-Arginine CoQ10 & Resveratrol - 120 Capsules
Formulation Factory$55.59665 rev
Nugenix Essentials L-Citrulline Supplement for Enhanced Blood Flow and Performance - 1500 mg 60 Capsules
Nugenix$14.64288 rev
Trending
90-day click momentumNOW Foods Supplements L-Citrulline 750 mg Supports Protein Metabolism* Amino Acid 240 Veg Capsules
NOW Foods$33.834.8★
LincNutri Nitric Oxide Supplements for Men Nitric 1550mg L-Arginine HCl Nitric Oxide Booster for Men L-Citrulline ViNitrox & Oxystorm 3-Pathway Complex with BioPerine 90 Capsules
LincNutri$34.994.4★
BulkSupplements.com L-Citrulline Capsules - Citrulline Supplement L-Citrulline 3000mg Capsules - Citrulline Pills Gluten Free - 8 Capsules per Serving 240 Capsules (Pack of 1)
BulkSupplements$18.114.3★
Formulation Factory Heart of Steel Nitric Oxide Supplements for Men & Women Nitric Oxide Booster for Blood Flow & Circulation with L-Citrulline 1000mg L-Arginine CoQ10 & Resveratrol - 120 Capsules
Formulation Factory$55.594.5★
BulkSupplements.com L-Citrulline Powder - Citrulline Supplement Nitric Oxide Supplement - Unflavored & Gluten Free - 3g per Servings 1kg (2.2 lbs) (Pack of 1)
BulkSupplements$33.314.7★
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — -1.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent product”
“Fair price”
“it really boosts my energy”
“Great BP support”
“Excellent Supplement”
“AS DESCRIBED”
“Effective”
“I like that it supports heart health”
“clean ingredients”
“Easy Addition to My Daily Wellness Routine”
What buyers complain about
“Didn't work”
“The taste was extremely bitter”
“Waste of money”
“definitely poor quality controls”
“Avoid - bad side effects”
“fails to tell you it takes 4 capsules to equal that dose”
“These are way too big”
“All vitamin supplements are a bit over priced”
“but lo and behold when I re-read the ingredients in the new bottle I immediately cancelled it”
“It seems deceiving to me”