L-Citrulline Powder or Capsules
Zoom  Zoom

L-Citrulline Powder or Capsules

Our Price:  £14.95
List Price:  £19.95
Saving Of:  £5.00 (25%)

(£12.46 Exc. VAT)
  (22 Reviews)

Manufacturer:  Supplement Place


In stock, immediate despatch  

Electric Mini WhiskElectric Mini Whisk
Tell a Friend
Continue Shopping
Special Offer!!!!!:  Free delivery is available when you order £29.00 or more of any product.

L-Citrulline Supplement Powder and Capsules

We recommend buying our L-Citrulline powder, available in 250g, 500g, or 1kg packs. We also sell capsules but you should be prepared to swallow 8 per day.

Powder Dosage: We recommend taking between 5-12g of L-Citrulline daily (1-2 scoops) with or without food. One flat measure of the scoop included is approximately 5g. It has a slightly bitter aftertaste but can be mixed with juice, squash or anything else you prefer. Note that it may take 2-4 weeks for the full benefits of L-Citrulline to become apparent, although nitric oxide production leading to increased blood flow should be noticeable within hours

Capsule Dosage: Take 8 capsules daily in the morning, or 4 in the morning and 4 in the afternoon, with or without food

Our L-Citrulline is made from fermented corn, so is suitable for vegetarians and vegans.

Contra Indicators:
  • Do not take L-Citrullline during pregnancy or while breast-feeding.
  • Allergies or asthma: L-Citrulline can cause an allergic response or make swelling in the airways worse.
  • Low blood pressure: L-Citrulline might lower blood pressure, which could be a problem if you already have this.
  • Surgery: There is a concern that L-Citrulline might interfere with blood pressure control during and after surgery. Stop taking L-Citrulline at least 2 weeks before scheduled surgery.
  • As always, you should consult your GP is you have any concerns about taking any supplements.

L-Citrulline is a relative newcomer to the market. Researchers have for years concentrated on L-Arginine to raise nitric oxide in the blood, which in turn relaxes the hardened artery walls and, in addition to lowering blood pressure, increases blood flow throughout the whole body.

But Arginine has had mixed results and in one study even appeared to be dangerous for some men with advanced heart disease. But it did have very beneficial effects on some, particularly those with erection problems. Unfortunately, the dose required to be effective - 5 grams - approaches the daily amount given (9 grams/day) in a study of Arginine where six men died.

Of course, Arginine can be used successfully when at much lower doses (1.5 grams/day) when combined with other supplements such as Pycnogenol. But all of this goes to show that L-Arginine has definite issues when used by itself. A further disadvantage of ingesting L-Arginine directly is that it is metabolized in the liver by arginase - in men with heart disease, arginase is “upregulated” or more active - meaning that more Arginine is converted to the amino acid ornithine, which, as mentioned previously, can potentially lead to herpes outbreaks and other issues.

L-Citrulline, on the other hand, seems to produce equal or better results and it completely bypasses the liver and the whole arginase conversion process. It is possible to supplement with L-Citrulline by eating watermelon daily but you would probably need around a quarter of an average-size watermelon.

We recently started selling L-Citrulline powder and L-Citrulline capsules (note that there are many products containing Citrulline Malate and this seems to be very effective for bodybuilding and muscle development, but L-Citrulline should be used for increasing blood flow) and it is rapidly climbing the ranks of our best sellers (currently Number 4, below three products that we have been selling for years). Unlike Arginine, L-Citrulline does not cause diarrhoea and produces a long-lasting effect rather than the "spike" produced by Arginine.

*Product reviews are the opinions of customers. Individual results may vary.

Other customers also bought
Customer Reviews *
Average Rating (22 Reviews):  
Write a Review and share your opinions!

Just the thing.
Monday, 7 August 2017  |  Andre

Excellent product, shall be buying again.

Was this helpful to you?  Yes  /  No

This review has not been appraised.

Great Product
Monday, 9 January 2017  |  Conor

Very happy with this Product as I have Diabetes and this powder massively helps,I also use to help with ED and again I think this is a Great product and has so many benefits happy Customer

Was this helpful to you?  Yes  /  No

1 of 1 people found this review helpful.

A big help!
Thursday, 22 September 2016  |  Dawn

Waited for a couple of months before this review. Taken with pine bark. Fobbed off by 3 doctors. Gone from nothing at all(no night time or morning!) to almost pre ED. fingers crossed for continued improvement. Will definitely purchase again. Swift delivery and good packaging.

Was this helpful to you?  Yes  /  No

This review has not been appraised.

Thursday, 25 August 2016  |  Peter

I take this product to help with blood pressure and atherosclerosis issues. The product and service are excellent.

Was this helpful to you?  Yes  /  No

1 of 1 people found this review helpful.

Product effectiveness
Thursday, 18 August 2016  |  Sanjiv

Good product.

Was this helpful to you?  Yes  /  No

This review has not been appraised.

Very pleased
Thursday, 19 May 2016  |  Margaret

I'm very pleased with the service I have received from Supplement Place.

I will continue to use you and have already given your name to a few people.

Thank you so much!


This review has not been appraised.

Saturday, 23 April 2016  |  David

Very good product helps with blood pressure will buy again

Was this helpful to you?  Yes  /  No

This review has not been appraised.

Powder may be better
Wednesday, 24 February 2016  |  Richard

Although it's too early to gauge the result I'm minded to go for the powder. You need to take quite a few tablets. Prompt response to order and clarity on delivery status.

Was this helpful to you?  Yes  /  No

This review has not been appraised.


We always recommend powder Richard, 8 capsules daily is a lot to swallow, and the powder is much cheaper

very quick delivery
Monday, 25 January 2016  |  Alan

ordered, delivered on time, very prompt service

Was this helpful to you?  Yes  /  No

This review has not been appraised.

Wednesday, 16 December 2015  |  Ian

take 8 tabs in the morning. over the first few day I feel a lot better in myself.

Was this helpful to you?  Yes  /  No

2 of 3 people found this review helpful.

Read all 22 customer reviews...

Related Products
Energy Bundle

Energy Bundle£43.99   £34.99

Heart Health Bundle

Heart Health Bundle£58.92   £46.99