Puretrex Nitric Oxide Complex 3000 MG+ food supplement pouch displayed on a marble surface with beetroot, grapes, a sliced blood orange, and a scoop of powder.
PURETREX Nitric Oxide Complex graphic showing key benefits such as increased energy, endurance, and workout performance
PURETREX Nitric Oxide Complex infographic showing full ingredient breakdown including L-Citrulline, AAKG, Beetroot Extract, and S7 for strength and stamina
PURETREX Nitric Oxide Complex image highlighting premium formulation, UK quality manufacturing, and fitness performance benefits
Supplement Facts for PURETREX Nitric Oxide Complex showing dosage, serving size, and nutritional details for 120 capsules
Letterbox-friendly packaging ensuring fast delivery straight to your mailbox without the need to wait at home or collect the parcel
PURETREX Nitric Oxide Complex 3000mg+ supplement pouch with L-Citrulline, AAKG, Beetroot, Red Spinach, S7, and Vitamin C, 120 capsules for energy and endurance

L-Citrulline & Beetroot Complex

4.6 from 14 reviews

1,000mg of micronised L-citrulline per serving, with 600mg of AAKG, red spinach (9% nitrates), grape seed, S7® and vitamin C, in a vegan capsule.

  • 120 capsules
  • 3 a day
  • 40-day supply
  • Vitamin C contributes to the protection of cells from oxidative stress.
  • All 7 ingredients and their doses printed on the label.
Quantity

Free UK delivery on orders over £50 with Royal Mail Tracked 48. Order by 1pm Monday to Friday and it ships the same day. UK delivery in 1–4 business days.

Ingredients & nutrition information

Nutrition information

Serving size: 3 capsules · 40 servings per pouch

Ingredient Per 3 capsules%NRV
L-Citrulline (micronised) 1,000mg–
L-Arginine Alpha-Ketoglutarate (AAKG) 600mg–
Beetroot Extract (10:1, equivalent to 1,500 mg raw beet) 150mg–
OXYSTORM® Red Spinach Extract (9% nitrates) 300mg–
S7® Plant Blend 50mg–
Grape Seed Extract (≥95% OPC) 100mg–
Vitamin C 80mg100%

Other ingredients: pullulan (vegan capsule shell). NRV = Nutrient Reference Value. Made in a facility that does not process common allergens such as milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy or sesame. Net weight 72g.

Directions & warnings

Directions: take 3 capsules daily with water, preferably with a meal, or as directed by a healthcare professional. Do not exceed the recommended daily dose.

Warnings: food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. If you are pregnant, breastfeeding, or taking medication, consult your doctor before use. Not intended for use by children under 18. Keep out of reach of young children.

Storage: store in a cool, dry place away from direct sunlight.

WHAT'S INSIDE

Every ingredient. What it is.

Tap an ingredient to see what it is. Amounts are per daily dose, as printed on the label.

Full ingredients panel
L-Citrulline L-Citrulline1,000 mg · micronised
What it is

An amino acid first identified in watermelon.

AAKG AAKG600 mg
What it is

L-arginine bound to alpha-ketoglutarate. Arginine is an amino acid found in protein foods.

Red Spinach Red Spinach300 mg · 9% nitrates
What it is

OXYSTORM®, a branded extract of red spinach, a leafy amaranth eaten as a vegetable.

Beetroot Beetroot150 mg · 10:1 extract
What it is

Extract from beetroot (Beta vulgaris), the familiar red root vegetable.

Grape Seed Grape Seed100 mg · at least 95% OPC
What it is

Extract from grape seeds. OPC stands for oligomeric proanthocyanidins, a group of plant compounds.

S7® S7®50 mg
What it is

A branded blend of plant-based ingredients.

Vitamin C Vitamin C80 mg · 100% NRV
What it is

An essential vitamin, also found in citrus fruit and peppers.

Vegan Made in the UK Allergen-free facility

BEFORE YOU BUY ANY L-CITRULLINE

Check the label first

WHAT TO CHECKPURETREX
L-citrulline per daily dose stated1,000 mg
Extract strengths statedBeetroot 10:1, red spinach 9% nitrates
Proprietary blendOne: S7®, 50 mg

30-day money-back guarantee

Not for you? Email support@puretrex.co.uk within 30 days of receiving your order and send it back. We refund you within 3–5 business days of receiving it. Return postage is yours unless the item is faulty, damaged or incorrect.

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100K+
Customers served
10,000+
Reviews across all channels
4.8/5
Average rating
  • This has definitely levelled up my workouts for sure
  • Love the pump and just the overall experience
  • Seems to help delay fatigue while i am exercising.
  • 5 stars: 11 (79%)
  • 4 stars: 2 (14%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (7%)
A
Anthony
So far so good

So far so good. Have built Nitric Oxide tabs into my daily protocol and remain confident I’m on the right track. Happy to review again after 14 days or more. Great product- fabulous R&D. Anthony

O
Omar
Impressed with this product

I've been taking this product in combination with ultra turkesterone, and I've noticed a significant positive difference in my workouts! I highly recommend giving this product a try ,and I'm excited to see continued progress

A
Anonymous
Seems to help delay fatigue while i am exercising

Seems to help delay fatigue while i am exercising.

R
Rizwana Mirza
Zero results for me

Used consistently as directed for several weeks. Unfortunately, I noticed absolutely no difference at all — no extra energy, no improved circulation, no pre-workout benefit, nothing. The ingredients look great on paper, but the product simply didn’t deliver any of the claimed effects for me personally. For this price I’d have expected to feel something. Disappointing — won’t be buying again.

T
Tony Felton
It really helps with my legs as I have hardened

It really helps with my legs as I have hardened arteries

H
Heather
again

again, brilliant vits, all good stuff

k
kevin leighton

It's really great 👍🏻 it does the job, nicely 👌

S
Shazan Asghar
A trusted place for too quality supplements have only used for a couple of days and felling impre

A trusted place for too quality supplements have only used for a couple of days and felling impre energised, plus fast delivery i also get the vitamin D3 with k2 mo complaints.

M
Max Kawaters
I feel the difference so far I am very happy with the product

I feel the difference so far I am very happy with the product, best in mind Inam judt using it for days

J
J.M.

Good

Z
Zubeir
Love the pump and...

Love the pump and just the overall experience

D
Dino
This has definitely levelled...

This has definitely levelled up my workouts for sure

T
Tavis
Really does what it...

Really does what it says , great stuff

t
teo
very good

i feel very good.

DIRECTIONS

Simple enough to stick

Three capsules on a counter next to a glass of water, a towel and a pair of trainers
  • 1 Take them with a meal

    All three capsules together, with water.

  • 2 Pick one meal

    Breakfast or dinner, whichever is easier to remember.

SUITABILITY

Made for your routine

Great fit if you

  • Want L-citrulline, AAKG and beetroot in one daily capsule
  • Prefer capsules to a powder

Not for you if you

  • Are under 18.
  • Are pregnant, breastfeeding or taking medication, unless your doctor has said yes first.

QUESTIONS

Before you order

What does "equivalent to 1,500 mg raw beet" mean?

The beetroot extract is 10:1: ten parts of beetroot were concentrated into one part of extract. The 150 mg of extract in each daily dose therefore corresponds to 1,500 mg of raw beetroot.

What if I miss a day?

Take your usual 3 capsules the next day. Do not double up to make up for it.

How do I cancel my subscription?

Log in to your account, open Subscriptions and cancel in a few clicks. You can also pause, skip or change the frequency there. If you get stuck, email support@puretrex.co.uk or call 0125 9231 234 and we will do it for you.

PAIRS WELL WITH

Complete the routine

  • Liposomal Vitamin C
    Liposomal Vitamin C £30.00 1 softgel a day
    Why add it

    Vitamin C contributes to the normal function of the immune system. 1,000 mg of vitamin C in one softgel a day.