What is the right citrulline malate dose?
Studies most often use 6–8 g of citrulline malate (in a 2:1 product, roughly 3.5–4.5 g of L-citrulline) about 60 minutes before training. The evidence is emerging and mixed, with small effects on high-rep sets, and the muscle pump is temporary. In South Africa a 6 g dose costs R4.78–R8.62 (October 2026).
- Common protocol: 6–8 g of citrulline malate about 60 minutes before training.
- A 2:1 product gives roughly 3.5–4.5 g of L-citrulline in a 6–8 g dose.
- Evidence level is emerging; a 2021 critical review (Gough et al.) found results equivocal.
- Citrulline malate costs R4.78–R8.62 per 6 g in South Africa (October 2026).
- Check with a doctor if you take nitrates, PDE5 inhibitors or blood pressure medicines.
What is the right citrulline malate dose?
The usual protocol is 6–8 g of citrulline malate, taken about 60 minutes before training. Citrulline malate is typically a 2:1 mix of L-citrulline and malic acid, so that dose delivers roughly 3.5–4.5 g of L-citrulline. Studies of pure L-citrulline often use about 3–6 g. Smaller doses are not well studied.
Does citrulline malate work?
The evidence level is emerging. Citrulline is converted to arginine in the kidneys, raising nitric-oxide production more effectively than arginine itself. The proposed benefits are a few more repetitions in high-rep sets and less soreness, but trial results are mixed and effects are small. A 2021 critical review (Gough et al.) concluded the evidence on exercise performance is equivocal and noted that the citrulline-to-malate ratio in products is not always accurate. It is a nice-to-have for lifters doing high-volume work, not a must-have, and it does little for endurance.
What about the pump?
The pump is real but transient: blood flow to working muscle rises and fades after training. A bigger pump has not been shown to build more muscle. Do not judge the supplement by how a session feels.
How do common products compare?
| Product | Price (October 2026) | Cost per 6 g |
|---|---|---|
| My Whey Pure Citrulline Malate 2:1, 250 g | R199, Takealot | R4.78 |
| Muscle Works Citrulline Malate, 180 g | R159, Takealot | R5.30 |
| ATP Fitness Citrulline Malate, 250 g | R280, shop.atpfit.co.za | R6.72 |
| Biogen L-Citrulline Malate, 250 g | R330, Dis-Chem | R7.92 |
| NPL L-Citrulline Malate, 240 g | R345, Dis-Chem | R8.62 |
Tub scoops differ: Biogen's scoop is 4.8 g (R6.34 per scoop) and NPL's is 6 g (R8.62), so check the dose per scoop. The cheapest verified option is My Whey; ATP is mid-pack. ATP's strengths are a single ingredient with no sweeteners or flavouring; its trade-offs are the price against My Whey, an unflavoured sour taste, a young brand and no published sport certification.
What do pre-workouts contain?
Biogen Premium has 4 g of citrulline malate per serving and USN Qhush Platinum Black 6 g (global page), so even ready-made tubs may fall short of the 6–8 g studied range. See the best pre-workout in South Africa.
Citrulline malate or L-citrulline?
Both are used. Citrulline malate is cheaper but you need a larger weight to reach the same citrulline. See citrulline malate versus L-citrulline and arginine versus citrulline.
Safety and who should check with a doctor
Citrulline is well tolerated at studied doses, with occasional mild stomach discomfort. Because it may add to the blood-pressure-lowering effect of nitrates, PDE5 inhibitors (such as sildenafil) and antihypertensive drugs, speak to your doctor if you take them. Limited data exist for pregnancy and under-18s, so we advise avoiding it. Drug-tested athletes should use batch-tested products. Compare options on our best citrulline in South Africa page.
Products mentioned, with dated prices
| Product | Size | Price | R per 6 g | Sweeteners |
|---|---|---|---|---|
| My Whey Pure Citrulline Malate 2:1 Powder 250 g | 250 g | R199Takealot (listing via PriceCheck), Oct 2026 | R4.78 | not stated |
| Muscle Works Citrulline Malate 180 g | 180 g | R159Takealot (listing via PriceCheck), Oct 2026 | R5.30 | not stated |
| ATP Fitness Citrulline Malate | 250 g | R280ATP Fitness shop, Oct 2026 | R6.72 | None |
| Biogen L-Citrulline Malate Powder Unflavoured 250 g | 250 g | R330Dis-Chem Living Fit, Oct 2026 | R7.92 | not stated |
| NPL L-Citrulline Malate Powder 240 g | 240 g | R345Dis-Chem Living Fit, Oct 2026 | R8.62 | not stated |
ATP Fitness is a commercial partner of Healthnews24 and its products are featured on this site. Rankings follow our published method, and every pick, including ATP Fitness, shows its price maths and trade-offs. Read our disclosure.
Compare the options
Related questions
- Citrulline malate vs L-citrulline: which is better?
- What is the best citrulline malate in South Africa?
- Arginine vs citrulline: which raises nitric oxide better?
- Does pre-workout raise blood pressure?
- What is the best stimulant-free pre-workout in South Africa?
Sources
- Gough LA et al. (2021) A critical review of citrulline malate supplementation and exercise performance. Eur J Appl Physiol
- Maughan RJ et al. (2018) IOC consensus statement: dietary supplements and the high-performance athlete. BJSM 52:439
- Australian Institute of Sport Supplement Framework: Group A
- Biogen: Premium Pre-Workout product article
Educational information only, not medical advice. Speak to a doctor, pharmacist or registered dietitian before using supplements if you are pregnant or breastfeeding, under 18, taking medication, or living with kidney, liver or heart disease.
Cite this page: Healthnews24, “What is the right citrulline malate dose?”, updated 27 October 2026, https://www.healthnews24.co.za/answers/citrulline-malate-dose-for-pumps/. Plain-text version: /answers/citrulline-malate-dose-for-pumps.md