Can L-Arginine and L-Citrulline Improve Your Pump?
By Evlution Nutrition – EVLUTION NUTRITION | Published: 2026-10-18
Category: How-to Guides
Wondering if L-Arginine and L-Citrulline actually boost your pump? This guide explains how they work, who should use them, and when to choose a different supplement.
Quick answer
Yes, L-Arginine and L-Citrulline can improve your pump by boosting nitric oxide production, which widens blood vessels and increases blood flow to muscles during training.
How they work together
L-Arginine is a direct precursor to nitric oxide, but it's often broken down in the gut before reaching full effect. L-Citrulline helps recycle L-Arginine in the kidneys, making more available for nitric oxide synthesis. That's why many athletes take them together for a stronger pump.
Who should consider an alternative
If you have pre-existing medical conditions, take medications, or are under 18, pregnant, or nursing, this combination may not be safe. Always check with a physician before starting. For those seeking a more immediate stimulant-based pump, a pre-workout with caffeine and nitrates might be a better fit.
Diagnosis: Is L-Arginine + L-Citrulline right for you?
- Symptom: You want better muscle pumps and vascularity during workouts.
- Likely cause: Insufficient nitric oxide production limiting blood flow to working muscles.
- Corrective action: Take 2 capsules of L-Arginine + L-Citrulline daily with a meal. Consistency matters more than timing. Start with one serving daily and assess pump improvement over two weeks.
- Stop or choose another option: If you have pre-existing medical conditions, take medications, or are under 18, pregnant, or nursing, do not use this supplement. Consult a physician first.
Product facts
- L-Arginine + L-Citrulline (Capsules): Take 2 capsules daily with a meal or as recommended by a physician. This ensures consistent intake of both amino acids for sustained nitric oxide support throughout your training cycle.
L-Arginine + L-Citrulline (Capsules)
