Amino Acid
L-Citrulline (Erectile Support)
Also known as: Citrulline, L-Cit, Citrulline malate
Amino acid that converts to arginine more efficiently, supporting nitric oxide for erections.
Daily target & upper limit
6 g / dayL-Citrulline (Erectile Support) has an established daily reference intake. See best forms, label synonyms, upper-limit warnings, and top-scoring supplements:
L-Citrulline (Erectile Support) dosage reference →Primary uses
- Erectile function
- Nitric oxide
- Blood flow
- Exercise performance
How it works
- Converts to L-Arginine in kidneys
- Sustained nitric oxide boost
- May be more effective than arginine
- Also exercise performance
Dosage
- Typical range
- 1.5-3g L-Citrulline daily for erectile (higher for exercise)
- Timing
- 1-2 hours before activity
- With food
- Either way
- Duration
- Ongoing for sustained effect
- Special populations
- Erectile support, exercise performance
Forms
- L-Citrulline
- Citrulline malate
Safety
Common side effects
- GI upset (rare)
Contraindications
- Blood pressure medications (monitor)
Products containing L-Citrulline (Erectile Support)
Top-scoring supplements in our catalog that list L-Citrulline (Erectile Support) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
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Evidence notes
Good evidence for erectile support, may be better than arginine
Grade B: Some human trials support key claims; further confirmation needed.
Related in Amino Acid
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Open the checkerMedical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.