Amino Acid
L-Valine
Also known as: Valine, Val, BCAA
Essential branched-chain amino acid involved in muscle metabolism, tissue repair, and nitrogen balance. Works synergistically with other BCAAs.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Primary uses
- Muscle recovery
- Tissue repair
- Nitrogen balance
- Energy during exercise
How it works
- Stimulates muscle protein synthesis
- Provides energy during prolonged exercise
- Maintains nitrogen balance
- Supports CNS function
Dosage
- Typical range
- 3-6 g daily
- Timing
- Pre/during/post workout
- With food
- With or without
- Duration
- Safe long-term
- Special populations
- Athletes, recovery
Forms
- Powder
- Capsule
Safety
Common side effects
- Well tolerated
Contraindications
- Maple syrup urine disease
Products containing L-Valine
Top-scoring supplements in our catalog that list L-Valine on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Established role in muscle metabolism as BCAA component
Grade B: Some human trials support key claims; further confirmation needed.
Related in Amino Acid
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.