💊 Amino acids · Moderate evidence
L-Lysine
Collagen · herpes prevention · immune · calcium absorption. People take it for:
- Herpes simplex outbreak prevention
- Collagen synthesis
- Calcium absorption improvement
- Immune function
- Anxiety reduction (some evidence)
Why it works
L-Lysine is an essential amino acid critical for collagen synthesis and immune function. Strong evidence for reducing frequency and severity of herpes simplex outbreaks by competing with arginine.
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How to take L-Lysine
Best time to take
Morning fasted or spread throughout day for herpes prevention
Suggested dose
500–3,000mg daily; 1g 3x daily for herpes prevention
Side effects and risks
- May cause nausea at high doses on empty stomach
- High doses may raise cholesterol theoretically
Related supplements
- 💊 TrimethylglycineGlycine with 3 methyl groups attached. Plays a major role in as a methyl donor to supports healthy homocysteine levels.
- 💊 L-Tyrosine (Free-Form)Amino acid for focus under stress
- 🏃 Beta-AlanineMuscle endurance · lactic acid buffer · athletic performance
- 💊 GABACalming amino acid taken for stress and sleep
- 💊 L-Lysine 500mgEssential amino acid often taken for cold sores
- 💊 N-Acetyl L-Cysteine (NAC)Cysteine amino acid and glutathione precursor
Medical disclaimer: Nothing on Stack Ritual constitutes medical advice. The information provided is for educational purposes only. Always consult your doctor or a qualified healthcare provider before beginning, changing, or stopping any vitamin, supplement, or wellness regimen.