Last update
3/25/2026
Reviewed By
Reviewed By
Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 2 Reviews
8.5
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
L-Lysine (from 637 mg L-Lysine Hydrochloride)
500 mg
**
Top Medical Research Studies
8
Anxiety reduction observed with lysine
We investigated how L-lysine, an essential amino acid, influences anxiety and body weight. The study involved administering two doses of L-lys to rats over 20 days.
We found that while L-lys didn't affect food intake, it did lead to weight reduction and showed signs of anxiolytic effects on the first day. Notably, repeated doses increased serotonin levels in key brain areas, which may explain its calming effects.
However, the study's outcomes indicate that L-lys may not dramatically alter anxiety compared to other treatments.
We found that while L-lys didn't affect food intake, it did lead to weight reduction and showed signs of anxiolytic effects on the first day. Notably, repeated doses increased serotonin levels in key brain areas, which may explain its calming effects.
However, the study's outcomes indicate that L-lys may not dramatically alter anxiety compared to other treatments.
Read More
Most Useful Reviews
9
Herpes relief
Not only does this help with herpes outbreaks, but it also effectively manages my anxiety. It’s a fantastic supplement!
Read More
7.5
Aids weight loss
1 people found this helpful
I take L-lysine daily for various benefits, including weight management and reduced anxiety. It helps block cortisol and aids my son’s calcium absorption. It's flavourless and easy to take, making it a great bargain.
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
- All Researches
8
Anxiety reduction observed with lysine
We investigated how L-lysine, an essential amino acid, influences anxiety and body weight. The study involved administering two doses of L-lys to rats over 20 days.
We found that while L-lys didn't affect food intake, it did lead to weight reduction and showed signs of anxiolytic effects on the first day. Notably, repeated doses increased serotonin levels in key brain areas, which may explain its calming effects.
However, the study's outcomes indicate that L-lys may not dramatically alter anxiety compared to other treatments.
We found that while L-lys didn't affect food intake, it did lead to weight reduction and showed signs of anxiolytic effects on the first day. Notably, repeated doses increased serotonin levels in key brain areas, which may explain its calming effects.
However, the study's outcomes indicate that L-lys may not dramatically alter anxiety compared to other treatments.
Read More
User Reviews
USERS' SCORE
Good
Based on 2 Reviews
8.5
- All Reviews
- Positive Reviews
- Negative Reviews
9
Herpes relief
Not only does this help with herpes outbreaks, but it also effectively manages my anxiety. It’s a fantastic supplement!
Read More
7.5
Aids weight loss
1 people found this helpful
I take L-lysine daily for various benefits, including weight management and reduced anxiety. It helps block cortisol and aids my son’s calcium absorption. It's flavourless and easy to take, making it a great bargain.
Read More
Frequently Asked Questions
8
Anxiety reduction observed with lysine
We investigated how L-lysine, an essential amino acid, influences anxiety and body weight. The study involved administering two doses of L-lys to rats over 20 days.
We found that while L-lys didn't affect food intake, it did lead to weight reduction and showed signs of anxiolytic effects on the first day. Notably, repeated doses increased serotonin levels in key brain areas, which may explain its calming effects.
However, the study's outcomes indicate that L-lys may not dramatically alter anxiety compared to other treatments.
We found that while L-lys didn't affect food intake, it did lead to weight reduction and showed signs of anxiolytic effects on the first day. Notably, repeated doses increased serotonin levels in key brain areas, which may explain its calming effects.
However, the study's outcomes indicate that L-lys may not dramatically alter anxiety compared to other treatments.
References
- Jalal K, Khan F, Nawaz S, Afroz R, Khan K, et al. Anxiolytic, anti-nociceptive and body weight reducing effects of L-lysine in rats: Relationship with brain serotonin an In-Vivo and In-Silico study. Biomed Pharmacother. 2022;152:113235. 10.1016/j.biopha.2022.113235
Data last updated:
