Last update
5/19/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Questionable
Based on 1 Research
5
USERS' SCORE
Good
Based on 5 Reviews
8.2
Supplement Facts
Serving Size: 1 Veg Capsule
Amount Per Serving
%DV
L-Carnosine (B-alanyl-L-histidine)
500 mg
*
Top Medical Research Studies
5
l-Carnosine shows potential in ADHD
This study looked into how effective l-carnosine can be when added to standard ADHD medication, methylphenidate. Over eight weeks, we monitored 56 children with ADHD, comparing those given l-carnosine to those receiving a placebo. Some positive results appeared in parent-rated attention measures, indicating that l-carnosine might offer some benefit. However, improvements were not seen in teacher assessments, suggesting limited effects overall. While the findings show promise, more research is needed to confirm these results and explore different dosages.
Read More
Most Useful Reviews
7.5
Improved morning wakefulness
8 people found this helpful
It became easier to wake up in the morning after I began taking Ajinomoto's "Every morning histidine," which contains 1650mg of the ingredient. For two years, I've struggled to get up due to my possible ADHD, often oversleeping for more than 15 hours on holidays. Although it's not a complete solution, I’ve noticed significant improvement since starting this.
Read More
9
Calmed tics
3 people found this helpful
Excellent product! It's a staple in our household. Both my son and I use carnosine for its anti-ageing properties and health benefits. We initially bought it for my son’s tics, and it has certainly helped to calm him. Additionally, L-carnosine is reputed to assist with frontal lobe function, relating to ADHD, and the quality seems consistently good.
Read More
7.5
Encouraged verbal communication
Great product! My 7-year-old child, who is on the spectrum with ADHD and apraxia, wants to talk more since using this product. I highly recommend it for those experiencing similar challenges.
Read More
Medical Researches
SCIENTIFIC SCORE
Questionable
Based on 1 Research
5
- All Researches
5
l-Carnosine shows potential in ADHD
This study looked into how effective l-carnosine can be when added to standard ADHD medication, methylphenidate. Over eight weeks, we monitored 56 children with ADHD, comparing those given l-carnosine to those receiving a placebo. Some positive results appeared in parent-rated attention measures, indicating that l-carnosine might offer some benefit. However, improvements were not seen in teacher assessments, suggesting limited effects overall. While the findings show promise, more research is needed to confirm these results and explore different dosages.
Read More
User Reviews
USERS' SCORE
Good
Based on 5 Reviews
8.2
- All Reviews
- Positive Reviews
- Negative Reviews
7.5
Improved morning wakefulness
8 people found this helpful
It became easier to wake up in the morning after I began taking Ajinomoto's "Every morning histidine," which contains 1650mg of the ingredient. For two years, I've struggled to get up due to my possible ADHD, often oversleeping for more than 15 hours on holidays. Although it's not a complete solution, I’ve noticed significant improvement since starting this.
Read More
9
Calmed tics
3 people found this helpful
Excellent product! It's a staple in our household. Both my son and I use carnosine for its anti-ageing properties and health benefits. We initially bought it for my son’s tics, and it has certainly helped to calm him. Additionally, L-carnosine is reputed to assist with frontal lobe function, relating to ADHD, and the quality seems consistently good.
Read More
7.5
Encouraged verbal communication
Great product! My 7-year-old child, who is on the spectrum with ADHD and apraxia, wants to talk more since using this product. I highly recommend it for those experiencing similar challenges.
Read More
7.5
Reduced mental fatigue
11 people found this helpful
I suffer from chronic fatigue linked to ADHD, and since I started drinking this, my head feels less tired. I find myself more alert and able to move around easily.
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6
Language skills enhanced
The child has both ADD and ADHD, with very poor language skills. After taking this for a while, I've observed an improvement in his language expression, although he has become rather irritable. When he doesn't get what he wants, he tends to get angry quickly.
Read More
Frequently Asked Questions
7.5
Improved morning wakefulness
8 people found this helpful
It became easier to wake up in the morning after I began taking Ajinomoto's "Every morning histidine," which contains 1650mg of the ingredient. For two years, I've struggled to get up due to my possible ADHD, often oversleeping for more than 15 hours on holidays. Although it's not a complete solution, I’ve noticed significant improvement since starting this.
6
Language skills enhanced
The child has both ADD and ADHD, with very poor language skills. After taking this for a while, I've observed an improvement in his language expression, although he has become rather irritable. When he doesn't get what he wants, he tends to get angry quickly.
9
Calmed tics
3 people found this helpful
Excellent product! It's a staple in our household. Both my son and I use carnosine for its anti-ageing properties and health benefits. We initially bought it for my son’s tics, and it has certainly helped to calm him. Additionally, L-carnosine is reputed to assist with frontal lobe function, relating to ADHD, and the quality seems consistently good.
7.5
Encouraged verbal communication
Great product! My 7-year-old child, who is on the spectrum with ADHD and apraxia, wants to talk more since using this product. I highly recommend it for those experiencing similar challenges.
References
- Ghajar A, Aghajan-Nashtaei F, Afarideh M, Mohammadi MR, Akhondzadeh S. l-Carnosine as Adjunctive Therapy in Children and Adolescents with Attention-Deficit/Hyperactivity Disorder: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial. J Child Adolesc Psychopharmacol. 2018;28:331. 10.1089/cap.2017.0157
