






🌙 Sleep smarter, not longer — wake up winning!
NeuroScience Calm Sleep Aids (Kavinace OS) is a professional-grade, neuro-immune support supplement combining 5mg melatonin, L-Theanine, Zinc, and antioxidants to promote faster sleep onset and improved sleep quality. Clinically tested and trusted by healthcare professionals, this USA-made formula helps break the sleeplessness-immune cycle for adults seeking quick, effective relief from restless nights.











| ASIN | B07YQC4GD1 |
| Best Sellers Rank | #66,635 in Health & Household ( See Top 100 in Health & Household ) #651 in Herbal & Nutritional Sleep Supplements |
| Customer Reviews | 4.4 4.4 out of 5 stars (451) |
| Date First Available | June 13, 2019 |
| Item model number | mhada-172 |
| Manufacturer | NeuroScience |
| Package Dimensions | 4.21 x 1.81 x 1.73 inches; 2.08 ounces |
N**S
Worked the first night!
Finally felt rested in the morning! Got rid of some of the brain fog. Definitely recommend!
L**.
sleep aid
This has helped me sleep consistently
D**A
effectiveness
This is a great product if you'd like a natural way to fall asleep.
S**W
Take one about an hour before bedtime.
This supplement has helped me get a good night’s sleep for more than five years.
M**R
Helps with anxiety during the day and not just for sleep
I actually use this to help with anxiety. My job gets really stressful and this supplement really helps to calm me down and focus on one thing at a time. It actually doesn’t make me sleepy, just calm. I struggle with chronic fatigue so it’s weird that a supplement meant for sleep would help me stay awake and focused during the day, but it really does. If I take it before bed, I do fall asleep faster because my mind isn’t racing. It has never made me feel drowsy or foggy when I wake up. So it’s helpful during the day and/or before bed.
J**R
Restful sleep
Love the Kavinace. It’s a perfect blend of l’theanine, selenium and melatonin which delivers restful sleep without a groggy morning.
V**E
It’s not the PM
I knew this product was different than the original kavinace pm when I ordered it but wanted to try it just in case it had similar sleep effects. Unfortunately it did not put me to sleep or help make me tired. Super bummed. I gave 3 stars because I have not used it long enough to rate it properly. I just know it’s not putting me to sleep.
M**A
Amazing for relaxation!
It takes the edge off without making me feel drowsy. Perfect for stressful days at work.
Trustpilot
1 month ago
3 weeks ago