Sea buckthorn oil is safe and millions of people have used sea buckthorn oil without an issue.
Sea buckthorn oil is rich in group B vitamins, which are nutrients for the brain and can prevent Alzheimer's disease.
Some customers reported difficulty sleeping if taking it at the bedtime. Taking sea buckthorn oil appears to make you more alert and less sleepy.
The effect is like drinking a cup coffee before bed.
If you take it in the morning, it may work well.