Your battery might need charging. Remember to recharge the brush regularly.

This could be an issue with the brush head. Remove the brush head reattach to make sure it’s fitted properly.

If you’re using an electric toothbrush for the first time, you may not be used to the feeling of it yet. The vibrations that help the cleaning could be making you feel this way. Give it a little time and the tingling will feel like nothing at all!

There’s probably no current flowing through. Test the socket you’re using as well as the plugs to make sure everything is secured properly.

This is an in-built feature that reminds you to switch quadrants when you brush at 30 second intervals.

There may be a problem with the battery or the adapter. Report the problem to us immediately on our contact page.

A fully charged ION-Sei brush should last you between 2 and 3 weeks if you use it twice a day.

Follow the same guidelines for replacing brushes when replacing ION-Sei brush heads. 3 months is our recommendation!

A brand-new ION-Sei Toothbrush can be a little tough to deal with. Bear with it for a small while, because repeated use will make the brush head easier to attach.

This is an indication that the barb inside the brush head has broken. Please have the brush and its head checked by a specialist dealer or contact us. Remember that when you attach and remove the brush head, you should never try to twist the brush head. Simply remove it by pulling upwards and attach by pushing it down. Twisting the brush head can damage the brush head and damage both items.

Make sure you consult with your dentist before using this product.

Hormonal imbalances in the body during pregnancy can cause sensitivity to the micro current. Please consult with your doctor and dentist before you use it.

Most people with braces are able to use this brush with no issues. However, check with your dentist to make sure they approve it.

The UV light from the ION-Sei toothbrush is not harmful for your health. ION-Sei has tested the effect of its UV light on the human body based on IEC62471, and the result is that the UV light is not harmful for human health.

The amount of ions used during every brushing session is so tiny that the bar will not get depleted.

Dried toothpaste comes off easily when wiped with a damp towel. We recommend you clean it with a wet washcloth regularly.

Using ION-Sei with just water is recommended but using toothpaste does not impact the ionic technology at all.

The UV-LED technology itself is not antibacterial, nor does it bleach the teeth.