Coolssha: The first toothbrush for which I need instructions

I have a queasy feeling in my stomach. With shaky hands, I hold the "7D Premium" electric toothbrush in my right hand and the accompanying instruction manual in my left, which can't allay my fears. The manufacturer advises me to look carefully in the mirror and not at the floor when using the brush for the first time. I've never had so much respect for brushing my teeth as I do at this moment. I think of countless excuses as to why I should postpone the test. "Postponed is not cancelled", I keep repeating. I jump over my shadow and press the power button. I squint my eyes and open them again as the device starts to rattle. The sound reminds me of a nose hair trimmer. The bristles, which previously looked so scary, suddenly seem quite harmless: the rotation is more reminiscent of stroking than grinding.

Electric toothbrush

Coolssha 7D Premium

Oscillating toothbrush

3

Electric toothbrush

Coolssha 7D Premium

Oscillating toothbrush

3

Normally, I know my daily oral care routine inside out. The 7D Premium toothbrush from Coolssha is a different story. The 7D-style rotating cleaning technology makes all the difference with this model. The brush attachment looks so scary that I volunteered for this test.

It was invented by - guess who - Koreans, who have been shaking up the beauty market with K-Beauty products for some time now. It was only a matter of time before a K electric toothbrush reached the European market. Correct me if this happened before the Coolssha 7D Premium. You can find out how the principle of this electric brush works - or at least should work - in this short manufacturer video.

The technology involves a brush head based on three brushes. Two of them (the left and right) remove plaque from the back, front, left and right of the teeth and between the gaps (between the teeth themselves and the gums). At the same time, the centre brush cleans the chewing surfaces of the molars. You can also clean your tongue with the back of the brush head.

When I receive the brush, I have to smile. The simple white packaging reminds me of the packaging for Apple products.

In addition to the electric toothbrush, the scope of delivery includes a charging station (wireless charging dock), two brush attachments (medium and hard), a toothbrush holder and stickers. You can use the colourful stickers to label your brush attachment if the whole family uses the electric brush. "Really? Coolssha, you can do better than that", I think to myself. Colour rings, which are standard on electric brushes, look much better. It's a shame that I have to buy the travel case separately. It should be included in the proud price of around 200 francs.

My first impression

But back to my first toothbrushing attempt. As the rotating action is more reminiscent of stroking, I press the power button again to switch from standard to high-speed mode. The appliance does not have any more speed settings. The rotation becomes slightly stronger and is comparable to that of a conventional rotating electric toothbrush.

I clean and clean and clean. After four minutes, I realise that I've been waiting in vain for a beep or vibration. Because this seems strange to me, I look it up in the manual. It says that the blue indicator light flashes every 30 seconds. That's a joke. The indicator light is at the bottom of the handle. If I hold the brush while brushing, I have to contort myself to get a clear view of it. This is particularly the case with the bottom row of teeth. A brushing timer that makes itself known is a must for me. I don't want to have to stop the time while I'm brushing my teeth.

"Learning by doing" is the motto. While I have to concentrate on making sure my lips don't get caught between the bristles the first time, I get the hang of it the second time. I have to press the brush onto my teeth so that the centre brush touches the chewing surface of my teeth. I like the idea and the principle makes sense, but the brush attachment is far too bulky and the mess is correspondingly big. The foam quickly fills my mouth and spreads over my lips. I constantly have to switch off the brush, spit the foam into the sink and start the brush all over again. The manufacturer recommends constantly clenching your mouth and moving the brush from the molars towards the front teeth. I only manage this in stages.

One more thing about the design. The handle of this product is wider than other electric brushes. The ergonomically shaped handle becomes narrower towards the bottom and has three fine curves on the back. This makes the 7D Premium, which weighs around 135 grams, particularly comfortable to hold. The electric brush is available in silver, gold or pink. The colours are a successful alternative to the often white zero-eight-fifteen electric brushes. To charge the 7D Premium, place it on the charger, which includes a "mood accessory" in the form of an Asian soup spoon that lights up while charging.

Conclusion

I like the fact that the 7D Premium fits very well in the hand and matches the colour of my bathroom. On the other hand, I find it annoying that although the toothbrush has a quiet timer, I can't see it while I'm brushing and that I have to interrupt my brushing several times. The brush attachment is simply too big. The technology is exciting, but not fully developed because it's too awkward to use.

If you are currently looking for a new toothbrush and are open to new things, the Coolssha product is worth considering. I remain loyal to my sonic toothbrush from Waterpik. Although it can't keep up visually, it's only half the price - including the travel case. What's more, I don't have to be fully focussed while brushing my teeth and can even clean my teeth while I'm half asleep, as is the case early in the morning before work.