The sonic facial cleansing brush mainly utilizes the micro - current generated by the operation of the machine to drive the brush head to vibrate at a high speed. Its swing frequency is close to the speed of sound. This high - frequency vibration can penetrate deep into the skin's texture and pores, loosen dirt, oil, and aged cutin. At the same time, it works in conjunction with facial cleanser to help it produce high - density and uniform foam, thus achieving a more thorough cleaning effect.

It can effectively remove dirt, oil, and makeup residues in the pores, leaving the skin looking fresh and clean.

Appropriate high - frequency vibration can assist in removing the aged cutin accumulated on the skin surface, making the skin feel smoother and more delicate.

After cleaning, the pores of the skin are unobstructed, which helps the nutrients in subsequent skin - care products to be absorbed more efficiently.

Some brush heads are made of soft and elastic materials. During the cleaning process, they can also provide a massage experience for the skin, promoting facial blood circulation and giving the skin more luster.

It is suitable for a variety of skin types. For example, oily skin can use it to clean oil and blackheads; dry skin can choose a soft - bristle brush head for gentle cleaning; sensitive skin can also use a low - gear setting and a soft - bristle brush head. Generally speaking, it is suitable for people who have a need for deep cleaning, exfoliation, and those who hope to improve the absorption effect of skin - care products.

Compared with traditional manual face - washing methods, the sonic facial cleansing brush can clean pores more thoroughly and achieve a better cleaning effect.

It is usually exquisitely designed, easy to hold, and simple to operate. It also has a variety of vibration modes that can be adjusted according to personal needs.

Most products have a waterproof function and can be used safely in humid environments such as bathrooms, and can even be used during bathing.

The brush heads are made of various materials such as soft bristles and silicone, and users can choose freely according to their skin types and preferences.

For oily skin, use it 2 - 3 times a week. For dry and sensitive skin, use it 1 - 2 times a week. Avoid over - cleaning, which may damage the skin barrier.

Do not share it with others to prevent cross - infection of bacteria.

Avoid using it around the eyes and on areas of the skin with wounds or inflammation.

It is generally recommended to replace the brush head every three months to ensure the cleaning effect and hygiene.