At-home beauty devices

They are electronic gadgets designed to help with skin or scalp care at home. Types include LED masks, vibrating cleansing devices, microcurrent or radiofrequency devices and cooling massagers. Each works differently and has its own instructions, so read the manual carefully and keep your expectations realistic.

Strong interest in skincare, combined with a growing desire to care for skin conveniently and regularly at home, seems to have driven the trend. Celebrity advertising and social media reviews also boosted attention. However, results shown in ads will not look the same for everyone.

It is a mask-shaped device worn on the face that emits light of specific colors. Light types and session times vary, so follow the manual. Claims a product can make depend on how it is classified and approved, so be cautious of ads promising to treat conditions, and follow any eye-protection guidance.

Devices intended to diagnose or treat disease must be approved as medical devices, and products without that approval may not claim medical effects. If you buy in Korea, check the certification and approval information shown on the product. Regulations can change, so refer to official guidance for details.

Radiofrequency devices are described as gently warming the skin, while microcurrent devices pass a very weak electrical current across it. How they feel and what they do varies by person and product, and you should not expect clinic-level results. Always read the list of contraindications before use.

It depends on the product's guidance, but if your skin is sensitive, using it less often is the safer choice. Pressing too hard or using it too long can cause redness. Dry the brush head thoroughly after each use and replace it as recommended.

Stick to the time and frequency in the manual, and do not use it more often hoping for faster results. Start at the lowest setting, and avoid areas with cuts or inflammation. If you feel stinging or burning, stop immediately.

Many products carry warnings against use during pregnancy, by people with implanted electronic medical devices such as pacemakers, or by people with skin conditions. If any of these apply, or you are unsure, talk to a doctor before using one. Always read the contraindications in the manual.

Home devices are usually designed with lower power and simpler functions so they can be used safely without supervision, so expecting clinic-level results is unrealistic. If you have significant skin concerns, consult a dermatologist about your options instead of relying on a device alone.

Korean household power uses 220V, so voltage and plug shape may differ in your country. Check the input voltage printed on the charger, and if it does not match, you may need a converter. Also keep in mind that warranties and repairs may be hard to access abroad.

Some devices recommend a gel to reduce friction between the device and skin, or to help conduct current. In those cases, using a product that fits the manual's guidance is safest. Whether non-branded alternatives work is something to confirm with the manufacturer's instructions.

Wipe the parts that touch your skin after every use, following the manual, and let them dry completely before storing. Some devices must not get wet, so check whether yours is waterproof. Sharing a device with others is best avoided for hygiene reasons.

Be careful with phrases promising that wrinkles or sagging will disappear quickly, or that you will never need a procedure. If a product claims to treat a condition, check whether it is approved as a medical device. Before-and-after photos can be affected by lighting and editing.

Sensitive skin can react easily to heat, vibration or current, so start at the lowest setting for a short time. Stop right away if your skin turns red or feels hot. If you have a skin condition or are under treatment, consult a dermatologist before trying a device.

A common method is applying oil or cream for slip, then gliding the tool lightly from the center of the face outward. Pressing too hard can cause bruising or redness. Wash and dry the tool after each use, and avoid areas with active breakouts.

Scalp devices make different claims, and promoting a hair-loss treatment effect requires the relevant approval. If your hair shedding has suddenly increased or worries you, consult a dermatologist to find the cause before turning to a device. Avoid using any scalp device on broken or inflamed skin.

The skin around the eyes is thin and delicate, so strong heat or vibration can easily cause redness. Keep the device away from the eyeball itself, and follow eye-protection instructions for light-emitting devices. If your eyes hurt or your vision changes, stop and see an eye doctor.

A used device may be out of warranty, and its battery condition can be hard to judge. Hygiene of the parts that touch skin is also difficult to verify. If you do buy one, check that it is genuine and the charger is in good shape, and see whether contact parts can be replaced or sanitized.

Many people roll or press a chilled tool lightly on the face for a refreshing feeling, especially on puffy mornings. Holding it in one spot too long can irritate the skin. If you plan to put it in the freezer, check that the manual says this is allowed.

Stop using it immediately and gently cool the skin. If you notice blisters, burns or redness that does not go away, see a dermatologist. Writing down which device, setting and time you used can be helpful information to share at the appointment.