Will stopping the use of a pigmentation-removing product after a few days cause any harm to the skin?

Generally, if the use of a spot-removing product is stopped after several days, it usually does not cause significant harm to the skin. However, the specific effects depend on the product's ingredients and the skin's condition. Detailed analysis is as follows:

If the product contains mild ingredients, such as vitamin C or arbutin, discontinuation after short-term use may result only in rebound pigmentation without other discomfort. If the product contains keratolytic ingredients like glycolic acid or salicylic acid, sudden discontinuation might lead to temporary dryness and sensitivity due to incomplete recovery of the skin barrier, although this typically resolves spontaneously within one to two weeks.

Be cautious of spot-removing products containing prohibited ingredients like mercury or hormones. Discontinuation of such products after short-term use might trigger rebound erythema, itching, increased pigmentation, or even hormone-dependent dermatitis, which requires timely medical attention.

Properly formulated and regulated spot-removing products carry a low risk of short-term discontinuation. However, if symptoms such as redness, swelling, or stinging occur, it is recommended to discontinue use immediately and focus on moisturizing and repairing the skin. Effective pigmentation removal requires adherence to a scientific treatment regimen, avoiding frequent product changes. Check the ingredient list and consult a dermatologist before making a selection.