Hydroquinone is not advised on the lips because the skin there is very thin and sensitive. Prolonged or repeated use can cause irritation, darkening or damage.
Since you have already used it for 3 weeks and stopped for 25 days, do not restart it on the lips. Instead, treatment should focus on identifying the cause of lip pigmentation and using safer alternatives. I recommend an in-person dermatology evaluation before any further treatment.
Answered2025-12-25 04:29:58
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