The Science Behind Lip Hyperpigmentation: Causes and Correction
Understanding Lip Hyperpigmentation: Causes and Correction
Lip hyperpigmentation refers to the darkening of the lips due to increased melanin production or external factors.
Common causes include:
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Sun exposure without UV protection
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Smoking, causing oxidative stress and melanocyte stimulation
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Hormonal fluctuations (e.g., pregnancy, contraceptives)
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Post-inflammatory responses following dryness or injury
The lips’ thin structure and lack of melanin regulation mechanisms compared to facial skin make them highly vulnerable.
Corrective Strategies:
Addressing hyperpigmentation requires a targeted, non-invasive approach:
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Kojic Acid: Inhibits tyrosinase activity to reduce melanin synthesis.
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Vitamin C (Ascorbic Acid): Neutralises oxidative stress and supports pigment lightening.
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Hydration and Barrier Support: Essential for protecting against further darkening and irritation.
Tenol™ Lip Remedy formulations incorporate clinically validated concentrations of these actives, designed for daily use with minimal irritation risk.
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