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[HEALTH] · Brazil · 5 sources

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Dermatologists explain the efficacy of acne patches

Dermatologists explain that the effectiveness of acne patches depends heavily on the type and stage of the skin lesion. Hydrocolloid patches are most effective when a pimple has developed a whitehead (pustule), as they can actively absorb pus and exudate, which helps reduce swelling, redness, and volume.

These patches also serve as a protective dressing for broken lesions, maintaining moisture, protecting against dirt and UV radiation, and preventing manual manipulation that could lead to secondary infections or scarring. However, they offer limited benefits for early-stage inflammatory papules without a whitehead, and they are ineffective against deep cysts, nodules, or comedones (blackheads and whiteheads).

Some specialized patches contain active ingredients like salicylic acid, niacinamide, or dissolving microneedles. While these may offer complementary chemical action, medical experts note that scientific evidence regarding the additional benefits of these specific substances remains limited.

Entities

Barbara Miguel · Einstein Hospital Israelita · Glauce Eiko · Sociedade Brasileira de Dermatologia