CSI Salud Integral
Cosmelan – the treatment to remove stains
Rejuvenation|May 21, 2026

Cosmelan – the treatment to remove stains

Skin blemishes , declared enemies of aesthetics and quality of life, are a growing global problem that most frequently affects adults over 50. These pigmentary alterations appear as patches due to factors associated with age, sun exposure, hormonal or genetic influences, or skin infections. Scientifically, such hyperpigmentation stems from an uncontrolled overproduction of melanin, whose primary function is protection against the sun’s rays. In the search for solutions to eliminate or conceal these blemishes, aesthetic science has developed a long list of techniques and products, including lasers, pulsed light, certain exfoliating and depigmenting chemical compounds, and cosmetics. However, beyond the results obtained by traditional treatments, a method has been needed that provides a dual mechanism to eliminate hyperpigmentation and control the overproduction of melanin. Cosmelan is a complete treatment consisting of a mask applied in the clinic, a maintenance cream that prevents the reappearance of dark spots, and a moisturizer that provides the softness, tone, elasticity, and radiance characteristic of healthy skin. Cosmelan is fast and effective, and the simple treatment consists of two steps: Step 1: During a single session in the clinic, we apply the Cosmelan 1 mask and, depending on the phototype and sensitivity of the skin being treated, leave it on for eight to twelve hours. The patient removes the mask at home. Step 2: The patient continues with a follow-up phase at home, which consists of applying the Cosmelan 2 maintenance cream and Moisturising Sun Protection SPF 50+ sunscreen. The process begins 48 hours after applying the mask and continues for the following seven months to achieve optimal results and prevent the reappearance of dark spots. Patients generally begin to notice a significant improvement in the second week of treatment. Initially, you may experience mild redness, hardening, and peeling of the skin, but a smooth, radiant, and renewed layer of skin will then emerge. Cosmelan is a method developed by the globally recognized Mesoestetic laboratory, available in Costa Rica at their Comprehensive Health Clinic (CSI) . Contact us ! We are located 200 meters north and 25 meters east of Walmart in San Francisco, Heredia.