The sensation of heat, redness and “active pinching” that can be felt during application is subjective and depends on the type of skin. However, it is normal for the reactivation of the skin microcirculation in the area where the product is applied to generate similar reactions. We also remind you that in the presence of particularly sensitive and reactive skin, GUAM Seaweed Mud Special Sensitive Skin is recommended, which have been specially formulated, or GUAM Dren Plus seaweed mud that does not have a heating effect. The effectiveness of the product is independent of the sensation of tingling and / or heat which is completely subjective and can be felt or not depending on the sensitivity of the skin.