Rejuran Healer is a procedure that has no side effects and is a safe ingredient used in various major surgeries as a tissue regeneration activating substance with proven stability. Therefore, it is possible to treat skin that is damaged because laser management is impossible, such as thin and sensitive skin, and skin with severe seborrheic dermatitis. It is possible to treat skin that is imbalanced and cannot receive laser treatments. Since it is a procedure that involves injections placed all over the face, redness, bruising and temporary swelling may occur for about 1 week after the procedure. You may feel dryness for about 1-2 weeks after the procedure which is normal because it is the natural phenomenon in which collagen is activated in the dermis of the skin to balance damaged skin, so please make sure to moisturize adequately.