Pharmaceutical and cosmetic compositions for accelerated healing of wounds and other surface damages

A method of treating a skin condition in a patient, the condition comprising chronological aging, photoaging, sunlight or UV light damage, burns, wounds, or sutures, the method comprising administering to the skin of the patient in need thereof a therapeutic amount of the pharmaceutical composition comprising a compound of formula (I):

• wherein:
• in the composition of Formula I, A is a plastoquinone of structure:
• wherein:
• Y is lower alkyl;
• m is an integer from 2 to 3;
• L is a linker group, comprising a hydrocarbon chain;
• n is the number of carbon atoms in L, which is an integer from 1 to 20;
• B is a targeting group comprising:
• Sk+Z−, wherein:
• Sk is a lipophilic cation;
• and
• Z is a pharmacologically acceptable anion;
• and isomers, and salts thereof;
• and a pharmaceutically acceptable carrier thereof;
• wherein the composition is targeted to and delivered into skin of the patient.