A method is provided for treating dermatological conditions by binding and blocking 5-a-dihydrotestosterone receptors comprising applying to the skin an effective amount of composition comprising:(a) from about 0.1% to about 2.0% by weight of mucopolysaccharides free of proteins and having a pH ranging from about 5 to 7.5 in aqueous solution, a rotary power between about to +15, and a sulfur content greater than 6%;(b) from about 1% to about 3% by weight of an aqueous extract of human umbilical cord free from sulfur and having a DH of from about 5 to about 7, a viscosity of 30.degree. C. of from 10 to 25 centistokes, a hyaluronic acid titre of from about 500 to about 700 mg/dl, and an ash content of less than about 0.5%;(c) from about 0.05 to about 0.08% by weight of tetrahydrofurfuryl nicotinate; and(d) pharmaceutically and cosmetically acceptable vehicles and excipients.This method is particularly useful in treating dermatological conditions such as acne, wrinkles, lipodiystrophies, dermosclorosis, androgenic alopecia, hypertrichosis, and the like.