About Dr. Marc A. Darst, MD

Dr. Darst specializes in medical and cosmetic dermatology – diagnosting and treating a wide variety of skin conditions, including acne, eczema, rosacea, psoriasis and skin cancer.

Tips & Wisdom

Doxycycline: “Low-Dose” vs. Regular. What’s the Difference?

Doxycycline and minocycline are oral antibiotics that may be used to fight infections, but also have anti-inflammatory properties. The reason I use them in the treatment of skin disorders, such as ros...

Tips for Preventing Poison Oak & Ivy

Avoidance is the best prevention against the rash we get from coming in contact with poison ivy or its cousins, poison oak, and poison sumac. We are not born with an allergy to the oil in the poison i...

Mineral-Based Sunscreen. Is It Worth the Extra Cost?

There are two types of sunscreen, “chemical” and “physical” blockers. Physical blockers are made of zinc oxide and titanium dioxide. These are small fragments of minerals that ...

Acne Treatment Options

Acne is not a condition limited to teenagers. Many adults also experience acne for a variety of reasons. At its core, acne is caused when a hair follicle or pore fills with oil produced by the sebaceo...

Rosacea Treatment Summary

Rosacea is a skin condition caused by swollen blood vessels located just under the skin’s surface, resulting in red blotches and dilated blood vessels on the central face. It may also result in ...