Skin and Hair Care

Acne: Considerations for darker skin

People with darker skin face particular challenges from acne. The release of melanin from skin inflammation can cause scarring or dark spots that can last for months or longer, and this is more likely to occur in people with darker skin. Treatment can help improve or prevent these conditions.

Do hair dyes increase cancer risk?

Shinjita Das, MD

Contributor

Many studies have explored the relationship between hair dye use and risk of cancer or cancer-related death, with conflicting findings. In a recent study, researchers analyzed survey data from over 117,000 women collected over several decades regarding hair dye use and overall cancer risk.

Shingles: What triggers this painful, burning rash?

If you have chickenpox as a child, the virus stays in your body, and can emerge later in life as a painful, burning rash called shingles. It’s not fully understood what triggers a resurgence of the virus, but factors that weaken the immune system increase the risk of developing shingles, and it is more common in people over age 60.

Drugstore skincare: Science-backed anti-aging ingredients that don’t break the bank

Treating age-related skin changes does not require an investment in expensive products, or a visit to a dermatologist. Products available in drugstores with proven ingredients and without a prescription can help with various skin issues or problems.

What your skin should expect when you’re expecting

During pregnancy many women experience changes in their skin, some of which can linger for some time after giving birth. Most of these changes are not cause for concern and will improve, and in some cases there are treatments available for them.

Does diet really matter when it comes to adult acne?

Robert H. Shmerling, MD

Senior Faculty Editor, Harvard Health Publishing

Does what you eat affect whether or not you get acne? This has been debated for a long time. A survey of the dietary habits of more than 24,000 older adults suggests that people who eat a diet high in fat and sugar are more likely to develop adult acne.

Wondering about goosebumps? Of course you are

Robert H. Shmerling, MD

Senior Faculty Editor, Harvard Health Publishing

What are goosebumps? Why do we get them? Do they serve a purpose? Some of these questions can be answered, others can’t. But a recent study in mice links goosebumps to stem cells responsible for the regeneration of hair.

Can appealing to teenagers’ vanity improve sun-protective behaviors?

Shinjita Das, MD

Contributor

Most people understand the risks of sun exposure, even if they do not regularly wear sunscreen, but getting younger people to pay attention to this concern can be difficult. A study chose a novel approach to this problem by appealing to teenagers’ vanity and focus on their appearance.

Tinted sunscreens: Benefits beyond an attractive glow

Tinted sunscreens offer all the benefits of traditional sun protection products, plus they have added pigments that give them the ability to block visible light, which can also be harmful to the skin.

The doctor will “see” you now: Teledermatology in the era of COVID-19

Doctors are increasingly turning to telemedicine as a way to safely treat patients during the COVID-19 crisis. Dermatology is well-suited for telemedicine, though there are limitations due to the limits of technology, and certain conditions that must be seen and treated in person.