• Rosa Taberner, dermatologist

    What are warts and what can be done about them?

    18 Jul What are warts and what can be done about them?

     

    Sources:

    British Medical Journal

    One of the most frequent medical consultations regarding the skin is viral warts. Warts are, in fact, skin infections caused by different kinds of human papillomavirus. They are not serious, but if they persist or represent an aesthetic problem, they should be removed.

     

    The first problem posed by warts is the actual term itself. For the dermatologist, it defines an infection of the skin by human papillomavirus (HPV). But it is common to use the term to designate any lumpy skin lesion, like moles, fibroids, seborrheic keratosis and even malignancies. It may seem unimportant, but this confusion potentially leads to hazardous situations. A patient may ask a pharmacist for a treatment for warts when, in fact, they have a different complaint. Read More

  • Fede Montagud, editor

    Sunscreen against wrinkles

    15 Jul Sunscreen against wrinkles

     

    Sources:

    Annals of Internal Medicine

    Summer is here and many people are planning to buy the traditional sunscreen to take to the beach. We all know that this is how to protect our skin from photoageing and how to minimize the risk of serious related disorders. A new Australian study confirms that people who use sunscreen have fewer wrinkles.

     

    Some people – although not many – use a sunscreen (or a cosmetic containing sunscreen) daily on parts of the body exposed to the negative effects of sunlight on the skin. Others do not use sunscreen, or only do so occasionally. A group of researchers has finally confirmed what dermatologists have long known: the sun causes wrinkles and dry skin. The study, which included 900 volunteers aged between 25 and 55, was conducted over four and a half years in Australia, a country with a mainly white population that receives a great deal of sunshine. Read More

  • Josep Orellana, science journalist

    The fact that a cosmetic is natural doesn’t mean it’s safe!

    8 Jul The fact that a cosmetic is natural doesn't mean it's safe!

     

    Sources:

    Food and Chemical Toxicology

    The use of "natural" skin care products has grown exponentially in recent years. The market offers cosmetics, creams, lotions, fragrances and numerous other products labelled as "natural". Bamboo, lavender, fruits and essential oils are often the ingredients in such cosmetics. But are they effective in keeping our skin healthy? Are they safe?

     

    Interest in what is natural and sustainable has led to the increased availability of “natural” products in street markets, supermarkets and, most especially, online. Thousands of websites sell natural cosmetics, promising all kinds of remedies and treatments for all skin types and conditions. The countries with the greatest demand for such products are the USA and the EU. It is estimated that in 2015 in the USA alone this sector will move about 19,000 million dollars. Also anticipated is a large increase in sales in the Asia and Pacific regions, due to the growing concern for personal care in the emerging economies. Read More

  • Fede Montagud, editor

    Liposomes are not absorbed by the skin

    3 Jul Liposomes are not absorbed by the skin

     

    Sources:

    Science Nordic

    Contrary to what was believed until now, the liposomes contained in skin care creams do not easily penetrate the skin. As a result, their function as active transporters of beneficial substances beyond the epidermis is being questioned. At least this is what a new scientific study reports.

     

    Coming as a surprise for liposome-based cream manufacturers is the conclusion of a study, by the University of Southern Denmark and published in the Journal of Investigative Dermatology, that the liposomes only penetrate the epidermis very superficially and so are not properly absorbed by the skin. In other words, the property attributed by science to the liposomes — that of being an optimal transporter of “encapsulated” active ingredients to the deeper layers of the skin — are not so obvious. In fact, the liposomes break into pieces almost as soon as they make contact with the epidermis. The extra cost of the liposome-based products can probably be no longer justified. The authors of the study do acknowledge that certain active ingredients in these cosmetics may be able to reach deeper layers — but not via the liposomes, they say.

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