• Anna Solana, science journalist

    Bacteria as a spray for skin hygiene

    30 Oct Bacteria as a spray for skin hygiene



    Science Daily

    Caring for the skin without washing improves its appearance. Or so claims an AOBiome study, presented in early October in Washington, that points to the beneficial effects of spraying the skin with Nitrosomonas eutropha, a bacterium that metabolizes ammonia in sweat to eliminate body odour.


    A company called AOBiome has launched a bacterial spray in the market that theoretically could save water and improve the appearance of the skin. The invention, called AO+ Refreshing Cosmetic Mist, is not exactly cheap: 99 euros for a month’s supply and 249 euros for three months’ supply. But apparently it’s worth it. In fact, its creator, David Whitlock, who says he hasn’t showered in 12 years (!!), argues fervently that Nitrosomonas may be a solution for acne and for chronic skin wounds. Read More

  • Fede Montagud, editor

    The eyes also need protection from the sun

    25 Oct The eyes also need protection from the sun



    BBC News Health

    Some sunbathers take off their sunglasses to avoid marks. Others simply forget them. But sunglasses are absolutely necessary to prevent eye damage, most especially in periods of lengthy exposure to UV rays, whether in summer or winter, in the mountains or by the sea.


    The eyes are protected from the sun by their own internal configuration and by the eyelashes and eyelids. But in extreme conditions the eyes are as vulnerable as the skin to the effects of UV rays. Studies confirm that prolonged unprotected exposure of the eyes to the sun can have dire consequences and cause various disorders ranging from simple conjunctivitis and premature cataracts to conjunctival cancer and pterygium (excessive conjunctival growth that blurs vision). Read More

  • Anna Solana, science journalist

    Why do I have open pores?

    20 Oct Why do I have open pores?



    Cosmetics & Toiletries

    Everyone has open pores, but they are more noticeable in some skins than in others. The blame may lie with genetics, as is often the case, but only partly. Temperature and relative humidity, exposure to the sun, skin type, hormonal changes and age also enlarge the pores and make the skin look rough. The question is, however, what’s the solution?


    We have about two million pores, which are absolutely necessary for the proper functioning of the skin, as they eliminate toxins, regulate temperature and hydrate the skin. But it's hard to appreciate all this when you can’t help but see them – because they are dilated or dirty from an accumulation of dead cells and other impurities, making your skin look unhealthy and aged. And this is not necessarily for lack of care. Read More

  • Anna Solana, science journalist

    Sunscreens are not enough to avoid cancer

    15 Oct Sunscreens are not enough to avoid cancer




    A few years ago the European Union banned use of the term total block" in sunscreen labels because it led to confusion. There is, in fact, no photoprotection that is 100% effective against UV radiation. A study published recently in Nature confirms that sunscreens do not protect fully against melanoma but this does not mean we should stop using them.


    The research – conducted by scientists from the Institute of Cancer Research in London and Cancer Research UK Manchester Institute – demonstrates that even a sun protection factor (SPF) of 50 allows some DNA-damaging radiation to penetrate the skin, possibly causing melanoma. This, the most aggressive form of skin cancer, affects every year about 160,000 people worldwide, according to WHO, with the number of cases in Spain increasing by 38% in the last four years. Read More