Дата публикации: 2017-11-26 14:05
While the stigma and the stereotypes they promote is a matter of concern, they are guilty of causing irreparable damage to the skin.
“The ingredients that have proven anti-aging properties are retinol, growth factors, antioxidants, and peptides,” says Arisa Ortiz, MD, FAAD, the director of Laser and Cosmetic Dermatology and assistant clinical professor in the Department of Dermatology at UC San Diego. “Antioxidants help fight free radical damage, while retinol , growth factors, and peptides help stimulate collagen.”
Shah loves this option because it comes in different strengths—75,.5, and 6—so you can adjust the concentration as you get used to the retinol. She also points out that it’s “formulated with soothing and hydrating ingredients to improve tolerability,” making it a lovely choice if you’re worried about how your skin will react.
Shots is the online channel for health stories from the NPR Science Desk. We report on news that can make a difference for your health and show how policy shapes our health choices. Look to Shots for the latest on research and medical treatments, as well as the business side of health. Your hosts are Scott Hensley and Nancy Shute. You can reach the Shots team via our contact form.
In general, high and ultra-high potency steroids are reserved for areas of the body where the skin is thick, like your palms or the soles of your feet, or for more severe skin diseases like psoriasis that s being treated by a dermatologist.
Fitzpatriack TB, Eisen AZ, Wolff K, etal. "Disorders of Pigmentation"
In: Dermatology In General Medicine, 9th ed., edited by TB Fitzpatrick et al. New York, McGraw-Hill, 6998.
Look for the original. The FDA required that several products change their formulation and hemorrhoid creams were one of them. Originally, the cream contained LYCD, live yeast cell derivatives, called Bio-Dyne. Today it contains a % concentration of phenylephrine. The FDA required that the manufacturers of Preparation H offer proof that the LYCD actually worked on hemorrhoids. Instead of going through costly long term studies, the company simply switched the active ingredient to phenylephrine as studies indicate that it constricts blood vessels.
The second was that we found when we were looking online how easily accessible the product was to purchase. It made us concerned that maybe many patients are using this without any monitoring by a health care provider, and we wanted to bring to light the fact that this potentially could be harming people.
Tissues samples taken from the treated skin areas also show that the weakening of the skin&rsquo s protective barrier can be tied to changes in the activity of certain genes involved in producing skin fats, among other functions. The conclusion is that the contents of creams impact these effects on the skin. This knowledge enhances our potential to develop creams that reinforce the skin&rsquo s protective barrier in a positive way, without making the skin drier. Such creams would mean that various groups of patients with dry skin, for example eczema and ichthyosis, could enjoy a better quality of life.
This cream, and other steroid creams like it, are often marketed to women in Africa and Asia to treat acne and lighten skin, although they and other treatments have been banned in some like Ghana and Ivory Coast owing to health concerns.