Increased Skin Irritation by Hydroquinone and Rsetinoic Acid Used in Combination

نویسندگان

  • Gwang Hoon Kim
  • Kyung Ah Cheong
  • Ai-Young Lee
چکیده

Background Hydroquinone (HQ) is frequently combined with retinoic acid (RA) to enhance lightening efficacy, which may also affect skin irritancy. Although skin irritation leads to postinflammatory hyperpigmentation, little research has been performed to compare skin irritancy between each component and the combination. Objective This study was done to examine whether HQ-RA combination increased skin irritation induced by HQ or RA alone. Methods Patch testing was performed using maximum therapeutic and higher concentrations of HQ and RA in 10 volunteers, and then, it was performed using their popular therapeutic concentrations and combination in the other 20 volunteers. In vitro irritation was also assessed in primary cultured normal human keratinocytes treated with 80% and 50% cell survival doses of HQ, 80% cell survival dose of RA, and their combination. Results The combination in patch testing induced stronger erythema than the corresponding concentrations of HQ and RA, which was remarkable with use of combination of higher concentrations. In cultured keratinocytes, the RA combination significantly decreased cell viability, but increased cytotoxicity and extracellular interleukin 1 alpha release with corresponding doses of HQ. Conclusion The results of patch tests and in vitro irritation assessment tests suggested that HQ and RA increased skin irritation when used in combination.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evaluation of Licorice efficacy on melasma

Treatment of melasma has remained a hottopic in dermatology because of its resistance totherapy and high recurrence rate. For many yearshydroquinone was the foundation of melasmatreatment, but its use has been limited during theseyears due to a number of adverse events, suchas skin irritation, hyper and hypo pigmentation,nail discoloration, conjunctival melanosis andochronosis. Furthermore hydr...

متن کامل

Topical agents used in the management of hyperpigmentation.

Disorders of hyperpigmentation are difficult to treat, particularly in dark-skinned individuals. The goal is to reduce the hyperpigmentation without causing undesirable hypopigmentation or irritation in the surrounding normally pigmented skin. The psychosocial impact caused by these disorders must be considered. Although there are many effective therapeutic modalities available, there are poten...

متن کامل

Efficacy and safety of azelaic acid 20% plus hydroquinone 5% in the management of melasma

Background: Melasma is a brown or grayish brown symmetrical facial hyperpigmentation.A number of medicamens can be used for the treatment of this condition. For better results in treating melasma, combination therapy is preferred. The aim of this study was to determine the clinical efficacy and adverse effects of azelaic acid 20% plus hydroquinone 5% versus hydroquinone 5% alone in the manageme...

متن کامل

How to obtain skin whitening in a safe and effective way?

Melanin the natural color in our skin is synthesized by melanocytes. The distribution pattern in the surrounding keratinocytes and the nature of the formed melanin determine the actual color of our skin. Melanin forms through a series of oxidative reactions involving the amino acid tyrosine in the presence of the enzyme tyrosinase. Skin whitening agents often inhibit the activity of tyrosinase,...

متن کامل

Postinflammatory hyperpigmentation: a review of the epidemiology, clinical features, and treatment options in skin of color.

Postinflammatory hyperpigmentation is a common sequelae of inflammatory dermatoses that tends to affect darker skinned patients with greater frequency and severity. Epidemiological studies show that dyschromias, including postinflammatory hyperpigmentation, are among the most common reasons darker racial/ethnic groups seek the care of a dermatologist. The treatment of postinflammatory hyperpigm...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره 29  شماره 

صفحات  -

تاریخ انتشار 2017