Alpha-hydroxy acid (AHA) preparations have been popular for many years as a method for smoothing and brightening the skin. However, with their increasing popularity, concerns have been raised about their safety, particularly with regards to sun exposure. In this article, we will explore the scientific data surrounding AHA preparations and their safety, as well as the importance of using sunscreens in conjunction with these products.
What are AHA Preparations?
AHA preparations are a group of naturally occurring acids, including glycolic acid, lactic acid, and citric acid, that are commonly used in skincare products. They work by breaking down the bonds that hold dead skin cells together, allowing them to be easily removed and revealing the fresh, healthy skin beneath. AHAs are often found in chemical peels, exfoliating scrubs, and serums, and are generally considered safe for use on most skin types.
Safety of AHA Preparations
The safety of AHA preparations has been the subject of much research. Studies have consistently shown that these products are safe when used as directed and at appropriate concentrations. However, the safety of AHAs does depend on factors such as the concentration of the product, the pH level, and the duration of use. High concentrations and low pH levels can lead to skin irritation, while extended use can lead to increased sensitivity to the sun.
One study published in the Journal of the American Academy of Dermatology found that the use of AHAs in concentrations of up to 10% is safe for most individuals. The study also found that these concentrations did not cause significant skin irritation or increase sensitivity to the sun when used as directed. Another study published in the same journal found that the use of glycolic acid at concentrations of up to 30% was safe for most individuals, as long as it was used under the guidance of a dermatologist.
Sun Exposure and AHA Preparations
While AHA preparations themselves are generally safe, it is important to use them in conjunction with sun protection. AHAs can make the skin more sensitive to the sun, which can lead to sunburn and damage. According to the American Academy of Dermatology, individuals using AHAs should wear sunscreen with an SPF of at least 30 and reapply every two hours when exposed to the sun. Additionally, it is recommended to avoid prolonged sun exposure during peak hours when the sun is strongest.
Conclusion
In conclusion, AHA preparations are safe for use when used as directed and at appropriate concentrations. However, it is important to use these products in conjunction with sun protection to avoid sun damage and sensitivity. By following the recommendations of dermatologists and using sunscreen, individuals can safely enjoy the benefits of AHA preparations and achieve smoother, brighter skin.
