Post-inflammatory hyperpigmentation

Following a skin trauma such as an acne outbreak, the skin heals. This natural and beneficial process can, however, result in various types of more or less permanent marks. Tea tree essential oil is a natural ingredient recognised for its effectiveness in combating acne outbreaks. But what about its action on the marks that remain after these skin eruptions?

These two occurrences can be attributed to acne breakouts but also to insect bites or even to various skin traumas. But how can we differentiate them? Let's focus.

Some skin traumas require an anti-inflammatory response that leaves behind brown marks known as post-inflammatory hyperpigmentation spots. What biological mechanism is behind this? Do these brown spots only appear after acne breakouts or are there other causes? Let's delve into this.

Acne blemishes and other skin lesions can sometimes leave scars behind. While some are barely noticeable, others are quite prominent. In the case of hyperpigmented scars, certain daily actions can be adopted to reduce their appearance.

PHAs (Polyhydroxy Acids) are part of the hydroxy acid family along with AHAs (Alpha Hydroxy Acids) and BHAs (Beta Hydroxy Acids). Considered as the new generation of AHAs, they are renowned for their keratolytic effects, meaning they remove dead cells (desquamation process), which increases cell renewal and restores radiance to the skin. How do they act on acne marks?