Anti acne efficacy is assessed using different techniques:
Antimicrobial efficacy testing is a useful step to screen the efficacy of ingredients/products in counteracting the bacteria involved in the onset/development of acne.
The inhibitory concentration of the ingredient/product on Propionibacterium acnes and Staphylococcus epidermidis growth is assessed through microbiological tests carried out according to international recognized standards. On humans, the non-comedogenic potential assessment is an essential step to ensure that the product is not cause of acneic lesions occurrence, while product suitability for acne-prone skin is assessed by the dermatologist by means of acneic lesion (both inflammatory and non-inflammatory) count.
- Suitable for acne-prone skin
- Non comedogenic
- Self-assessment (consumer test)
- Digital imaging of porphyrins