Home Helena Polena Off Dr. Helena Polena NAOS France Expert content +1 by 3 professionals Scientific publications 5 min Audio Improvement of quality of life in dialysis and diabetic patients by skin dryness and pruritus management with an ecobiological dermo-cosmetic product +2 by 4 professionals Scientific publications 5 min Audio Burden of Sensitive Skin (BoSS) questionnaire and current perception threshold: use as diagnostic tools for sensitive skin syndrome