Interventional, Monocentric, Double-blind Randomized Category 2b Study Evaluating the Evaluation of the Tolerance of Cyto-selective Difluoroethane-based Cryotherapy in the Treatment of Brown Spots (Solar and Senile Lentigines, Post -Inflammatory Hyperpigmentation (Pih)) on the Face

Exclusion criteria

• . Female participant who is pregnant, parturient or breast feeding;
• . Female participant of childbearing potential having a positive urinary pregnancy test at Day 0;
• . Having performed cosmetic treatments (e.g., exfoliants, scrubs or self-tanners, facial UV) in the month before the start of the study on the face (see restrictions paragraph);
• . Having performed cosmetic or aesthetic treatments by a dermatologist (e.g., laser, IPL, peeling, creams, cryotherapy) in the last 6 months on the face;
• . Receiving systemic or local treatment (e.g., dermocorticoids, corticosteroids, diuretics) likely to interfere with the evaluation of the parameter studied;
• . Person affected by dermatosis, autoimmune disease, systemic, chronic or acute disease, or any other pathology that may interfere with treatment or influence the results of the study (e.g., people with diabetes or circulatory problems, allergic to cold, Raynaud's syndrome);
• . Person with clinically significant skin condition on the tested area (e.g., active eczema, psoriasis, rosacea, scleroderma, acne, dermatitis) or presence on the tested area of skin lesions, scars, tattoos;
• . Concomitant participation in other clinical trials/investigations or participation in the evaluation of any IMD/IP during 2 months before this study;