2.1.6. Interventions.
nonalcoholic
The participants will be instructed not to use any cream with an active element for 2 months. All of them will receive a bottle of neutral hydrating cream for daily use in the morning and before bed. The cream formulation is composed of carbomer, cetearyl alcohol, glyceryl stearate/polyethylene glycol-100 stearate, helianthus annuus seed oil, butylated hydroxytoluene, disodium ethylenediaminetetraacetic acid, glycerin, propylene glycol, aminomethyl propanol, phenoxyethanol, ethylparaben, butylparaben, propylparaben, isobutylparaben, and aqua.Each participant will have their face cleaned with a neutral nonalcoholic wet wipe and their eyes blindfolded and protected with goggles that allow the rest of the face to be illuminated with the red LED or with simulated light without the participant knowing which treatment was applied. A transparent plastic film will be used to cover the face before placing the LED mask, material supplied by the same manufacturer of the mask.The equipment used will be LED masks (Cicatrillux Bio next from Cosmedical, Mauá, São Paulo—SP, Brazil) (Fig. LED device dosimetric parameters. Pg 10.LED = light emitting diode.LED facial mask, Cicatrillux Bionext (Cosmedical, Mauá, São Paulo—Brazil). Pg 9. LED = light emitting diode.