Clinical Research Directory

Helichrysum Italicum Extract in Irritant Contact Dermatitis

The goal of this clinical trial is to evaluate the efficacy and safety of a topical cream containing Immortelle (Helichrysum italicum) extract in promoting skin barrier recovery and reducing signs of irritant contact dermatitis in healthy adult participants. The main questions it aims to answer are: * Does topical application of Helichrysum italicum extract improve skin barrier recovery following experimentally induced irritant contact dermatitis? * Does the cream containing Helichrysum italicum extract reduce transepidermal water loss and erythema, and improve skin hydration compared to a standard moisturizing cream? * Is the topical application of Helichrysum italicum extract safe and well tolerated? Researchers will compare skin sites treated with a cream containing Helichrysum italicum extract, placebo-treated skin sites, and untreated skin sites to determine whether the addition of the extract provides additional benefits in skin barrier recovery. Participants will: * Undergo induction of irritant contact dermatitis using sodium lauryl sulfate (SLS) under occlusion. * Apply a cream containing Helichrysum italicum extract to one designated skin site and a placebo cream to another designated skin site twice daily throughout the study period. * Have an additional SLS-treated skin site left untreated to assess natural skin barrier recovery. * Apply the cream containing Helichrysum italicum extract to a separate area of healthy, intact skin. * Attend daily study visits for non-invasive assessments of skin barrier function, including transepidermal water loss, skin hydration, and erythema measurements.

Evaluation of a Peptide Cream on the Forearm Skin Recovery of Healthy Volunteers

The goal of this clinical trial is to evaluate the efficacy of a topical peptide-based formulation containing Acetyl Hexapeptide-37 in promoting skin barrier recovery after controlled disruption in healthy adult participants. The main questions it aims to answer are: * Does the peptide cream speed up the recovery of the skin barrier after it has been slightly damaged with tape-stripping method? * How does the peptide cream compare to a placebo (a cream with no active ingredient) in improving skin hydration and reducing redness? Researchers will compare the peptide cream to a placebo to assess its effects on skin barrier recovery Participants will: * Undergo controlled disruption of the skin barrier on the volar forearm using the tape-stripping method. * One forearm will receive the peptide-based cream containing Acetyl Hexapeptide-37, while the other (contralateral) forearm will receive a placebo formulation. * Attend scheduled visits for non-invasive assessments of skin barrier function, including transepidermal water loss, skin hydration, and erythema