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
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
30
The emollient cream contains Acetyl Hexapeptide-37 as the active ingredient and is applied topically to designated skin areas on the forearm. Skin barrier disruption is induced prior to application using the tape-stripping method. Procedure will be performed on healthy, intact skin according to randomization protocol
The emollient cream without the peptide is applied topically to designated skin areas on the forearm. Skin barrier disruption is induced prior to application using the tape-stripping method. Procedure will be performed on healthy, intact skin according to randomization protocol
University of Split School of Medicine
Split, Croatia
RECRUITINGChange in Transepidermal Water Loss (TEWL)
Skin barrier function will be assessed by measuring transepidermal water loss using a Tewameter TM 300 probe. Values will be expressed in g/m²/h
Time frame: Assessments will be performed on 1st, 2nd, 3rd, 4th, 8th and 9th day of the trial (baseline measurements and change from baseline assessment).
Change in Skin Hydration
Hydration of the stratum corneum will be assessed using a Corneometer CM 825 probe.
Time frame: Assessments will be performed on 1st, 2nd, 3rd, 4th, 8th and 9th day of the trial (baseline measurements and change from baseline assessment).
Change in Skin Erythema
Skin erythema will be assessed using a Mexameter MX 18 probe.
Time frame: Assessments will be performed on 1st, 2nd, 3rd, 4th, 8th and 9th day of the trial (baseline measurements and change from baseline assessment).
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