Homocysteic Acid Biostimulator for Photoaged Facial Skin
22 juillet 2026 mis à jour par: Medical University of Silesia
Instrumental Assessment of a Homocysteic Acid-containing Chemical Skin Biostimulator in the Management of Photoaged Mature Skin
This study evaluated whether a chemical skin biostimulator containing ammonium trichloroacetate, homocysteic acid, phytic acid and citric acid can improve signs of photoaged skin in women with mature skin.
Twenty-five women received four treatment sessions two weeks apart, followed by a home-care skincare regimen.
Skin firmness, wrinkles, skin texture, hydration, sebum production and, in participants with hyperpigmentation, skin tone uniformity were measured before treatment and at 2 and 12 weeks after the treatment series to determine whether the biostimulator produces lasting improvement in photoaged skin without the downtime associated with traditional chemical peels.
Aperçu de l'étude
Statut
Complété
Les conditions
Intervention / Traitement
Description détaillée
This was a single-arm, prospective, open-label study conducted at a single academic centre to assess the clinical and instrumental effects of a chemical skin biostimulator (PRX plus, WiQO, Trieste, Italy) on facial photoaging.
The intervention combines ammonium trichloroacetate (ATCA), a controlled-penetration TCA derivative intended to stimulate dermal fibroblast activity and collagen remodelling, with homocysteic acid (HoA), a novel antioxidant and NMDA-receptor-modulating molecule proposed to influence keratinocyte differentiation, epidermal barrier function and melanocyte activity, together with low concentrations of phytic and citric acids providing mild keratolytic and antioxidant effects.
Treatment consisted of a standardised four-session protocol (three product layers per session) applied to defined facial regions of interest, combined with a daytime regenerating cream, a nighttime glycolic-acid-containing fluid, and, in participants with hyperpigmentation, a twice-daily lightening serum.
Outcomes were assessed instrumentally using Cutometer (skin viscoelasticity), Antera 3D (wrinkle volume and surface texture), corneometry and sebumetry (hydration and sebum), and grey-level co-occurrence matrix (GLCM) analysis of standardised cross-polarised photographs (skin tone homogeneity in the hyperpigmented subgroup), at baseline, 2 weeks after the final session, and 12 weeks after completion of the treatment series, to characterise both the immediate and sustained effects of the intervention.
Type d'étude
Interventionnel
Inscription (Réel)
25
Phase
- N'est pas applicable
Contacts et emplacements
Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.
Lieux d'étude
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Sosnowiec, Pologne
- Department of Practical Cosmetology and Skin Diagnostics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice
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Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Non
La description
Inclusion Criteria:
- Female, Fitzpatrick skin phototype II
- Age 39-69 years
- Clinical signs of facial photoaging
- Some participants had hyperpigmentation (melasma or post-inflammatory hyperpigmentation)
Exclusion Criteria:
- Pregnancy or breastfeeding
- Ongoing hormone therapy
- Systemic corticosteroid use within 3 months prior to inclusion
- Topical retinoid use within 1 month, or oral retinoid use within 6 months, prior to treatment
- Chemical peel procedures within 1 month prior to treatment
- Use of arbutin and/or hydroquinone within 3 months prior to treatment
- Laser-based treatments within 3 months prior to treatment
- Active inflammatory dermatoses
- Autoimmune diseases
- Renal impairment
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Expérimental: Chemical skin biostimulator (ATCA/HoA) plus home-care regimen
Women with clinical signs of facial photoaging received four sessions, at 14-day intervals, of a topical chemical skin biostimulator containing ammonium trichloroacetate (ATCA), homocysteic acid (HoA), phytic acid and citric acid (PRX plus, WiQO), followed by a standardised home-care regimen consisting of a regenerating cream (morning), a glycolic-acid-containing fluid (evening), and, in participants with hyperpigmentation, a lightening serum applied twice daily to affected areas.
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A four-session chemical skin biostimulation procedure using a topical formulation containing ammonium trichloroacetate (ATCA), homocysteic acid (HoA), phytic acid and citric acid (PRX plus, WiQO, Trieste, Italy).
At each session, three product layers were applied to predefined facial areas (forehead, nose, cheeks, chin, upper lip) with massage until absorption, followed by cold-water rinse.
Sessions were repeated at 14-day intervals.
Participants additionally followed a standardised home-care regimen: a regenerating shea-butter cream each morning, a glycolic-acid-containing fluid each evening, and, for participants with hyperpigmentation, a lightening serum applied twice daily to affected areas, together with daily broad-spectrum sunscreen (SPF 50+).
Autres noms:
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
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Change From Baseline in Skin Viscoelasticity (Cutometer R2, R5, R7)
Délai: Baseline, 2 weeks, and 12 weeks after the treatment series
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Skin viscoelasticity assessed by Cutometer, reported as gross elasticity (R2), net elasticity (R5) and biological elasticity (R7); each is a dimensionless ratio ranging from 0 to 1, with higher values indicating greater skin elasticity.
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Baseline, 2 weeks, and 12 weeks after the treatment series
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Change From Baseline in Wrinkle Volume (Antera 3D)
Délai: Baseline, 2 weeks, and 12 weeks after the treatment series
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Wrinkle volume at the nasolabial folds, glabellar lines, forehead lines, and crow's feet, measured in mm³ by Antera 3D three-dimensional imaging.
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Baseline, 2 weeks, and 12 weeks after the treatment series
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Change From Baseline in Skin Texture Score (Antera 3D)
Délai: Baseline, 2 weeks, and 12 weeks after the treatment series
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A proprietary continuous index from the Antera 3D imaging software (Miravex) reflecting skin surface irregularity, with no manufacturer-published fixed range; observed values in this study ranged from approximately 20 to 55, with higher values indicating rougher skin.
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Baseline, 2 weeks, and 12 weeks after the treatment series
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Change From Baseline in Skin Roughness (Antera 3D, Ra)
Délai: Baseline, 2 weeks, and 12 weeks after the treatment series
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Arithmetic roughness (Ra), measured in micrometres (µm) by Antera 3D.
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Baseline, 2 weeks, and 12 weeks after the treatment series
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Change From Baseline in Maximum Wrinkle Height (Antera 3D)
Délai: Baseline, 2 weeks, and 12 weeks after the treatment series
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Maximum surface height of wrinkles, measured in millimetres (mm) by Antera 3D.
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Baseline, 2 weeks, and 12 weeks after the treatment series
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Change From Baseline in Skin Hydration
Délai: Baseline, 2 weeks, and 12 weeks after the treatment series
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Skin hydration measured by corneometry (arbitrary corneometer units).
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Baseline, 2 weeks, and 12 weeks after the treatment series
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Change From Baseline in Sebum Secretion
Délai: Baseline, 2 weeks, and 12 weeks after the treatment series
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Sebum secretion measured by sebumetry.
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Baseline, 2 weeks, and 12 weeks after the treatment series
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Change From Baseline in Skin Tone Contrast (GLCM) in Participants With Hyperpigmentation
Délai: Baseline, 2 weeks, and 12 weeks after the treatment series
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Grey-level co-occurrence matrix (GLCM) contrast index in the hyperpigmented subgroup (n=14), assessed from standardised cross-polarised photographs.
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Baseline, 2 weeks, and 12 weeks after the treatment series
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Change From Baseline in Skin Tone Homogeneity (GLCM) in Participants With Hyperpigmentation
Délai: Baseline, 2 weeks, and 12 weeks after the treatment series
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Grey-level co-occurrence matrix (GLCM) homogeneity index (range 0-1; higher values indicate greater uniformity) in the hyperpigmented subgroup (n=14).
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Baseline, 2 weeks, and 12 weeks after the treatment series
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
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Change in Self-Assessed Facial Appearance, Neck Appearance, Wrinkle Depth, and Skin Firmness
Délai: Immediately after the fourth treatment session (each session is a single-day clinic visit; the four sessions were administered at 14-day intervals), compared with baseline
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Participants' perceived change in facial appearance, neck appearance, wrinkle depth, and skin firmness after the treatment series, each rated on a Likert scale from -5 (marked worsening) to +5 (marked improvement), with 0 indicating no change.
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Immediately after the fourth treatment session (each session is a single-day clinic visit; the four sessions were administered at 14-day intervals), compared with baseline
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Satisfaction With Wrinkle-Reduction and Firming Effects
Délai: Immediately after the fourth treatment session (each session is a single-day clinic visit; the four sessions were administered at 14-day intervals)
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Participants' satisfaction with the wrinkle-reduction effect and with the firming effect of the treatment, each rated on a scale from 0 (not satisfied at all) to 10 (extremely satisfied).
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Immediately after the fourth treatment session (each session is a single-day clinic visit; the four sessions were administered at 14-day intervals)
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Proportion of Participants Satisfied With Facial and Neck Appearance
Délai: Baseline and immediately after the fourth treatment session (each session is a single-day clinic visit; the four sessions were administered at 14-day intervals)
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Percentage of participants reporting satisfaction with the appearance of their face and neck, assessed before treatment and after the treatment series.
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Baseline and immediately after the fourth treatment session (each session is a single-day clinic visit; the four sessions were administered at 14-day intervals)
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Percentage Retention of Maximal Improvement in Wrinkle Volume and Skin Texture at 12 Weeks
Délai: 2 weeks and 12 weeks after the treatment series
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Persistence of the treatment effect, calculated as the percentage of the maximal improvement (observed at 2 weeks) that was retained at 12 weeks, for wrinkle volume and skin texture/roughness parameters measured by Antera 3D.
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2 weeks and 12 weeks after the treatment series
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Autres mesures de résultats
Mesure des résultats |
Description de la mesure |
Délai |
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Incidence of Local Skin Reactions and Adverse Events
Délai: Throughout the treatment series and follow-up period, up to 12 weeks after the last session
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Clinical monitoring for adverse events and local skin reactions associated with the procedure.
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Throughout the treatment series and follow-up period, up to 12 weeks after the last session
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Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Parrainer
Collaborateurs
Les enquêteurs
- Chercheur principal: Anna Deda, PhD, Medical University of Silesia in Katowice
- Chaise d'étude: Dominika Wcisło-Dziadecka, Prof, Medical University of Silesia in Katowice
- Directeur d'études: Sławomir Wilczyński, Prof, Medical University of Silesia in Katowice
Publications et liens utiles
La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.
Publications générales
- Chen FP, Lee N, Soong YK, Huang KE. Short- and long-term effects of hormone replacement therapy on cardiovascular risk factors in postmenopausal women. Chang Gung Med J. 2001 Jul;24(7):431-9.
- FORBES JI. Myasthenia gravis in an African woman. Cent Afr J Med. 1960 Jul;6:295-7. No abstract available.
- Houshmand EB. Effect of glycolic acid, phytic acid, soothing complex containing Emulsion on Hyperpigmentation and skin luminosity: A clinical evaluation. J Cosmet Dermatol. 2021 Mar;20(3):776-780. doi: 10.1111/jocd.13950. Epub 2021 Feb 2.
- Genever PG, Maxfield SJ, Kennovin GD, Maltman J, Bowgen CJ, Raxworthy MJ, Skerry TM. Evidence for a novel glutamate-mediated signaling pathway in keratinocytes. J Invest Dermatol. 1999 Mar;112(3):337-42. doi: 10.1046/j.1523-1747.1999.00509.x.
- Cuenod M, Do KQ, Herrling PL, Turski WA, Matute C, Streit P. Homocysteic acid, an endogenous agonist of NMDA-receptor: release, neuroactivity and localization. Adv Exp Med Biol. 1986;203:253-62. doi: 10.1007/978-1-4684-7971-3_19. No abstract available.
- Passeron T, Picardo M. Melasma, a photoaging disorder. Pigment Cell Melanoma Res. 2018 Jul;31(4):461-465. doi: 10.1111/pcmr.12684. Epub 2018 Jan 12.
- Shin JW, Kwon SH, Choi JY, Na JI, Huh CH, Choi HR, Park KC. Molecular Mechanisms of Dermal Aging and Antiaging Approaches. Int J Mol Sci. 2019 Apr 29;20(9):2126. doi: 10.3390/ijms20092126.
- Gromkowska-Kepka KJ, Puscion-Jakubik A, Markiewicz-Zukowska R, Socha K. The impact of ultraviolet radiation on skin photoaging - review of in vitro studies. J Cosmet Dermatol. 2021 Nov;20(11):3427-3431. doi: 10.1111/jocd.14033. Epub 2021 Mar 13.
- Miao F, Wan J, Zhou Y, Shi Y. Unraveling Melasma: From Epidermal Pigmentation to Microenvironmental Dysregulation. Biology (Basel). 2025 Oct 13;14(10):1402. doi: 10.3390/biology14101402.
- Lee H, Hong Y, Kim M. Structural and Functional Changes and Possible Molecular Mechanisms in Aged Skin. Int J Mol Sci. 2021 Nov 19;22(22):12489. doi: 10.3390/ijms222212489.
- Ni J, Wang N, Gao L, Li L, Zheng S, Liu Y, Ozukum M, Nikiforova A, Zhao G, Song Z. The effect of the NMDA receptor-dependent signaling pathway on cell morphology and melanosome transfer in melanocytes. J Dermatol Sci. 2016 Dec;84(3):296-304. doi: 10.1016/j.jdermsci.2016.08.534. Epub 2016 Aug 24.
- Kaltchenko MV, Chien AL. Photoaging: Current Concepts on Molecular Mechanisms, Prevention, and Treatment. Am J Clin Dermatol. 2025 May;26(3):321-344. doi: 10.1007/s40257-025-00933-z. Epub 2025 Mar 12.
Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude (Réel)
29 octobre 2025
Achèvement primaire (Réel)
1 avril 2026
Achèvement de l'étude (Réel)
1 avril 2026
Dates d'inscription aux études
Première soumission
9 juillet 2026
Première soumission répondant aux critères de contrôle qualité
22 juillet 2026
Première publication (Réel)
23 juillet 2026
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
23 juillet 2026
Dernière mise à jour soumise répondant aux critères de contrôle qualité
22 juillet 2026
Dernière vérification
1 juillet 2026
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- KNW/0022/KB1/27/16
Plan pour les données individuelles des participants (IPD)
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Description du régime IPD
The individual participant data underlying the results reported in this article are included in the article and its supplementary materials.
Further inquiries can be directed to the corresponding author.
Délai de partage IPD
Available upon reasonable request from the corresponding author, beginning from the date of publication, with no specified end date.
Critères d'accès au partage IPD
Data will be made available to qualified researchers who submit a reasonable request to the corresponding author (Anna Deda, adeda@sum.edu.pl), for the purpose of methodologically sound reanalysis, subject to authors' approval.
Type d'informations de prise en charge du partage d'IPD
- PROTOCOLE D'ÉTUDE
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
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