1.
In vitro and in vivo evaluation of a moisture treatment cream containing three critical elements of natural skin moisturization.
McDaniel, DH, Dover, JS, Wortzman, M, Nelson, DB
Journal of cosmetic dermatology. 2020;(5):1121-1128
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Abstract
OBJECTIVES To evaluate skin barrier and hydration effects of a new rebalancing moisture treatment (TRMT) and to assess efficacy and tolerability in subjects with photodamaged skin. METHODS In an epidermal skin model, tissues (n = 5/group) were topically treated with 25 µL of TRMT, 25 µL of a market-leading moisturizer (MLM), or untreated for 60 minutes. Hydration was measured at 0, 15, and 30 minutes. Tissues were harvested for gene expression analysis of markers associated with skin barrier and hydration: Claudin (CLD), Aquaporin (AQP), Hyaluronic Acid Syntheses (HAS), and Hyaluronidase (HYAL). A clinical study evaluated twice-daily application of TRMT, assessing changes in fine lines/wrinkles, brightness, texture, erythema, and tolerability from baseline through week 8. Hydration was measured using electrical impedance. RESULTS TRMT and MLM demonstrated significant increases in hydration vs untreated tissue at each timepoint (P < .005), with greater hydration effects observed for TRMT vs MLM. TRMT-treated tissues demonstrated greater expression of CLD, AQP, and HA, and reduced expression of HYAL vs untreated and MLM-treated tissues. Twice-daily application of TRMT demonstrated significant improvements at 2 weeks in fine lines/wrinkles (P < .001), brightness (P < .0001), texture (P < .0004), and hydration (P < .004). At 8 weeks, statistically significant improvements were achieved in all categories. CONCLUSION In an epidermal skin model, TRMT demonstrated significant increases in hydration, greater hydration effects, and expression of key markers associated with skin barrier and hydration vs a MLM. Twice-daily application of TRMT was well tolerated and resulted in early, significant improvements in hydration and visible improvements in skin brightness, texture, fine lines/wrinkles, and erythema at 8 weeks.
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Clinical evidence of the efficacy and safety of a new 3-in-1 anti-aging topical night serum-in-oil containing melatonin, bakuchiol, and ascorbyl tetraisopalmitate: 103 females treated from 28 to 84 days.
Goldberg, DJ, Robinson, DM, Granger, C
Journal of cosmetic dermatology. 2019;(3):806-814
Abstract
BACKGROUND Topical melatonin is a potent antioxidant, yet there have been few clinical studies on its anti-aging effects on the skin. OBJECTIVES To clinically assess the anti-aging efficacy and safety of a new 3-in-1 night facial serum (NFS) combining melatonin with bakuchiol, a novel retinol-like ingredient, and ascorbyl tetraisopalmitate, in all skin types. METHODS Five clinical studies were performed, with a total of 103 subjects treated from 28 to 84 days. Under dermatologist supervision, a 3-month efficacy and safety study evaluated anti-aging properties by clinical scoring and instrumental evaluations. Two studies evaluated skin hydration properties for 12 hours after a single application of NFS. Two studies were performed in oily skin: a 1-month efficacy and safety study and a 1-month comedogenesis study. RESULTS After 12 weeks, clinical evaluation showed a statistically significant decrease in wrinkles (11%), an increase in skin firmness (8%), a reduction in redness (70%; P < 0.01 for all), and an overall improvement in skin quality and complexion. The reduction in wrinkles and the increase in skin firmness were also supported by instrumental evaluations (Dermatop and Dynaskin). Hydration levels increased significantly from 30 minutes until 12 hours and transepidermal water loss significantly decreased after 4H and 6H. Subjects favorably evaluated the efficacy and cosmetic properties of the serum, and it was well tolerated in all skin types including oily skin. CONCLUSIONS This 3-in-1 NFS showed significant clinical anti-aging effects when applied once daily and was well tolerated.
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Evaluation of the effectiveness and safety of peppermint peel (PMP) soft peeling for skin ageing.
Scarano, A, Amodeo, V, Leonardi, V, Mortellaro, C, Sbarbati, A, Amuso, D, Amore, R, Pagnini, D
Journal of biological regulators and homeostatic agents. 2019;(6 Suppl. 2):93-101. DENTAL SUPPLEMENT
Abstract
Turning to peeling in a dermatological sphere is extensively common and has been used for a long time. From the use of single acids moving on to the so-called compound peelings (associations of more than one substance in the same product) and the combined peelings which take advantage of the action of different substances in a synergistic manner (different products are applied sequentially) in order to best guarantee a greater effectiveness of the treatment for the recommended target. Superficial peelings, combined and not, have led to a drastic reduction in the percentage of incidence of adverse events typical of medium and deep peels. Nevertheless, it has been demonstrated that superficial peels bring about a rejuvenating effect through the mechanical stimulation of the Skin Stress Response System (SSRS), system designated to repairing the damaged tissue and restoring of the normal homeostasis. Clinical trials aims to evaluate the effectiveness and safety of the peppermint peel (PMP) medical device in subjects with different ageing expressions both in qualitative terms (different blemishes such as discolouration, fine wrinkles, elastosis, atony and skin inelasticity, laxity, scarce superficial hydration) and in quantitative terms (degree, extension and number of lesions). A non-controlled multi-centric clinical trial was done in 121 subjects. The use protocol calls for a session every 2 weeks for a total of 4 sessions. Subjects were evaluated before each subsequent session at the first and at 2-4-8 weeks of the fourth and last treatment. During the study there were no adverse events. Only a minimal scurfy flaking and a very slight redness were reported. From an effectiveness point of view, the percentage of therapeutic failure, judged with a score equal to or greater than 4 or 5 in Global Aesthetic Improvement Scale (GAIS) scale was 0%. Best score was obtained in subjects ranging in ages between 38 and 57 (2.02) and in women (2.02) years, while the less satisfactory one was obtained in males (2.14). The study has demonstrated that PMP and the proposed protocol are effective and safe to treat subject with skin signs of chrono and photo ageing, thanks to its capabilities of carrying out a mechanic action indicated as a coadjuvant in the treatment of the dermoepidermic revitalisation through chemical exfoliation and hydration.