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Dhaliwal, S., Rybak, I., Ellis, S.R., Notay, M., M Trivedi, M., Burney, W., Vaughn, A.R., Nguyen, M., Reiter, P., Bosanac, S., Yan, H., Foolad, N. and Sivamani, R.K. (2019) Prospective, Randomized, Double-Blind Assessment of Topical Bakuchiol and Retinol for Facial Photoageing. British Journal of Dermatology, 180, 289-296.
https://doi.org/10.1111/bjd.16918

has been cited by the following article:

• TITLE: A Face Serum Containing Palmitoyl Tripeptide-38, Hydrolyzed Hyaluronic Acid, Bakuchiol and a Polyherbal and Vitamin Blend Improves Skin Quality

  AUTHORS: Brett J. West, Ifedayo Alabi, Shixin Deng

  KEYWORDS: Face Serum, Bakuchiol, Palmitoyl Tripeptide-38, Hyaluronic Acid, Repeat Insult Patch Test, Tyrosinase, Collagenase, Antioxidant, Clinical Trial

  JOURNAL NAME: Journal of Cosmetics, Dermatological Sciences and Applications, Vol.11 No.3, September 18, 2021

  ABSTRACT: A face serum composed of a combination of biologically active compounds was evaluated for safety and efficacy in vitro, in a repeat insult patch test and in a human clinical efficacy trial. The serum inhibited tyrosinase activity modestly, decreased collagenase activity and exhibited notable free radical scavenging activity in vitro. It is gentle to the skin, as the serum did not irritate the skin or produce symptoms of allergic contact dermatitis in the 55 healthy adults that participated in the repeat insult patch test. In the efficacy trial, daily application of the face serum for 30 days significantly increased skin hydration, with all 35 volunteers experiencing improvement. Substantial improvements in skin elasticity, roughness (fine lines and wrinkles), and brightness also occurred during the trial. Dermatological examination also revealed a trend for reduced comedone count with use of the serum. Self-assessment responses revealed that all volunteers experienced improvements in multiple skin quality parameters and that participant perceptions are consistent with the results of the instrumental analyses. These findings indicated that the measured improvements in skin quality are not only statistically significant but are also clinically relevant as they were great enough for users of the face serum to feel and recognize.