407 The Human Stratum Corneum
(113) Chaudhuri RK, Bojanowski K. Bakuchiol: a retinol-like functional compound revealed by gene
expression profiling and clinically proven to have anti-aging effects. Int J Cosmet Sci. 2014 36(3):221–230.
doi:10.1111/ics.12117
(114) Choi HY, Lee YJ, Kim CM, Lee Y-M. Revolutionizing cosmetic ingredients: harnessing the power
of antioxidants, probiotics, plant extracts, and peptides in personal and skin care products. Cosmetics.
2024 11(5):157. doi:10.3390/cosmetics11050157
(115) Mauro TM. SC pH: measurements, origins and functions. In: Elias P, Feingold KR, eds. Skin Barrier.
Taylor &Francis Group 2006:223.
(116) Blaak J, Wohlfart R, Schürer NY. Treatment of Aged Skin with a pH 4 Skin Care Product Normalizes
Increased Skin Surface pH and Improves Barrier Function: Results of a Pilot Study. JCDSA. 2011 01(3):50–
58. doi:10.4236/jcdsa.2011.13009.
(117) Schmid-Wendtner MH, Korting HC. The pH of the skin surface and its impact on the barrier function.
Skin Pharmacol Physiol. 2006 19(6):296–302. doi:10.1159/000094670
(118) Ansari SA, Chapter 14. Skin pH and skin microflora. In: Barel AO, Paye M, Maibach HI, eds. Handbook
of Cosmetic Science and Technology. 4th ed. CRC Press 2014:163–173.
(119) Lambers H, Piessens S, Bloem A, Pronk H, Finkel P. Natural skin surface pH is on average below 5, which is
beneficial for its resident flora. Int J Cosmet Sci. 2006 28(5):359–370. doi:10.1111/j.1467-2494.2006.00344.x
(120) Fluhr JW, Darlenski R, Lachmann N, et al. Infant epidermal skin physiology: adaptation after birth. Br J
Dermatol. British Association of Dermatologists. 2012 166(3):483–490. doi:10.1111/j.1365-2133.2011.10659.x
(121) Hachem J-P, Roelandt T, Schürer N, et al. Acute acidification of stratum corneum membrane domains
using polyhydroxyl acids improves lipid processing and inhibits degradation of corneodesmosomes. J
Invest Dermatol. 2010 130(2):500–510. doi:10.1038/jid.2009.249.
(122) Angelova-Fischer I, Fischer TW, Abels C, Zillikens D. Accelerated barrier recovery and enhancement of
the barrier integrity and properties by topical application of a pH 4 vs. a pH 5·8 water-in-oil emulsion
in aged skin. Br J Dermatol. 2018 179(2):471–477. doi:10.1111/bjd.16591
(123) Buraczewska I, Lodén M. Treatment of surfactant-damaged skin in humans with creams of different pH
values. Pharmacology. 2005 73(1):1–7. doi:10.1159/000081068
(124) Hawkins S, Dasgupta BR, Ananthapadmanabhan KP. Role of pH in skin cleansing. Int J Cosmet Sci.
2021 43(4):474–483. doi:10.1111/ics.12721
408
J. Cosmet. Sci., 75.5, 408–422 (September/October 2024)
*Address all correspondence to Leslie Baumann, DrLeslieBaumann@skintypesolutions.com
AI-Guided Personalized Skin Care and Custom Routines
LESLIE BAUMANN
Former Professor of Dermatology, University of Miami, Miami, Florida, United States
Founder and CEO of Skin Type Solutions
Accepted for publication July 10, 2024.
Synopsis
Artificial intelligence (AI)-guided personalized skin care routine design requires accurate skin type diagnosis,
precise product labeling, and well-defined regimen templates. The Baumann Skin Typing System (BSTS),
a 16-skin type system used for decades by dermatologists, provides a solid foundation for AI-powered
customization of skin care. Utilizing the Baumann Skin Type® (MetaBeauty, Inc., Miami, FL) Indicator and
the Regimen Management System software—which contains over 40,000 regimen combinations and detailed
product tagging—professionals and consumers can create tailored routines that address multiple skin concerns
simultaneously. This comprehensive system, backed by decades of research and real-world application, utilizes
augmented intelligence to analyze large skin care datasets, identify patterns in user preferences, and provide
intelligent product recommendations that improve compliance and outcomes. The BSTS enhances the role
of cosmetic chemists by necessitating more sophisticated formulations that target multiple skin concerns,
making their expertise crucial. As AI models are trained with the BSTS knowledge base and dermatologist-
developed content and datasets, the integration of this system with AI technologies promises to revolutionize
skincare product development, marketing, and consumer experiences. This is ushering in a new era of precision
in personalized skincare products and will change the way the world shops for those products.
INTRODUCTION
Personalized skin care is a prominent trend in the cosmetics industry. With the rise of
artificial intelligence (AI), more companies offer personalized skin care routines. However,
most of these solutions fall short of being truly personalized and science-based, often
failing to deliver reproducible, effective outcomes that improve skin health. This is largely
due to inadequate diagnostic methods, insignificant data labeling, and haphazard product
categorization.1 This article discusses the importance of accurate skin phenotype diagnosis,
product selection, and routine design in achieving good outcomes. Proper regimen design
ensures that products enhance each other’s efficacy by placing synergistic products in the
correct step of a personalized skin care routine. The Baumann Skin Type®(BST)(MetaBeauty,
Inc., Miami, FL) Indicator (BSTI) and the associated Skin Type Solutions (STS)® (STS, Inc.,
Miami, FL) software both create science-based skin care regimens tailored to multiple skin
concerns. Augmented intelligence facilitates engagement, communication, education, and
motivation to improve consistency and compliance. Like a kaleidoscope creating complex
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