EP4168970A1 - Procédé de détermination de formulations de produits de soins personnels - Google Patents

Procédé de détermination de formulations de produits de soins personnels

Info

Publication number
EP4168970A1
EP4168970A1 EP21739267.9A EP21739267A EP4168970A1 EP 4168970 A1 EP4168970 A1 EP 4168970A1 EP 21739267 A EP21739267 A EP 21739267A EP 4168970 A1 EP4168970 A1 EP 4168970A1
Authority
EP
European Patent Office
Prior art keywords
user
care product
formulation
vector
basis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21739267.9A
Other languages
German (de)
English (en)
Inventor
Franziska LEONHARDT
Dominik MICHELS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metricscosmetics GmbH
Original Assignee
Metricscosmetics GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metricscosmetics GmbH filed Critical Metricscosmetics GmbH
Publication of EP4168970A1 publication Critical patent/EP4168970A1/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/10—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G06Q30/0601—Electronic shopping [e-shopping]
    • G06Q30/0621—Item configuration or customization
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N3/00—Computing arrangements based on biological models
    • G06N3/02—Neural networks
    • G06N3/04—Architecture, e.g. interconnection topology
    • G06N3/0409—Adaptive resonance theory [ART] networks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G06Q30/0601—Electronic shopping [e-shopping]
    • G06Q30/0623—Item investigation
    • G06Q30/0625—Directed, with specific intent or strategy
    • G06Q30/0627—Directed, with specific intent or strategy using item specifications
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis

Definitions

  • the invention relates to a method and a device for the automated determination of an individual care product formulation for a user.
  • Cosmetic care products are playing an increasingly important role in the aesthetic well-being of the population. While in the past consumers were essentially limited to the possibility of making a selection from existing care products in an effort to find a care product that was suitable for their own needs by means of trial-and-error. Consumers could always have individual care products put together by pharmaceutically trained people. However, the formulation was then based on the pharmacist's normally rather limited personal experience.
  • a generic method is also known from WO 2019/148116 A1, by means of which an individual care product formulation is generated for a user using a neural network, likewise on the basis of image material and survey results.
  • the invention is based on the object of providing a method for the automated determination of an individual care product formulation for a user, which method provides a care product formulation that is as suitable as possible.
  • a feature input routine for determining individual skin features of the user
  • the neural network is formed in a first formulation run for the user with a learning vector set from parameterized expert knowledge
  • the set of learning vectors is adapted during further formulation runs by recording changes in the individual skin characteristics after the use of a previously determined care product formulation
  • a feature change routine for entering changes in skin features of the user after using a care product in accordance with the care product formulation, for adapting the set of learning vectors.
  • the method according to the invention represents a hybrid approach which initially includes background knowledge from domain experts (ie from dermatologists) who specify an initial mapping. This is enhanced by a structured analysis of user feedback, which increases the accuracy.
  • This feedback loop is designed in such a way that the user can give continuous feedback in two ways, both explicitly by naming and weighting positive and negative results and implicitly, for example, through sensory input such as image material of skin areas, which can be automatically and comparatively analyzed.
  • the mapping of the user vector to the corresponding feature vector is handled as a machine learning problem: the mapping is defined by means of a multi-layer neural network, the edge weights of which are set in such a way that a maximum correspondence quantifying objective function is maximized.
  • this functional also penalizes correspondences of user and feature vectors which, according to the information obtained through the feedback loop, have turned out to be insufficiently compatible.
  • This is based on the knowledge that the user information is always subject to his individual, subjectively colored assessment, so that a combination of parameterized expert knowledge and customer feedback is always included in the final weighting.
  • the interaction of the technical expertise required to implement this model and the professional assessment and objectivity of the domain experts from dermatology is a particular advantage of the invention. Due to the hybrid setup of user feedback and domain expertise, the role of the latter changes in successive formulation runs. If at the beginning, i.e. during the initial formulation run, it is still the experts who specify the mapping, this shifts towards the user with each subsequent formulation run, i.e.
  • the formulation of the personalized care product begins. This is done automatically by executing an optimization process specified on the basis of an ingredient and constraint model, which preferably includes one or more of the following constraints: minimum dosage, maximum dosage, compatibility restrictions with other ingredients.
  • the active ingredient model systematically records potential ingredients with their quantitative degrees of effectiveness in relation to specific effects.
  • the effects recorded in this way correspond in their entirety to the features explained above, so that the optimal combination of active ingredients that corresponds to the respective user can be determined algorithmically by means of optimization.
  • the addition of other ingredients is necessary to ensure product stability or a desired consistency.
  • the amount of active ingredients to be covered in the model can be adjusted over time.
  • no potentially health-endangering or paraffin-containing substances are used, so that a manageable amount of substances to be initially recorded is initially included in the model according to their availability and costs for prioritization.
  • this model can grow organically by adding further ingredients, e.g. on the basis of market trends and customer requirements.
  • a constraint model is added in which precisely that set of all constraint conditions to be met for the care product is recorded that lead to valid formulations.
  • these preferably also include compatibility restrictions in pairs and the use of sufficient amounts of basic combinations.
  • the feature input routine provides questions to the user to enable the input of individual skin features of the user in order to record several of the following data of the user: skin type, degree of sensitivity, tendency to irritation, formation of small veins or veins, pigment spots, redness, Impurities, moisture loss, firmness, elasticity, tendency to flaky spots, wrinkles, pore structure.
  • the user vector is generated from as many of these skin features as possible. The input takes place via the answering of questions by the user as well as via image evaluation through photographic recordings of skin areas in preferred areas.
  • the feature input routine enables the input of further non-skin-related data of the user: gender, living environment, stress level, sleeping habits, diet, water consumption, smoking habits, travel habits, sporting activities, UV radiation exposure, which are input via questions and answers.
  • the feature input routine enables the user to enter target specifications for the care product, preferably a care product sensor system, a care product color and / or a care product fragrance.
  • Photographic recordings are preferably made under different lighting spectra (infrared, red, blue, UV) in order to better identify individual features.
  • the learning vector set includes feature vectors from other users, whereby the accuracy of the formulations is improved with an increasing number of users based on the empirical values of these users.
  • the loss function optimization method determines a global minimum by means of a gradient method or the Monte Carlo algorithm.
  • the preferred Monte Carlo algorithm has the following sequence step n ⁇ n + 1:
  • F 0.995, for example, is stable in the application according to the invention. The algorithm converges after several hundred thousand steps.
  • a step n ⁇ n + 1 looks like this:
  • the object is achieved by a method for the automated determination of an individual care product formulation P user for a user, consisting of a number of ingredients I j , in respective amounts ⁇ j ,
  • ingredients I j can be determined from a total of M (1 ⁇ j ⁇ M) of available ingredients I M ,
  • a target composition P z for the user which has a number of properties F i from a total number of properties N, each property F i being given a degree ⁇ i and a priority ⁇ i (1 i N);
  • the priority ⁇ i with [0,1] c R can be specified, in particular, by prior input by the user via an input device, possibly taking into account generically stored values.
  • the quality is weighted by choosing a corresponding coefficient gi.
  • the price is weighted in the same way using the coefficient g 2 .
  • the solution of the optimization problem corresponds to argmin ( ⁇ 1 , ⁇ 2 ... ⁇ M ) ⁇ F ( ⁇ 1 , ⁇ 2 ... ⁇ M ) ⁇ .
  • ⁇ max must be specified.
  • the maximum dosage ⁇ 1 max , ⁇ 2 max , ..., ⁇ m max then corresponds to the relative proportions of the corresponding ingredients in the interval [0.1] in relation to the total formulation.
  • the values ⁇ i max are subject to both chemical and regulatory restrictions.
  • C nc ⁇ (AQUAXYL TM, salicylic acid), (AQUAXYL TM, bio-placenta), (bio-placenta, salicylic acid), (salicylic acid, AQUAXYL TM), (bio-placenta, AQUAXYL TM), (salicylic acid, bio-placenta ) ⁇ .
  • the global minimum is determined using a gradient method or a Monte Carlo method.
  • the output of the product composition P user to a care product generation unit can take place indirectly by outputting a corresponding data record that can be used to control the care product generation unit or can take place directly by initiating the production of the care product directly on the basis of the product composition P user.
  • the neural network trained by means of the set of learning vectors generates a user-specific feature vector F user from the user vector, which defines the features or properties of the care product formulation.
  • F user the following feature vector (right column) is given as an example.
  • the features corresponding to the respective quantitative values of the components of the feature vector are listed in the left column in addition to the feature vector.
  • the individual components of the feature vector are always real numbers in the closed interval [0,1] where 0 is not to be equated with any value of the respective feature and 1 with the maximum value.
  • This reduced active ingredient model here includes, for example, only the ingredient Arctalis TM, the effect of which is quantified here analogously to the feature vector with regard to the respective features. Its components are "Aqua, Propanediol, Xanthan Gum, Glyceryl Caprylate, Pseudoalteromonas Ferment Extract”.
  • Arctalis TM should not be combined with salicylic acid, as covered below.
  • the Monte Carlo algorithm converges after around 15,000 iterations.
  • the algorithm determines a formulation based on a product for normal skin which contains 4 components Arctalis TM, B-Circadin®, Neurophroline TM and HySilk®.
  • Figure 1 a block diagram of a device for performing the method
  • FIG. 2 a block diagram of the method according to the invention.
  • FIG. 1 shows a block diagram of a device 10 for carrying out the method, comprising a feature input unit 12, which comprises an interaction unit 14 for interactive data input by a user.
  • the interaction unit 14 preferably comprises a screen for visually outputting questions to the user, which questions can be entered by the user by actuating keys or an interactive screen or acoustically.
  • the feature input unit 12 further includes a Photo input unit 16 for generating photographic recordings of areas of skin, for example the nose, forehead or chin area of the user or the back of the hand.
  • a data processing unit 18 evaluates the user data entered via the feature input unit 12 and generates a user vector which is stored in a storage unit 20.
  • the user vector can have a large number of components, which are determined by answering questions to the user.
  • the user vector can have a large number of components, which are determined by answering questions to the user.
  • the user is preferably prompted to take a so-called "selfie", i.e. a photographic face photograph, and this is preferably evaluated and weighted according to the following criteria (0-100%):
  • the user vector is then automatically generated on the basis of the data entered.
  • the data processing unit 18 comprises a multilayer neural network 22. At least one learning vector set is stored in the memory unit 20 for teaching the network 22.
  • the neural network 22 trained by means of the set of learning vectors generates a feature vector from the user vector which contains the features of the care product formulation.
  • a learning vector set contains correlations between properties of the available substances that can be part of the care product formulation, as well as interactions with other substances.
  • the learning vector set was generated on the basis of dermatological expert knowledge and preferably on the basis of the knowledge gained from other users.
  • the learning vector set is also updated in a feedback loop through empirical knowledge based on previous treatments by the user with previously determined care product formulations and the effects resulting therefrom.
  • the interaction unit 14 can output questions about improvements or deterioration of certain skin characteristics to the user after a treatment with a certain care product formulation, the answers flowing into the learning vector set.
  • the data processing unit 18 is connected to a data output unit 24 which outputs the care product formulations determined in this way.
  • the data output unit 24 may comprise a visual display device.
  • the data output unit 24 can be coupled to a care product generation unit 26 which mixes the care product on the basis of the formulation located in the data output unit 24.
  • the care product generation unit 26 contains a number of containers 28 for holding substances that are potentially or necessarily part of the care product to be produced, as well as a mixing device 30 which mixes the care product from the substances in the containers 28 based on the specific care product formulation and places it in a suitable container issues.
  • an interactive data entry step 100 the user enters data on his skin profile by answering questions.
  • an optical data input step 102 a number of photographs of one or more skin sections are made by means of a camera.
  • data is evaluated, in particular by means of data processing algorithms, in order to extract certain skin features from the photographic recordings.
  • a plausibility check is also carried out on the image information obtained in order to check whether the skin properties entered by the user match the optically recorded skin properties. In the event of deviations, additional questions can be asked of the user or additional photos can be made and evaluated, e.g. under different lighting angles or different lighting spectra.
  • a user vector 106 is determined which contains all user information that is more or less relevant for the formulation.
  • a multi-layer neural network generates a feature vector 112 on the basis of the user vector 106 and a set of learning vectors stored in a knowledge database 110, which contains the features of the care product formulation to be determined.
  • step 114 the care product formulation 118 is determined from the feature vector 112 by means of an optimization method on the basis of an ingredient constraint database 116 using a loss function optimization method.
  • step 120 the care product is generated from available substances from the care product formulation 118 and filled into a suitable container for the user.
  • step 122 which is largely similar to the interactive data input step 100, enter his experiences and observations, which are stored in a user database 124 and in a subsequent formulation run become part of the learning vector set for teaching the neural network 22 in step 108.

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Abstract

L'invention concerne un procédé de détermination automatisée d'une formulation de produit de soins personnels pour un utilisateur, comprenant : - une routine d'entrée de caractéristiques servant à déterminer des caractéristiques cutanées personnelles de l'utilisateur ; - la génération d'un vecteur d'utilisateur sur la base de ces données ; la génération d'un vecteur de caractéristiques au moyen d'un réseau neuronal multicouche sur la base du vecteur d'utilisateur, ledit vecteur de caractéristiques contenant les propriétés et les fonctionnalités de la formulation de produit de soins à déterminer, et ledit réseau neuronal étant formé dans une première passe de formulation pour l'utilisateur avec un ensemble de vecteurs d'apprentissage à partir de l'expertise paramétrée, - l'ensemble de vecteurs d'apprentissage étant adapté lors d'autres passes de formulation par détection de modifications des caractéristiques cunanées personnelles après application d'une formulation de produit de soins déterminée antérieurement, ‑ la génération de la formulation de produit de soins personnels sur la base du vecteur de caractéristiques et d'une base de données de conditions de contrainte d'ingrédients à l'aide d'un procédé d'optimisation de fonction de perte, - une routine de modification de caractéristiques permettant d'entrer des modifications de caractéristiques cutanées de l'utilisateur après application d'un produit de soins selon la formulation de produit de soins, afin d'adapter l'ensemble de vecteurs d'apprentissage. Le procédé selon l'invention présente une approche hybride qui inclue d'abord des connaissances générales d'experts du domaine (c'est-à-dire de dermatologues) qui spécifient un mappage initial. Celui-ci est élargi par une analyse structurée du retour utilisateur, ce qui permet d'augmenter la précision.
EP21739267.9A 2020-06-19 2021-06-18 Procédé de détermination de formulations de produits de soins personnels Pending EP4168970A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020116304.5A DE102020116304A1 (de) 2020-06-19 2020-06-19 Verfahren zur Bestimmung individueller Pflegemittelformulierungen
PCT/EP2021/066721 WO2021255289A1 (fr) 2020-06-19 2021-06-18 Procédé de détermination de formulations de produits de soins personnels

Publications (1)

Publication Number Publication Date
EP4168970A1 true EP4168970A1 (fr) 2023-04-26

Family

ID=76829499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21739267.9A Pending EP4168970A1 (fr) 2020-06-19 2021-06-18 Procédé de détermination de formulations de produits de soins personnels

Country Status (6)

Country Link
US (1) US20230268046A1 (fr)
EP (1) EP4168970A1 (fr)
CN (1) CN115885305A (fr)
CA (1) CA3183167A1 (fr)
DE (1) DE102020116304A1 (fr)
WO (1) WO2021255289A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118279888B (zh) * 2024-05-29 2024-09-17 广州诗妃生物科技有限公司 一种去黑头靶向控制方法及系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3176658D1 (en) * 1981-12-10 1988-03-31 Revlon Process for making metallic leafing pigments
JP2006293563A (ja) 2005-04-07 2006-10-26 Pola Chem Ind Inc 美容情報提供システム
US9918931B2 (en) 2016-03-31 2018-03-20 L'oreal Method for providing a customized skin care product to a customer
TWI684939B (zh) * 2017-02-23 2020-02-11 博訊生物科技股份有限公司 客製化的保養品的平台系統及製造方法
KR20200116129A (ko) 2018-01-29 2020-10-08 애톨라 스킨 헬스, 인코포레이티드 개인화된 피부 관리 제품을 제형화하기 위한 시스템 및 방법
CN114502061B (zh) * 2018-12-04 2024-05-28 巴黎欧莱雅 使用深度学习的基于图像的自动皮肤诊断
KR102167185B1 (ko) * 2020-03-18 2020-10-19 이승락 피부 테스트 방법 및 이를 이용한 화장료 조성물 제조방법

Also Published As

Publication number Publication date
DE102020116304A1 (de) 2021-12-23
CN115885305A (zh) 2023-03-31
US20230268046A1 (en) 2023-08-24
WO2021255289A1 (fr) 2021-12-23
CA3183167A1 (fr) 2021-12-23

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