Cocoa Polyphenols for Bidirectional Skin Pigmentation Control

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Solution Overview

Problem

Current skin pigmentation treatments, such as those using hydroquinone, often suffer from toxicity and side effects like skin irritation, and lack effective regulation of melanin production for both hyperpigmentation and hypopigmentation conditions.

Innovation Solution

Cocoa polyphenols, specifically catechins, procyanidins, and anthocyanins, are used in topical compositions to regulate skin pigmentation by inhibiting or promoting melanin production depending on concentration, offering a safe and effective solution for both depigmentation and pigmentation issues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If hydroquinone is used to inhibit melanin production, then skin pigmentation is reduced, but skin irritation and toxicity occur

Engineering Contradiction:

Improvemelanin productionVSAvoidskin irritation and toxicity

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical parameter from hydroquinone to cocoa polyphenols (epicatechin, catechin, procyanidins, anthocyanins), which have different biological properties. These polyphenols inhibit melanin production through alternative mechanisms that do not involve the toxic pathways activated by hydroquinone, thereby achieving depigmentation without skin irritation or toxicity.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs naturally occurring cocoa polyphenols that are biodegradable and metabolized safely by the body, replacing the persistent and toxic hydroquinone. The polyphenols are excreted without accumulation, providing a safe alternative that eliminates the harmful long-term effects of hydroquinone use.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Quantity of substance

If existing depigmenting substances are used, then melanin production is inhibited, but they cannot effectively regulate both hyperpigmentation and hypopigmentation

Engineering Contradiction:

Improvemelanin production inhibitionVSAvoidregulation capability for both hyper and hypopigmentation

Core Design Contradiction:

Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The patent introduces a dynamic regulatory system where cocoa polyphenols can adapt their effect based on skin condition. The polyphenols inhibit melanin production in hyperpigmented areas through tyrosinase inhibition and antioxidant mechanisms, while in hypopigmented areas, they stimulate melanogenesis by activating melanocyte pathways, thus providing bidirectional regulation capability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent demonstrates that cocoa polyphenols possess multiple functions: they can inhibit melanin production (anti-melanogenic effect) and stimulate melanin production (pro-melanogenic effect) depending on the skin's physiological state. This multi-functionality allows a single substance to treat both hyperpigmentation and hypopigmentation conditions, unlike conventional depigmenting agents that only inhibit melanin.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP1879602B1Use of cacao polyphenols for controlling skin pigmentation

Publication Date: 2016.06.01 SOC DE RECH COSMETIQUE

AI summary

The invention relates to a novel use of cacao polyphenols. The polyphenols extracted from cacao (Theobroma cacao) or cacao cells are used for preparing a composition for controlling a skin pigmentation by limiting or promoting said pigmentation according to the concentration. The composition can be used in cosmetic and/or pharmaceutical pigmentation controlling compositions for topical application.