Effervescent Foot Bath Composition for Dead Skin Exfoliation

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Solution Overview

Problem

Existing footbaths lack vigorous bubbling action, which hinders effective softening and removal of dry, rough skin during pedicure procedures.

Innovation Solution

An effervescent foot bath is formulated using a combination of a low pH acid, such as citric acid, and a carbonated base like sodium bicarbonate, creating a vigorous effervescent reaction to soften and remove dead skin.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a traditional footbath formulation is used, then the footbath is simple and easy to manufacture, but it lacks vigorous bubbling action and cannot effectively soften or remove dry, rough skin

Engineering Contradiction:
Improveskin softening and exfoliation effectivenessVSAvoidformulation complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent changes the chemical parameters of the footbath formulation by incorporating specific acid-base pairs (citric acid with sodium bicarbonate or potassium bicarbonate) that react to produce carbon dioxide gas, creating vigorous bubbling action that enhances skin softening and exfoliation effectiveness

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite chemical system combining multiple ingredients including acids, bicarbonates, and optional additives that work synergistically to produce both the effervescent action and the skin-softening effect, improving productivity while maintaining reasonable formulation complexity

Inventive Principle:
Principle #40Composite materials

2Productivity

If an effervescent reaction is introduced to soften skin, then skin exfoliation is enhanced, but the reaction must be carefully balanced to avoid harmful effects

Engineering Contradiction:
Improveskin exfoliation efficiencyVSAvoidpotential skin irritation from acid-base reaction
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent converts the potentially harmful strong acid-base reaction into a beneficial mild reaction by selecting weak acids (citric acid) and their corresponding bicarbonate salts, which produce a gentle effervescent action that exfoliates skin without causing irritation or damage

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent carefully controls the pH parameters and concentrations of the acid and base components to ensure the reaction remains within a safe range for skin contact, producing sufficient bubbling for exfoliation while avoiding harmful effects

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The effervescent reaction effectively softens and removes dead skin, allowing for efficient pedicure procedures by enhancing skin exfoliation through vigorous bubbling.

Implementation Method 1

combining a low pH acid with a carbonated base to produce an actively effervescent foot bath

Methodology Applied
Scientific EffectChemical reaction: Chemical Bonding

Implementation Method 2

produces a effervescing effect in a foot tub

Methodology Applied
Scientific EffectEffervescence: Bubble

Implementation Method 3

scrub the foot or feet thus submerged in the foot bath solution and perform various pedicure operations

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentUS12558300B1Effervescent foot bath and method
Publication Date: 2026.02.24 LE MICHAEL NGHIEM

AI summary

An effervescent foot bath which employs an acid in combination with a carbonated base to produces a effervescing effect in a closed foot tub. The reaction has been designed to function externally to soften and begin the process of removing dry, rough peeling skin from the feet.