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Skincare Ingredient

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Hydrolyzed Soy Protein

In Skincare: Is Hydrolyzed Soy Protein Safe? Comedogenic Rating & Side Effects

Safety (overall safety)
2/5 — Low risk
Irritancy (skin irritation)
1/5 — Very low risk

Safety Information

Generally considered safe in cosmetics (CIR); low irritation risk. Limited safety data available for long-term or high-concentration use, and potential for mild skin irritation in sensitive individuals.

Key Benefits

What Hydrolyzed Soy Protein does for your skin

1 benefits
Anti-Aging

Overview

Ingredient Profile

Hydrolyzed soy protein is a derivative of soy protein created through a process that uses water to break down its molecular structure. This alteration results in smaller molecules, which can improve absorption and potentially enhance skin penetration. It exhibits antioxidant activity, helping to protect against free radical damage.
Classifications
Plant Extracts
Antioxidant

Data & Research

Scientific Facts

Plant-derived ingredients have a long history in cosmetics, dating back to ancient times. Historically, plants were utilized for their natural coloring properties, as sources of soothing and protective plant juices (like insect repellents), and for their fragrant oils. Before modern scientific advancements, plants were the primary source of ingredients for cleaning, moisturizing, concealing imperfections, and addressing minor skin conditions.

Common Uses

Formulation in Hydrolyzed Soy Protein

Hydrolyzed soy protein, along with related ingredients like glycine soja peptide and soy amino acids, are used in a variety of cosmetic products including body lotions, hand creams, facial and neck treatments, hair conditioners, hair dyes/colors, wave setting products, shampoos, and mascaras. These ingredients are utilized for their film-forming properties (soy peptide), hair conditioning effects, and as skin conditioners. They can also be used as emulsifying agents in formulations.

Role of Hydrolyzed Soy Protein

Active Cosmetic Mechanisms

ANTISTATIC

Static Eliminator

Reduces static electricity and flyaway hair

SCIENTIFIC ANALYSIS

// Evidence: Antistatic agents neutralize electrostatic charges through cationic surfactants (quaternary ammonium compounds like behentrimonium chloride) or conductive polymers that increase surface conductivity to dissipate charge or attract moisture. The mechanism involves forming a conductive film on fiber surfaces, neutralizing charge buildup. Particularly effective on damaged hair with raised cuticles.

HAIR CONDITIONING

Hair Softener

Improves hair manageability, softness, and appearance

SCIENTIFIC ANALYSIS

// Evidence: Hair conditioning ingredients smooth the cuticle, reduce frizz, and add shine through cationic surfactants (behentrimonium chloride), silicones (dimethicone, amodimethicone), natural oils, and proteins. These deposit on negatively charged damaged sites, neutralizing charge, filling surface irregularities, and providing lubrication. Mechanism involves electrostatic attraction, film formation, and surface smoothing.

HUMECTANT

Moisture Magnet

Attracts and retains moisture in skin and hair

SCIENTIFIC ANALYSIS

// Evidence: Humectant ingredients draw water from the environment and deeper skin layers through hygroscopic properties. Common humectants include glycerin, propylene glycol, hyaluronic acid, urea, and alpha-hydroxy acids. These contain multiple hydroxyl groups or other hydrophilic functional groups that form hydrogen bonds with water molecules. Mechanism involves attracting water to the stratum corneum, reducing transepidermal water loss, and increasing skin hydration.

SKIN CONDITIONING

Skin Enhancer

Maintains skin in good condition and improves its feel

SCIENTIFIC ANALYSIS

// Evidence: Skin conditioning ingredients enhance appearance, texture, and health of skin through various mechanisms. This broad category encompasses emollients, humectants, occlusives, and other agents that improve skin feel, appearance, and function. May work by moisturizing, smoothing, softening, or protecting skin. Effects include improved tactile properties, enhanced barrier function, and better overall skin condition.

Products

containing Hydrolyzed Soy Protein

987 formulations
Cellular Hydralift Firming Mask
Cellular Hydralift Firming Mask
La Prairie · masks
United State™ Balancing Tonic
United State™ Balancing Tonic
Origins · toning-essences
Kouji Treatment Eye Cream
Kouji Treatment Eye Cream
Hada Labo · eye-lip-care
Semantic Analysis

Similar Ingredients

Ingredients with similar chemical profiles and skincare properties.

Frequently Asked Questions

Hydrolyzed Soy Protein — common questions

What is Hydrolyzed Soy Protein in skincare?

Hydrolyzed soy protein is derived from soybeans (Glycine max and Glycine soja). It’s created by breaking down soy protein into smaller chains of amino acids through a process called hydrolysis – reacting it with water. These smaller chains are known as soy peptides and amino acids.

What does Hydrolyzed Soy Protein do? / Functions of Hydrolyzed Soy Protein?

Common functions: ANTISTATIC, HAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING.

What is the comedogenic rating of Hydrolyzed Soy Protein? / Is Hydrolyzed Soy Protein comedogenic?

The comedogenic rating of Hydrolyzed Soy Protein has not been established in our database.

Does it clog pores?
No Rating Available

Whether Hydrolyzed Soy Protein clogs pores depends on the formulation and concentration.

Is Hydrolyzed Soy Protein safe for skin?
2 2/5 — Low risk

Hydrolyzed Soy Protein has a safety rating of 2 out of 5. A rating of 2 means it is generally considered safe for most skin types. Note: Generally considered safe in cosmetics (CIR); low irritation risk. Limited safety data available for long-term or high-concentration use, and potential for mild skin irritation in sensitive individual

Is Hydrolyzed Soy Protein good for sensitive skin?
1 1/5 — Very low risk

Hydrolyzed Soy Protein has an irritancy rating of 1 out of 5. A rating of 1 means it is generally well-tolerated.

What are the side effects of Hydrolyzed Soy Protein in skincare?

Known considerations: Generally considered safe in cosmetics (CIR); low irritation risk. Limited safety data available for long-term or high-concentration use, and potential for mild skin irritation in sensitive individuals.

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