Skincare Ingredient
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Colloidal Gold
In Skincare: Is Colloidal Gold Safe? Comedogenic Rating & Side Effects
Safety Information
Quick Insights
At a glance
- 01
Colloidal gold consists of nanosized gold particles designed to remain evenly dispersed within a solution.
- 02
Colloidal gold exhibits antimicrobial and antifungal properties.
- 03
Colloidal gold may improve the delivery or effectiveness of other cosmetic ingredients.
- 04
Despite being derived from gold, colloidal gold and elemental gold have distinct functions in cosmetic applications.
Overview
Ingredient Profile
Role of Colloidal Gold
Active Cosmetic Mechanisms
ANTIMICROBIAL
Germ FighterInhibits the growth of bacteria, fungi, and other microorganisms
SCIENTIFIC ANALYSIS
// Evidence: Antimicrobial agents possess bactericidal, bacteriostatic, fungicidal, or fungistatic properties through disrupting cell membrane integrity, inhibiting protein synthesis, interfering with metabolic pathways, or damaging DNA/RNA. Common antimicrobials include quaternary ammonium compounds, alcohols, chlorhexidine, triclosan, and essential oils. Efficacy depends on concentration, pH, contact time, and microbial load.
SKIN CONDITIONING - MISCELLANEOUS
General Skin ImproverImproves skin condition through various mechanisms
SCIENTIFIC ANALYSIS
// Evidence: This category includes skin conditioning ingredients working through mechanisms not classified as emollient, humectant, or occlusive. May include antioxidants providing protective conditioning, peptides supporting structural proteins, botanical extracts with various bioactive effects, or ingredients that improve skin condition through multiple simultaneous mechanisms. Provides diverse skin benefits that dont fit into other specific subcategories.
Products
containing Colloidal Gold
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References
Scientific sources
Personal Care Products Council, Accessed July 2023, ePublication
Molecules, July 2022, pages 1-10
Colloids and Surfaces B: Biointerfaces, May 2020, ePublication
Colloids and Surfaces B: Biointerfaces, April 2019, pages 439-448
Cogent Chemistry, June 2016, pages 1-9
Similar Ingredients
Ingredients with similar chemical profiles and skincare properties.
Frequently Asked Questions
Colloidal Gold — common questions
What is Colloidal Gold in skincare?
Colloidal Gold is the product obtained by the suspension of gold in water or other liquids.
What does Colloidal Gold do? / Functions of Colloidal Gold?
Common functions: ANTIMICROBIAL, SKIN CONDITIONING - MISCELLANEOUS.
What is the comedogenic rating of Colloidal Gold? / Is Colloidal Gold comedogenic?
The comedogenic rating of Colloidal Gold has not been established in our database.
Does it clog pores?
Whether Colloidal Gold clogs pores depends on the formulation and concentration.
Is Colloidal Gold safe for skin?
Colloidal Gold has a safety rating of 3 out of 5. A rating of 3 indicates moderate safety considerations. Note: Limited safety data for topical colloidal/nano-gold; generally low comedogenic concern but occasional irritation or allergic contact dermatitis reported (higher risk with damaged/sensitive skin or nan
Is Colloidal Gold good for sensitive skin?
Colloidal Gold has an irritancy rating of 3 out of 5. A rating of 3 means it may cause mild irritation for some.
What are the side effects of Colloidal Gold in skincare?
Known considerations: Limited safety data for topical colloidal/nano-gold; generally low comedogenic concern but occasional irritation or allergic contact dermatitis reported (higher risk with damaged/sensitive skin or nano-formulations). The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically evaluated colloidal gold, and the Environmental Working Group (EWG) notes limited safety data and potential for skin sensitization. Use with caution in individuals with sensitive skin or compromised skin barriers. Additional risks: skin irritation (irritancy rating 3/5).