What is Benzalkonium Chloride used for?

It is primarily used as an antiseptic to kill microorganisms and as a preservative to prevent microbial growth in various products.

Can Benzalkonium Chloride cause skin reactions?

Yes, it can cause skin irritation or allergic contact dermatitis in some individuals, especially at higher concentrations or with prolonged exposure.

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Benzalkonium Chloride

Benzalkonium Chloride is a quaternary ammonium compound used as an antiseptic and preservative. It has broad-spectrum antimicrobial activity, meaning it can kill various bacteria, viruses, and fungi. It is commonly found in disinfectants, sanitizers, and some ophthalmic solutions.

NoneAntiseptic, preservativeVeganEvidence: High

BenefitGood 3 / 4

RiskHigh 2.5 / 4

Irritation i2.5 / 4

Risk of short-term irritation — stinging, burning, dryness, redness, or discomfort. Common for strong actives, acids, retinoids, fragrances, and harsh surfactants.

Sensitization i1.5 / 4

Risk of allergic contact dermatitis or immune-based reactions. Fragrance allergens, preservatives, botanicals, and some dyes may score here.

Systemic exposure i0.5 / 4

Whether it has meaningful potential to be absorbed into the body at levels that may matter biologically. Most cosmetic ingredients score low unless there is known concern or high exposure.

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

Antimicrobial properties
Preservative in formulations

Things to watch

Can cause skin irritation
Potential for allergic reactions
May be irritating to eyes and mucous membranes

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Products with Benzalkonium Chloride

göt2b

Glued Styling Spiking Glue

3.2/ 52/13/9

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Frequently asked questions

What is Benzalkonium Chloride used for?: It is primarily used as an antiseptic to kill microorganisms and as a preservative to prevent microbial growth in various products.
Can Benzalkonium Chloride cause skin reactions?: Yes, it can cause skin irritation or allergic contact dermatitis in some individuals, especially at higher concentrations or with prolonged exposure.