Is Quaternium-73 fungal acne safe?

Yes, Quaternium-73 is generally considered safe for fungal acne-prone skin.

Is Quaternium-73 safe for pregnancy?

Caution is advised. Quaternium-73 is flagged for potential pregnancy concerns. We recommend consulting your doctor before use.

Is Quaternium-73 vegan?

No, Quaternium-73 is typically derived from animal sources.

Is Quaternium-73 comedogenic?

No, Quaternium-73 has a low comedogenic rating of 0/5 and is unlikely to clog pores.

Quaternium-73

Pionin

Good

Safe

Pores

0/5

Irritancy

0/5

FA Safe

✅ Yes

Pregnancy

⚠️ Caution

Vegan

❌ No

Science & Benefits

Quaternium-73 is an extremely potent antimicrobial active used at very low concentrations ($0.001–0.005\%$). It works by disrupting the cell membranes of C. acnes and Malassezia. It is zero-comedogenic. It is a 'logic hero' in K-Beauty and J-Beauty acne treatments, offering a powerful alternative to Benzoyl Peroxide that does not bleach fabrics or cause the same level of oxidative barrier damage.

Safety Alerts

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Pregnancy: Some studies suggest absorption or systemic effects. We recommend switching to a pregnancy-safe alternative.

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Non-Vegan: This ingredient is typically derived from animal sources (e.g. beeswax, lanolin, carmine).