Hydroquinone
A potent skin-lightening agent used to treat hyperpigmentation.
Regulatory Info
What to Avoid Mixing With
General guidance
Hydroquinone reduces your natural UV defense. Always use strong SPF in the morning with hydroquinone.
Both can cause temporary skin staining when combined. If using together, let each fully absorb before applying the next.
AHAs increase hydroquinone penetration, which can cause more irritation. Use lower concentrations if combining.
Hydroquinone and retinoid together is a clinical protocol but increases irritation. Use under dermatologist guidance.
Both target hyperpigmentation through different paths. Together they can irritate. Alternate AM/PM for best results.