Hydroquinone Explained
Hydroquinone is a prescription lightener, never a shop recommendation; used without a dermatologist it can leave permanent dark staining.
Pregnancy: avoidPrescription onlyEvidence: strong
Label names (INCI): Hydroquinone
Written by the Oliareen editorial teamDermatologist review: pendingHow we write
What it does
Prescription skin lightener that blocks pigment production; strong, but misuse can leave permanent blue-black staining (ochronosis).
Often discussed for
This doesn't mean everyone with these needs it.
Concerns
How to approach it
If you're new to it
Start one new product at a time and patch test first: a little on the side of the jaw for a few days. Keep the rest of the routine simple.
General education, not a diagnosis or treatment plan.
Use carefully with
Stacking several actives raises the risk of irritation. If you're on any prescribed medicine, ask your doctor before adding an active.
- Prescription only - use only under a dermatologist
- Long unsupervised use can cause permanent blue-black staining (ochronosis)
- Often hidden in unlabelled fairness creams
Possible reactions
Stop if burning doesn't settle, or if you get a red rash, itching, swelling or peeling. Swelling of the face, lips or eyes, or trouble breathing, needs urgent medical care.
When to see a doctorEvidence and timing
- Evidence
- Evidence: strong
- Time to see a change (weeks)
- 8-12
Evidence comes from studies of specific formulas and strengths. Your product may behave differently.