Brightening Active
4-Butylresorcinol
Brightening, pigmentation-reducing, antioxidant
Key Benefits
- Targets stubborn dark spots
- Supports even-looking tone
- Helps reduce post-blemish marks
- Acts on a key pigment pathway
How It Works
Ingredient Details
INCI Name: 4-Butylresorcinol
Ingredient Type: Tone-evening active
Best For
Stubborn discoloration · Post-blemish marks · Uneven-looking tone · Targeted brightening routines
Research
View Ingredient Research →What It Is
What It Does
4-Butylresorcinol FAQs
Common questions about this ingredient in skincare.
What is 4-Butylresorcinol?
{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"It is a synthetic tone-evening active designed to inhibit tyrosinase, an enzyme required for melanin production."}]}]}
How does 4-Butylresorcinol work?
{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"It directly limits human tyrosinase activity, helping reduce excess melanin formation and the appearance of uneven pigmentation over time."}]}]}
What kinds of discoloration is it used for?
{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"It is used in formulas for stubborn dark spots, post-blemish marks, sun-related discoloration and uneven-looking tone."}]}]}
How long does it take to see results?
{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Tone-evening results are gradual and are commonly evaluated over several weeks. The exact timing depends on concentration, formulation, pigmentation type, consistency and sun exposure."}]}]}
Can 4-Butylresorcinol be combined with other brightening ingredients?
{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Yes. It may be paired with ingredients such as niacinamide, vitamin C derivatives, alpha-arbutin or exfoliating acids. Introduce potent combinations gradually if skin is sensitive."}]}]}
Is sunscreen necessary when using 4-Butylresorcinol?
{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Yes. Daily broad-spectrum sunscreen helps prevent ultraviolet exposure from triggering new pigment and undermining progress."}]}]}
Shop the ingredient
Products Featuring 4-Butylresorcinol
