Phenylethyl Resorcinol

Brightening active (SymWhite 377)

Phenylethyl resorcinol (trade name SymWhite 377) is a brightening ingredient used for the look of dark spots. It is a different molecule from 4-butylresorcinol (Rucinol) and from hydroquinone.

Good for

dark spots pigmentation uneven tone

Pairs well with

Niacinamide Sunscreen (SPF)

Good to know

Can irritate at higher strengths and is light-sensitive in the bottle — patch test and use daily sunscreen.

What the research actually tested

Matched for phenylethyl resorcinol or SymWhite 377 on the label.

JAAD 2024 meeting abstract — a phenylethyl resorcinol formulation

Published: 2024 (abstract)
How used: Topical formulation
Who: Not stated in the abstract (brand-run)
Tested: Whole branded formula
Compared with: Not stated in the abstract
Measured: Brightening measures

Limits: A brand's conference abstract on a full formula; not an independent, peer-reviewed controlled trial of the ingredient.

These studies used their own formulas and strengths. A stocked product naming the same ingredient is not proof of the same strength or result.

Products with Phenylethyl Resorcinol

0 in stock

Nothing stocked with Phenylethyl Resorcinol right now.

We can source it — ask us and we'll arrange or notify you.

All products Request it

Written by the Blac & Pink team from manufacturer information and general cosmetic-science references — general cosmetic information, not medical advice. Product matches are by name and the label text we hold; concentrations are not verified. Patch test new products and introduce actives one at a time. For persistent or medical skin concerns, consult a dermatologist.

About this page

Phenylethyl Resorcinol — what it does & products at Blac & Pink. Phenylethyl resorcinol (trade name SymWhite 377) is a brightening ingredient used for the look of dark spots. It is a different molecule from 4-butylresorcinol (Rucinol) and from hydroquinone. 0 in-stock topical products match the catalogue name or ingredient text. Verify the current pack; a match is not a concentration or efficacy certificate. Curated by Blac & Pink — beauty & wellness store in Nungambakkam / Akkarai, Chennai.

Ingredient:: Phenylethyl Resorcinol
Good for:: dark spots, pigmentation, uneven tone
Pairs with:: Niacinamide, Sunscreen (SPF)
In-stock products:: 0

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