ZLEY® BRC-WS is a formulated cosmetic ingredient blend containing 4-Butylresorcinol (CAS 18979-61-8), propanediol, hydroxypropyl cyclodextrin, water and sodium bisulfite. The published ZLEY® technical sheet specifies 12.5% ± 1.0% 4-Butylresorcinol content and suggests 1–6% use of the supplied blend. Confirm the current batch specification before calculating the active contribution to a finished formula.

This supplier suggestion is not a universal safety limit. Assess stability, packaging and tolerance in the finished product for the intended market and users. Read our BRC-WS formulation and buyer guide for the TDS, SDS and comparison with neat 4-Butylresorcinol. Request the current COA, TDS and SDS from ZLEY® before use.

ZLEY®BRC-WS

Components (published TDS): Water, Propanediol, Hydroxypropyl Cyclodextrin, 4-Butylresorcinol, Sodium Bisulfite
4-Butylresorcinol content: 12.5% ± 1.0% in the supplied blend
外観: Colorless to yellowish transparent liquid
Supplier suggested dosage: 1.0–6.0% of the blend; confirm the current TDS and assess the finished formula
Formulation: Assess water compatibility, pH, color and packaging in the finished product

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What is ZLEY® BRC-WS?
ZLEY® BRC-WS is a supplied cosmetic ingredient blend containing 4-Butylresorcinol, propanediol, hydroxypropyl cyclodextrin, water and sodium bisulfite. The published TDS specifies 12.5% ± 1.0% 4-Butylresorcinol content.

What is the supplier suggested dosage?
The published TDS suggests 1.0–6.0% of the supplied blend. This is formulation guidance, not a universal regulatory maximum. Verify the current TDS and finished-product assessment.

Is it suitable for sensitive-skin products?
Suitability depends on the complete finished formula, intended users and local rules. Do not infer lack of irritation from the ingredient name; review the SDS and conduct appropriate testing.

Which documents should buyers request?
Request the current COA, TDS and SDS, and confirm active content, composition and batch quality before use.
別名
4-ブチルレゾルシノール
4-n-ブチルレゾルシノール
4-ブチル-1,3-ベンゼンジオール
ブチルレゾルシノール
ルシノール