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 |
| Появление: | 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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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.
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