ZLEY® ZMSK Potassium Methoxysalicylate (CAS 152312-71-5):
The Spot “Bomb Disposal Expert” – A Scientific Brightening Ingredient

ZLEY® ZMSK, with the INCI name Metossisalicilato di potassio, also known as 4MSK, is a derivative of salicylic acid, known for its gentle, non-irritating properties. In cosmetics and skincare products, its primary functions include antioxidant, spot-correcting, and skin conditioning. It is suitable for various product formulations.
ZLEY Group is a professional supplier of Potassium Methoxysalicylate (CAS 152312-71-5), providing stable quality, technical support, and global delivery services, covering over 60 countries. For specifications, samples, or quotations, please contact [email protected]
Informazioni sul prodotto: ZLEY®ZMSK Potassium Methoxysalicylate
- Safety & Risk: Safety Risk Level: 1 (Green, source: MeiLiXiuXing)
- Rischio cancerogeno: None (source: MeiLiXiuXing)
- Main Efficacy: Primary (Brightening & Spot Removal), Secondary (Barrier Repair, Photoprotective Effects)
- Aspetto: Polvere cristallina bianca o biancastra
- Dosaggio consigliato: 0.1% ~ 3% (Maximum allowable concentration in cosmetics: 3%)
- Solubilità: Idrosolubile
- Istruzioni per l'elaborazione: Dissolve in aqueous solution, add to the system at room temperature, and disperse evenly.
- Recommended System pH: 5 – 7
- Precauzioni: Label must state: “Contains Potassium Methoxysalicylate: Not for use on children under 3 years old.”
Is ZLEY® ZMSK Potassium Methoxysalicylate Safe?
Yes. Based on the review conclusions of China’s National Health Commission’s Cosmetic Safety Assessment Committee and data from cosmetic ingredient databases in other countries and regions, this ingredient, when used in cosmetics at the recommended concentration not exceeding 3%, poses no potential health risks under normal, reasonable, and foreseeable conditions of use.
Efficacy of ZLEY® ZMSK Potassium Methoxysalicylate in Skincare:
- Inhibits melanin production.
- Promotes keratinocyte differentiation and repairs the skin barrier.
- Provides photoprotective effects.
- Helps defend against pigmentation caused by UV exposure.
Why Source ZLEY® ZMSK Potassium Methoxysalicylate from ZLEY Group?
Through over 20 years of relentless effort and pursuit, ZLEY Group has become a modern enterprise integrating R&D, production, quality control, and sales. We are dedicated to providing clients with the highest quality personal care ingredients, semi-finished products, and customized formulation solutions to meet diverse needs, ensuring we deliver the best products and services. Email: [email protected]
Frequently Asked Questions (FAQ) about ZLEY® ZMSK Potassium Methoxysalicylate
Q1: What are the advantages of ZLEY® ZMSK Potassium Methoxysalicylate compared to ordinary salicylic acid (BHA)?
It is easier to formulate stably without the need for alcohol or alkaline neutralization, allowing for the creation of gentler products with lighter textures (e.g., clear serums). It is significantly less irritating than traditional salicylic acid, making it more suitable for sensitive skin or long-term use. Upon skin absorption, it allows for the slow release of salicylic acid, resulting in a milder and more sustained action. It also offers better formulation compatibility and can be combined with a wider range of active ingredients without causing formulation conflicts.
Q2: What skin types is ZLEY® ZMSK Potassium Methoxysalicylate suitable for?
It is highly suitable for oily, combination, and acne-prone skin. Due to its gentle nature, it may also be suitable for those with sensitive skin concerned with pores and rough texture (but a patch test is still recommended). Individuals with dry skin can consider using it for localized treatment (e.g., T-zone).
Q3: Are there any formulation incompatibilities for ZLEY® ZMSK Potassium Methoxysalicylate?
Avoid the presence of copper or iron ions in the system; add a chelating agent if necessary. It may discolor under light/heat; water-soluble antioxidants such as Sodium Metabisulfite (1:10 ratio), BHT, or 0.05%~0.1% Benzophenone-5 can be added. It is not recommended to combine with traditional weak acids (e.g., Glycolic Acid, Lactic Acid); pairing with Vitamin C derivatives is suggested. Combination with 3-O-Ethyl Ascorbic Acid (at 1%) may cause yellowing; adding Sodium Bisulfite is recommended.
Q4: Where can I purchase high-quality ZLEY® ZMSK Potassium Methoxysalicylate in bulk?
You can contact [email protected] for pricing and specifications to directly source high-quality Potassium Methoxysalicylate from ZLEY Group.
