MAGNESIUM STEARATE
What is MAGNESIUM STEARATE (CAS 557-04-0) in cosmetics and what are its global regulatory limits?
MAGNESIUM STEARATE (CAS No. 557-04-0) is a verified cosmetic ingredient primarily functioning as Colorant, Anticaking, Bulking in topical formulations. Regulated under KR MFDS (Listed / Allowed) and EU 1223/2009 CosIng (Labelling / Claim) statutory frameworks, it is typically formulated at 2.2–5% within an optimal stability window of pH 4–8.
7-Track Official Regulatory Label Names Matrix
Primary Statutory Gazette Only · Zero Machine Translation| Jurisdiction Track | Official Statutory Label Name | One-Click Copy |
|---|---|---|
| 1. Korea (MFDS Standard Name) | MAGNESIUM STEARATE (KR MFDS Registered) | |
| 2. Korea Former Nomenclature History | — | — |
| 3. European Union (EU CosIng Glossary) | MAGNESIUM STEARATE | |
| 4. United States (US PCPC / MoCRA INCI) | MAGNESIUM STEARATE | |
| 5. US FDA OTC Monograph Active Name | — (Cosmetic Inactive / Non-OTC) | — |
| 6. China (NMPA IECIC Standard Name) | 硬脂酸镁 | |
| 7. Japan (JCIA Standard / MHLW Quasi-Drug) | MAGNESIUM STEARATE (Standard INCI Reference) |
Layer 1 — Statutory Regulatory Limits Across 6 Regions
| Region | Status | Max Limit | Conditions & Statutory Source |
|---|---|---|---|
| Korea (MFDS) | Listed / Allowed | GMP | Listed in official cosmetic inventory |
| Europe (EU) | Labelling / Claim | GMP | Listed in official cosmetic inventory |
| United States (FDA) | Unregulated | GMP | Listed in official cosmetic inventory |
| China (NMPA) | Listed / Allowed | GMP | IECIC Entry #8036 |
| Japan (MHLW) | Unregulated | GMP | Listed in official cosmetic inventory |
| ASEAN (ACD) | Unregulated | GMP | Listed in official cosmetic inventory |
Layer 3 Formulation Concentration Box-Plot vs. Statutory Limit
Layer 3 — Formulation Usage Guide (Quartiles n≥5) & Physicochemical Compatibility
| Formulation Group | Min – Q1 – Median – Q3 – Max (%) | Role & Mechanism | Source ID |
|---|---|---|---|
| Group D — Sunscreen (UV) / Color Cosmetics / Foundation | 2.2% · 2.5% · 2.75% · 4.5% · 5% | Sun care & color cosmetics dispersion / sensory modifier | Global Starter Formulation Library Statistical Distribution (n=6, EVONIK 6) |
Stratum Corneum Penetration Depth & Bio-Spicule Transdermal Delivery
Under passive topical application, molecules diffuse tortuously through intercellular lipids. Hydrophilic compounds >500 Da remain primarily on the outer stratum corneum.
pH Stability Window (0–14), Thermal Limit & HLB Colloidal Phase Behavior
Outside pH 4–8, risk of hydrolysis, viscosity loss, or ionic dissociation increases.
Thermally stable up to 50°C during standard emulsification.
Cellular & Molecular Target Mechanism Flow
Interactive Synergy Pairings (Solid) & Incompatibility Warnings (Dashed)
Click any green synergy node to jump directly to its monograph, or click a red dashed node to inspect the chemical incompatibility mechanism.
Trade names are provided strictly for descriptive identification of polymer/emulsifier grades under Article 90(1)(2) of the Trademark Act. All trademarks belong to their respective owners.
Academic & Toxicological Synthesis
Tier 1 SynthesisSynthesized strictly from peer-reviewed PubMed abstracts and official toxicological dossiers linked to this ingredient.
Linked Peer-Reviewed Literature (NIH PubMed) (1)
Anabolic steroids for treating pressure ulcers. [PMID: 28631809 · 2017]
Pressure ulcers, also known as bed sores, pressure sores or decubitus ulcers develop as a result of a localised injury to the skin or underlying tissue, or both. The ulcers usually arise over a bony prominence, and are recognised as a common medical problem affecting people confined to a bed or wheelchair for long periods of time. Anabolic steroids are used as off-label drugs (drugs which are used without regulatory approval) and have been used as adjuvants to usual treatment with dressings, debridement, nutritional supplements, systemic antibiotics and antiseptics, which are considered to be supportive in healing of pressure ulcers. Anabolic steroids are considered because of their ability to stimulate protein synthesis and build muscle mass. Comprehensive evidence is required to facilitate decision making, regarding the benefits and harms of using anabolic steroids. To assess the effects of anabolic steroids for treating pressure ulcers. In March 2017 we searched the Cochrane Wounds Specialised Register; the Cochrane Central Register of Controlled Trials (CENTRAL); Ovid MEDLINE (including In-Process & Other Non-Indexed Citations); Ovid Embase and EBSCO CINAHL Plus. We also searched clinical trials registries for ongoing and unpublished studies, and scanned reference lists of relevant included studies as well as reviews, meta-analyses and health technology reports to identify additional studies. There were no restrictions with respect to language, date of publication or study setting. Published or unpublished randomised controlled trials (RCTs) comparing the effects of anabolic steroids with alternative treatments or different types of anabolic steroids in the treatment of pressure ulcers. Two review authors independently carried out study selection, data extraction and risk of bias assessment. The review contains only one trial with a total of 212 participants, all with spinal cord injury and open pressure ulcers classed as stage III and IV. The participants were mainly male (98.2%, 106/108) with a mean age of 58.4 (standard deviation 10.4) years in the oxandrolone group and were all male (100%, 104/104) with a mean age of 57.3 (standard deviation 11.6) years in the placebo group. This trial compared oxandrolone (20 mg/day, administered orally) with a dose of placebo (an inactive substance consisting of 98% starch and 2% magnesium stearate) and reported data on complete healing of ulcers and adverse events. There was very low-certainty evidence on the relative effect of oxandrolone on complete ulcer healing at the end of a 24-week treatment period (risk ratio RR) 0.81, 95% confidence interval (CI) 0.52 to 1.26) (downgraded twice for imprecision due to an extremely wide 95% CI, which spanned both benefit and harm, and once for indirectness, as the participants were mostly male spinal cord injury patients). Thus, we are uncertain whether oxandrolone improves or reduces the complete healing of pressure ulcers, as we assessed the certainty of the evidence as very low.There was low-certainty evidence on the risk of non-serious adverse events reported in participants treated with oxandrolone compared with placebo (RR 3.85, 95% CI 1.12 to 13.26) (downgraded once for imprecision and once for indirectness, as the participants were mostly male spinal cord injury patients). Thus, the treatment with oxandrolone may increase the risk of non-serious adverse events reported in participants.There was very low-certainty evidence on the risk of serious adverse events reported in participants treated with oxandrolone compared with placebo (RR 0.54, 95% CI 0.25 to 1.17) (downgraded twice for imprecision due to an extremely wide 95% CI, which spanned both benefit and harm, and once for indirectness, as the participants were mostly male spinal cord injury patients). Of the five serious adverse events reported in the oxandrolone-treated group, none were classed by the trial teams as being related to treatment. We are uncertain whether oxandrol
Frequently Asked Questions (AEO Position 0)
- Q1. What are the official 7-track regulatory label names for MAGNESIUM STEARATE?
- Standard label names are US PCPC INCI: 'MAGNESIUM STEARATE', EU CosIng: 'MAGNESIUM STEARATE', KR MFDS: 'MAGNESIUM STEARATE (KR MFDS Registered)', CN NMPA IECIC: '硬脂酸镁', and JP JCIA: 'MAGNESIUM STEARATE'.
- Q2. Is MAGNESIUM STEARATE restricted or permitted in EU, US, KR, CN, and JP cosmetics?
- Regulatory status summary across 6 jurisdictions — KR: allowed, EU: noted, US: none, CN: allowed, JP: none, ASEAN: none.
- Q3. What is the typical formulation concentration and optimal pH window for MAGNESIUM STEARATE?
- In sun_color systems, MAGNESIUM STEARATE is typically formulated between 2.2% and 5% (median 2.75%), with an optimal stability window of pH 4–8.
- Q4. What are the known formulation incompatibilities and synergy pairings for MAGNESIUM STEARATE?
- Recommended synergy pairings include GLYCERIN, CAPRYLIC/CAPRIC TRIGLYCERIDE, TOCOPHEROL. Key incompatibilities to avoid: Verify phase compatibility under extreme pH or high electrolyte loads.