Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle

ALUMINUM SESQUICHLOROHYDREX PEG.

Essential CAS 242812-86-8 / ANTIPERSPIRANT, ASTRINGENT, DEODORANT

A potent antiperspirant active, Aluminum Sesquichlorohydrex PEG temporarily reduces sweat secretion and controls odor. It is recognized as an FDA-approved ingredient for over-the-counter use.

antiperspirant astringent deodorant

Science

This ingredient forms temporary aluminum hydroxide gel plugs within sweat ducts, effectively blocking sweat release. It also exhibits astringent properties and antimicrobial action to reduce odor-causing bacteria.


Research

High confidence
Effective range 0–25%
Optimal

N/A

Key findings

  1. 01 Clinical efficacy studies typically show a 20% to 60% reduction in sweat secretion, dependent on concentration and formulation pH.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 3 – 5
0 7 14

Stability

Stability is highly pH-dependent; increasing the pH above 5.0 shifts equilibrium toward insoluble aluminum hydroxide, causing premature precipitation.

Conflicts

  • Phosphate buffers
  • Citrate buffers
  • Strongly alkaline ingredients
  • Anionic surfactants

Safety

CIR Status
Not reviewed
Max tested
25%
Sensitization risk Low

CIR has deferred evaluation as safety is assessed by FDA for OTC drug use, permitting it up to 25% on an anhydrous basis. SCCS considers aluminum compounds safe in antiperspirants at concentrations equivalent to 6.25% aluminum.


Your Skin

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Essential

An FDA-approved antiperspirant, this ingredient effectively reduces sweat and controls odor with established safety parameters.


Related

Finding similar ingredients…