Hygiene — Process Challenge

Antiperspirant Actives & Skin-Compatible Bases

Antimicrobial actives, sweat-control systems, and skin-compatible carrier bases for underarm formulations
Updated Jun 2026
Solution Approach

RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Formulation Workflow
1
Concept & Claim Definition
Define the product type, sensory and claim targets, and the regulatory and label framework (INCI, regional cosmetic regulations, certifications).
2
Ingredient Selection
Match emollients, emulsifiers, surfactants, actives, preservatives, or rheology modifiers to the formula, skin-feel, and compatibility window.
3
Bench Formulation
Build and stabilize the emulsion or system at the bench, checking pH, viscosity, preservative efficacy, and aesthetics.
4
Stability & Compliance Validation
Run stability and compatibility testing, confirm preservative efficacy, and finalize the INCI, CoA, and documentation.
Recommended Chemistries (7)
Ethanol
CAS 64-17-5
Solvents
Alcohol solvent for toners and sprays
1987 (DENATURED ALCOHOL) · Class
Volatile solvent base with antimicrobial action that lowers odor-causing skin flora and carries the system
Melting Point: -114 °C   Boiling Point: 78 °C at 760 mmHg   Density: 0.79 at 20 °C
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Phenoxyethanol
CAS 122-99-6
Specialty Additives
Preservative and carrier solvent
Broad-spectrum antimicrobial that suppresses odor-forming bacteria in the formula and on application
Melting Point: 14 °C   Boiling Point: 245 °C at 760 mmHg   Density: 1.104
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Zinc Oxide
CAS 1314-13-2
Mineral Fillers & Pigments
Biocidal Action
3077 (ZINC OXIDE, CRUDE) · Class
Mild antibacterial that also binds odor compounds, used in skin-tolerant deodorant bases
Melting Point: 1975 °C   Density: 5.61   Solubility: 0.0004 % at 18 °C
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Aluminum Chlorohydrate (ACH)
CAS 12042-91-0
Specialty Additives
Conditioning
The classic antiperspirant active: on skin it hydrolyzes to an aluminum-hydroxide gel that plugs the sweat-duct opening, reducing perspiration — the sweat-control half of the problem
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Aluminum Zirconium Tetrachloride
CAS 134910-86-4
Acids & Salts
pH Adjustment
Aluminum-zirconium antiperspirant complex offering higher sweat-reduction efficacy than ACH alone for stick/clinical antiperspirant bases
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Propylene Glycol, USP/FCC Food Grade
CAS 57-55-6
Glycols & Polyols
Humectant, solvent, and preservative booster
Carrier and humectant that improves skin tolerance of alcohol/stick bases
Melting Point: -60 °C   Boiling Point: 188 °C at 760 mmHg   Density: 1.04 at 20 °C
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Caprylic/Capric Triglyceride
CAS 65381-09-1
Esters
Light dry-feel emollient and carrier oil
Light emollient that offsets dryness and improves underarm skin feel
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Our team can help with grade selection, dosage guidance, and multi-origin sourcing.

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