PG / Mono Propylene Glycol / Propylene Glycol | Fragrance Solvent & Cosmetic Ingredient

Product Name

PG / Mono Propylene Glycol / Propylene Glycol

CAS No.: 57-55-6

🟢 Difficulty: Beginner
⏳ Lasting: Not Applicable
🧪 Function: Solvent / Carrier / Humectant

Description

Propylene Glycol (PG), also known as Mono Propylene Glycol, is a versatile, colorless and nearly odorless liquid widely used as a solvent, carrier and humectant in fragrance, cosmetic and personal-care formulations.

Unlike many aroma chemicals, PG is primarily a functional ingredient rather than a fragrance material. Its excellent compatibility with both water and many organic ingredients makes it useful for helping dissolve, dilute and distribute fragrance materials and other formulation components.

In perfumery, Propylene Glycol can be used as a carrier for fragrance concentrates, aroma chemicals and selected essential oils. It is also commonly encountered in personal-care, cosmetic and household formulations.

Key Characteristics

• Colorless liquid

• Nearly odorless

• Water-miscible

• Good solvent properties

• Hygroscopic

• Helps dissolve fragrance materials

• Useful as a carrier

• Humectant properties

• Suitable for many personal-care formulations

Recommended Use Level (Educational guideline only)

Use levels vary significantly depending on the application and finished-product requirements.

• Fragrance dilution: commonly used as a carrier/diluent

• Personal care: dosage depends on the specific formulation

• Home care: dosage depends on the intended product and formulation system

These are general formulation guidelines only. Always follow the supplier's specification and the applicable regulatory requirements for the intended application.

Works Well With

• Aroma Chemicals

• Essential Oils

• Fragrance Concentrates

• Water-based formulations

• Cosmetic ingredients

• Personal-care ingredients

• Selected botanical extracts

• Soluble fragrance materials

• Other compatible solvents

Common Applications

• Perfume Formulations

• Fragrance Bases

• Attars

• Body Sprays

• Deodorants

• Cosmetics

• Skin-Care Products

• Hair-Care Products

• Personal-Care Products

• Household Products

• Air Fresheners

• Fragrance Dilutions

Formulator's Tip

Propylene Glycol is best thought of as a formulation aid rather than an odor ingredient. It is useful when you need a water-compatible carrier or solvent to help incorporate suitable fragrance materials. When preparing a fragrance dilution, always check the solubility of the individual materials because not every aroma chemical or essential oil will remain clear and stable in a PG-based system.

Important: Use an appropriate grade for the intended application. Cosmetic, pharmaceutical, food and industrial grades can have different specifications and purity requirements.