CAS Number: 57-55-6
INCI: Propylene Glycol
Composition: Propylene glycol is composed of carbon, hydrogen, and oxygen atoms. Its molecular structure consists of two hydroxyl groups (-OH) attached to a propane backbone.
Purity Grade: No purity grade applicable
Appearance: Propylene glycol is typically a clear, colorless, and odorless liquid with a slightly sweet taste. It has a viscosity similar to that of water.
Solubility: Propylene glycol is miscible with water and many organic solvents, which means it can dissolve in various substances.
Preservation: Propylene glycol itself has preservative properties due to its ability to inhibit microbial growth. However, in formulations, additional preservatives may be necessary depending on the specific application and other ingredients used.
Storage: Store in a closed container at a dry place at room temperature
Country of Origin: India
Raw Material Source: Propylene glycol is produced from propylene oxide, which is derived from petrochemical sources.
Manufacture: Propylene glycol is primarily manufactured through the hydration of propylene oxide. This process involves reacting propylene oxide with water under controlled conditions to produce propylene glycol.
Animal Testing: Not animal tested
GMO: GMO-free (does not contain plant-derived components)
Vegan: Does not contain animal-derived components
Proposition: PROPYLENE GLYCOL complies with relevant regulations and guidelines.
Warning: Avoid contact with eyes and skin. Use appropriate protective equipment when handling.
General Description:
Propylene glycol (PG), also known as 1,2-propanediol, is a synthetic organic compound with the chemical formula C₃H₈O₂. It is a colorless, odorless, and slightly viscous liquid that is highly soluble in water. Propylene glycol is widely used in various industries, including food, pharmaceuticals, and cosmetics, due to its versatile properties.
Uses in the Cosmetic Industry:
- Humectant: Propylene glycol is commonly used as a humectant in cosmetics, meaning it helps to attract and retain moisture in the skin. This makes it a valuable ingredient in moisturizers, lotions, and creams.
- Solvent: It acts as a solvent, helping to dissolve other ingredients in a formulation, which ensures even distribution and effectiveness of the product. This is particularly important in products like serums, toners, and gels.
- Emollient: Propylene glycol is used as an emollient to help soften and smooth the skin, providing a more pleasant texture and feel to products such as lotions and creams.
- Preservative: It has antimicrobial properties that help preserve the shelf life of cosmetic products by inhibiting the growth of bacteria and fungi.
- Penetration Enhancer: Propylene glycol can enhance the penetration of active ingredients into the skin, making it a useful component in treatments designed to deliver specific benefits, such as anti-aging or acne-fighting products.
- Stabilizer: It helps stabilize formulations, ensuring that the ingredients remain effective and do not separate over time.
Hazards and Safety Concerns:
While propylene glycol is generally considered safe for use in cosmetics, there are some potential hazards and safety concerns:
- Skin Irritation: In some individuals, propylene glycol can cause skin irritation, particularly in those with sensitive skin. Symptoms may include redness, itching, and dryness. It is important to conduct patch testing for individuals with sensitive skin.
- Allergic Reactions: Although rare, some people may experience allergic reactions to propylene glycol. Symptoms can include rash, hives, and swelling. Those with a known allergy to propylene glycol should avoid products containing this ingredient.
- Eye Irritation: Direct contact with the eyes can cause irritation. Products containing propylene glycol should be used with care to avoid eye contact.
- Potential Toxicity: While generally recognized as safe at low concentrations, excessive exposure to propylene glycol can be harmful. Ingestion of large amounts can lead to central nervous system depression and other toxic effects.
- Environmental Impact: Propylene glycol is biodegradable and considered to have a low environmental impact. However, large-scale industrial use and disposal can contribute to environmental pollution if not managed properly.
