Chemicals used in the cosmetics industry

Chemicals used in the cosmetics industry are employed to ensure product compatibility with the skin, achieve desired effects (moisturizing, cleansing, protection, coloring, etc.), extend shelf life, and enhance sensory properties. These chemicals are selected based on the formulation and used in varying dosages.

Chemicals Used in the Cosmetics Industry and Their Applications

1.Solvents & Carriers

Enable the dissolution of other ingredients and provide the appropriate consistency for the product.

• Water (Aqua):Most common carrier

• Alcohol (ethanol,isopropyl alcohol):Antibacterial and solvent

• Glycerin:Moisture-retaining and softening carrier

• Propylene glycol:Solvent and humectant

Usage:In liquid and semi-liquid products such as toners, perfumes, lotions, and creams

2.Emulsifiers

Bind water and oil together to create a homogeneous structure.

• Polysorbate 20/60/80

• Cetearyl alcohol

• Glyceryl stearate

• Lecithin

Usage:To provide stable consistency in creams, lotions, and hair care products

3.Surfactants

Perform functions such as cleansing, foaming, and degreasing.

• Sodium lauryl sulfate (SLS)

• Cocamidopropyl betaine

• Sodium laureth sulfate (SLES)

• Decyl glucoside(gentler alternative)

Usage:Shampoo, shower gel, facial cleanser, makeup remover

4.Preservatives

Prevent microbial growth and extend shelf life.

• Parabens (methylparaben, propylparaben)

• Phenoxyethanol

• Benzyl alcohol

• Potassium sorbate

• Sodium benzoate

Usage:In all water-based cosmetic formulations; to prevent contamination risk

5.Humectants & Emollients

Soften the skin and lock in moisture.

• Glycerin

• Hyaluronic acid

• Panthenol (Provitamin B5)

• Shea butter, jojoba oil, argan oil

• Dimethicone (silicone-based emollient)

Usage:Skin and hair care products, moisturizers, serums

6.Colorants & Fragrances

Enhance the aesthetic and sensory perception of the product.

• Cosmetic dyes specified by CI numbers (e.g.,CI 77491 – iron oxide)

• Natural and synthetic fragrances, essential oils

Usage:Lipstick, blush, foundation, perfume, deodorant

7.Active Ingredients

Provide the claimed effect of the product: anti-aging, anti-acne, sun protection, etc.

• Retinol (Vitamin A derivative): Anti-aging

• Salicylic acid, benzoyl peroxide: Anti-acne

• Niacinamide: Spot corrector, skin tone equalizer

• Zinc oxide,titanium dioxide: Sun protection

• Peptides and antioxidants (Vitamin C, Vitamin E)

Usage:Serums, sunscreens, anti-aging care products