Cholesterol

What it does

Cholesterol is a key structural component of the skin's stratum corneum lipid matrix, working alongside ceramides and fatty acids to maintain barrier function. It reduces transepidermal water loss (TEWL) and improves skin hydration. In cosmetics, it acts as an emollient and barrier-repairing ingredient.

Benefits

• Strengthens skin barrier integrity
• Reduces water loss and improves hydration
• Supports ceramide efficacy in formulations
• Non-irritating and well-tolerated by most skin types
• Helps reduce sensitivity and inflammation

Who it suits

• Dry skin
• Sensitive skin
• Compromised or damaged barrier
• Eczema-prone skin
• All skin types

How to use

Use in moisturizers, barrier-repair creams, and serums targeting sensitivity or dryness. Typically included in formulations at 0.5–2% alongside ceramides and fatty acids for synergistic effect.

Pairs well with

Ceramides, Fatty acids, Hyaluronic acid, Glycerin

Be careful pairing with

none notable

Safety & cautions

Cholesterol is naturally present in skin and considered safe at typical cosmetic concentrations (0.5–2%). No known sensitizers or irritants; well-established safety profile in dermatology.

Educational information, not medical advice. Concentration and formulation change how an ingredient behaves.