Vegetable Glycerine

One of the most important and effective humectants in skincare, haircare, and cosmetic formulation.

It is simple, affordable, and extremely powerful when used correctly.

INCI: Glycerin

Origin: Vegetable-derived (soy, palm, coconut)

Form: Clear, colorless, viscous liquid

Solubility: Fully water-soluble

💧 Why glycerin is so effective

• Attracts & binds water into the stratum corneum
• Improves skin barrier function
• Reduces transepidermal water loss (TEWL)
• Smooths skin texture
• Enhances performance of other actives
• It works in all climates when properly balanced with emollients.

🧴 Common uses

• Toners & serums
• Creams & lotions
• Facial & body cleansers
• Shampoos & conditioners
• Soaps (transparent soaps especially)
• Masks & scrubs

Recommended usage rates

• Leave-on skincare: 2–5%
• Rinse-off products: 2–10%
• Hair care: 1–5%
• Soaps: 5–15%
• Note: Above ~5% in leave-on products can feel sticky unless balanced.

⚗️ Formulation notes (important)

• Add to water phase
• Stable across pH 3–10
• Compatible with almost all cosmetic ingredients
• High % may:
• Feel tacky
• Increase drying sensation in very dry air if not sealed
• 👉 Always pair with emollients/occlusives (oils, butters, silicones).

🛡️ Preservation & safety

• Glycerine is not a preservative
• Water-based formulas must be preserved
• Very safe, non-irritating
• Suitable for babies & sensitive skin

⚠️ Common mistakes

• Using too much in leave-on products
• Not sealing hydration with oils or creams
• Assuming glycerin preserves products (it doesn’t)