Glycerin
INCI Name: Glycerin (Glycerol)
Formulation Considerations
Glycerin is soluble in water. Its versatility makes it easy to formulate.
Usage
Glycerin can be used in conjunction with other ingredients. It is known to enhance the skin barrier but has also been shown to enhance skin penetration of some other ingredients.
Glycerin in Skincare Formulations
Glycerin is one of the most well-researched and widely used humectants, known for intense hydration and skin barrier support.
Formulation Considerations
Glycerin is a powerful humectant capable of attracting and retaining up to 1000 times its weight in water, ensuring that the skin stays hydrated. Additionally, it is effective across a wide pH range of 3 to 10.
📌 Ideal for: Moisturizers, serums, body lotions, and cleansers.
Usage Considerations
Glycerin helps prevent dryness and transepidermal water loss (TEWL) while reinforcing the skin's moisture barrier to combat dehydration. Although it may feel sticky at higher concentrations, it is most effective for hydration at levels of 2–5%. Concentrations above 5% can become tacky unless accompanied by other humectants to balance the texture.
Best Ingredients to Pair with Glycerin
Glycerin plays a vital role in barrier repair and is considered one of the most effective humectant ingredients. It's affordable, non-allergenic, and helps the skin retain moisture for more than 24 hours.
📌 Best for: Hydrating creams, cleansers, and soothing masks.
Ingredients to Avoid Pairing with Glycerin
Avoid combining Glycerin with High-Concentration Alcohols, as it Can counteract hydration and cause dryness.
PROS
Glycerin plays a vital role in barrier repair and is considered one of the most effective humectant ingredients. It's affordable, non-allergenic, and helps the skin retain moisture for more than 24 hours.
CONS
Feel sticky in high consentrations
Formulations made with this Ingredient:
Usage Rate
1 - 40%
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Applications:
Haircare, Skincare, Lipsticks and Foundations
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Appearance:
Clear colorless diol
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Solubility:
Soluble in Water
Melting point:
N/A
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Product type:
Humectant
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PRODUCTS
Creams, Lotions, Serums, Hair Products
​pH:​
Most stable at pH ~6
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