What Is Citrulline?

Learn about the skin conditioning characteristics of Citrulline and its usage in personal care products.

What Is Citrulline? Brandon Jones / IngredientReviewer

Last Updated: October 2, 2024

Written by Brandon Jones

What Is Citrulline?

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In simpler terms, Citrulline is a type of amino acid that is naturally found in watermelon juice. It's made by combining other substances in the body and plays an important role in a process called the urea cycle. When used in cosmetics, it helps condition the skin. In medicine, it's classified as a hepatoprotective agent and diuretic.

What is the purpose of Citrulline in personal care products? It is used for its skin conditioning characteristics. Citrulline moisturizes and strengthens skin.

Names and identifiers that we found for this substance include: Citrulline, δ-Ureidonorvaline, N~5~-Carbamoyl-L-ornithine, L-(+)-Citrulline, Nδ-Carbamylornithine, α-Amino-δ-ureidovaleric acid, and N5-(Aminocarbonyl)-L-ornithine.

What Are Skin Conditioning Ingredients?

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Citrulline has skin conditioning characteristics.

Skin conditioning ingredients improve the texture, feel, and overall appearance of the skin, helping to avoid harmful effects from external factors. Skin conditioning ingredients moisturize the skin and strengthen its natural barrier function to help protect it from damage caused by harsh weather and sunlight. Some skin conditioning ingredients are anti-inflammatory and can help reduce redness and irritated skin.

Safety

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Remember, always read and follow the instructions provided on product labels carefully. If you have any questions or concerns about using a product containing various ingredients, consult with your doctor or healthcare provider before use.