Ingredient
Citrulline
What is Citrulline?
Citrulline is a naturally occurring amino acid found in some foods and also produced naturally within the body. It is commonly sourced from watermelon but can also be manufactured synthetically.
Citrulline is often included in supplements and personal-care products for its potential to support cardiovascular health and enhance exercise performance by increasing nitric oxide production, which may improve blood flow. The scientific evidence on these health benefits is mixed, with some studies showing positive effects while others find little impact.
In personal-care products, citrulline might be used for its moisturizing properties due to its ability to promote increased circulation and hydration in the skin.
Commonly found in: dietary supplements, sports nutrition products, personal-care products, skin moisturizers
Benefits
- May improve blood flow and reduce blood pressure by increasing nitric oxide levels.
- Potentially enhances exercise performance and reduces muscle fatigue.
Citrulline is generally recognized as safe (GRAS) when used appropriately in foods and supplements.
Studies show mixed results on citrulline's effectiveness for enhancing exercise performance and cardiovascular health.
Citrulline is non-animal derived and is typically considered vegan.
Sources: Dietary Supplements
Scout's take
Citrulline is an amino acid used in skincare for its potential moisturizing properties. It may help improve skin hydration and elasticity. Its benefits in topical application are not well-established.
The case against
There are minimal risks, though it may cause irritation in very sensitive skin.
from the analysis of Eucerin Advanced Repair Lotion for Very Dry Skin BottleThe case for
Citrulline may help improve skin hydration and elasticity.
from the analysis of Eucerin Advanced Repair Lotion for Very Dry Skin BottleFound in 1 product
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