Potassium Aspartate
A potassium salt of aspartic acid. It supports hydration and joins a recovery complex. Well tolerated.
Evidence by route
Topical application
An amino acid salt that supports hydration. Safe.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Potassium aspartate (INCI: Potassium Aspartate) is the potassium salt of aspartic acid. It supplies soluble potassium to a formula and usually appears in hydrating and restorative complexes as a mineral cofactor, often alongside its magnesium version. As an active it plays a supporting role. It helps round out the formula and the feel of skin, but it has no proven effect on its own; its value is in the blend. On a label it should not be read as a decisive ingredient. Topically it is not systemically relevant, so it can be used during pregnancy and breastfeeding without concern. Tolerance is high, with low irritation and allergy potential, suitable for sensitive skin. It is not comedogenic at usual concentrations.
Frequently asked questions
Is Potassium Aspartate safe during pregnancy?
Potassium Aspartate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Potassium Aspartate for?
Potassium Aspartate suits: normal, dry, combination, oily, sensitive.
What is Potassium Aspartate and what does it do in cosmetics?
A potassium salt of aspartic acid.
What's the INCI name for Potassium Aspartate?
The INCI name is Potassium Aspartate.
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Ingredients in the same category
Potassium Hyaluronate, Potassium Lactate, Potassium PCA, PPG-15 Stearyl Ether, Xylitol, Cetyl Esters, Glycoproteins, Laminaria Digitata Extract
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