Magnesium Aspartate



Magnesium Aspartate at a glance

  • A magnesium salt of amino acid aspartic acid
  • Helps maintain proteins in skin’s outermost layers
  • Hydrates and helps to soften skin
  • Sometimes used in a blend with amino acids and gluconates (a by-product of glucose)

Magnesium Aspartate description

The magnesium salt of aspartic acid, an acidic amino acid that plays a role in maintaining proteins in skin. In cosmetics, magnesium aspartate acts as hydrating and softening ingredient. It may be animal-derived or manufactured in a lab (Paula’s Choice uses the latter). Magnesium aspartate is considered safe as used in cosmetics, is non-irritating and bioavailable to skin. Usage levels typically go between 0.5–1%, but lower amounts may be used when the ingredient is part of a blend with other amino acids and glucose-derived ingredients known as gluconates.

Magnesium Aspartate references

  • Nutrients, September 2015, pages 8,199-8,226
  • f

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings


Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.


Necessary to improve a formula's texture, stability, or penetration.


Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.


There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.


May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.


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Not rated

We have not yet rated this ingredient because we have not had a chance to review the research on it.