Laminaria Ochroleuca Extract


Plant extracts

Laminaria Ochroleuca Extract at a glance

  • Type of kelp that helps soothe skin and offers hydration-enhancing properties
  • Can play a role in reinforcing skin’s barrier and warding off environmental stressors
  • Offers anti-ageing benefits, partly due to antioxidant content
  • Researchers note that this ingredient is particularly useful for those prone to sensitive skin

Laminaria Ochroleuca Extract description

_Laminaria ochroleuca_ extract is the Latin name for a species of kelp, also sometimes referred to as brown seaweed or brown algae. Applied topically, it helps soothe skin and, like all forms of seaweed, _Laminaria ochroleuca_ extract has some amount of moisture-binding properties. Researchers note that this ingredient is particularly useful for those prone to sensitive skin. It can play a role in reinforcing skin’s barrier and thus, can be used to help ease the negative effects environmental aggressors have on skin. It is believed that _Laminaria ochroleuca_ extract’s lipid content is partially responsible for this improvement. It’s also been shown to improve the content of skin’s surface lipids, which in turn builds a stronger barrier. This extract offers antioxidant properties, which contribute to anti-ageing benefits for skin. Primary antioxidants in this type of algae include zeaxanthin, β-carotene, chlorophyll, and several epicatechin compounds whish also play a role in reducing signs of sensitivity. _Laminaria ochroleuca_ extract was assessed for safety by the Cosmetic Ingredient Review Expert Panel in 2019. Their report surveyed 54 personal care products containing 0.000024-0.63% Laminaria ochroleuca extract, where it was determined to be “safe as used in cosmetics in the present practices of use.”

Laminaria Ochroleuca Extract references

  • Marine Drugs, August 2021, pages 1-16
  • Journal of Applied Phycology, January 2020, pages 1,455-1,465
  • Cosmetic Ingredient Review, October 2019, pages 1074
  • Journal of the European Academy of Dermatology and Venereology, September 2007, pages 1,124-1,125
  • Biomedical Chromotography, April 2004, pages 183-190

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