What Is Euphausia Superba Oil?
Euphausia superba oil, better known as krill oil, is extracted from Antarctic krill, a small shrimp-like crustacean. The oil is naturally rich in omega-3 fatty acids such as EPA and DHA that are bound to phospholipids, along with antioxidants like astaxanthin that give it a reddish hue.
While krill oil has long been harvested for dietary supplements, formulators began exploring its topical use once studies showed its fatty acids could support the skin’s natural barrier. Over the past decade, refinements in low-heat extraction and rapid processing aboard fishing vessels have helped preserve its delicate lipids, making high-quality oil available for cosmetic labs.
The production process typically involves sustainably caught krill, which are quickly processed to separate the oil from proteins and chitin. The crude oil is then filtered, deodorized and stabilized with natural antioxidants to ensure it remains fresh when blended into creams or serums.
Today you will find Euphausia superba oil in moisturizers, anti-aging creams, overnight masks, lip treatments and soothing balms where its lipid profile can improve softness and elasticity.
Euphausia Superba Oil’s Cosmetic Benefits/Uses
In skin care formulations Euphausia superba oil serves one main purpose.
Skin conditioning: Its phospholipid-bound omega-3s blend easily with the skin’s own lipids, enhancing the moisture barrier, reducing transepidermal water loss and leaving the surface feeling smooth and supple. The natural antioxidant astaxanthin also helps protect the formula and the skin from free radical stress, which can support a healthier, more even-looking complexion.
Who Can Use Euphausia Superba Oil
Krill oil works well for normal, dry, combination and mature skin because its fatty acids help lock in moisture. Sensitive skin often tolerates it too thanks to its calming antioxidant content. People with very oily or easily congested skin might find the texture a bit rich and may prefer lighter ingredients.
The oil comes from Antarctic krill, an animal source, so it is not suitable for vegans or vegetarians who avoid marine-derived ingredients.
Current research has not highlighted any specific risks for pregnant or breastfeeding women when the oil is used topically. Still, this is not medical advice and anyone who is expecting or nursing should check with a doctor before adding new products to their routine.
Euphausia superba oil does not increase sun sensitivity and there are no known interactions with common sunscreens. It has been deodorized but very slight marine notes can sometimes be detected in fragrance-free formulas.
Potential Side Effects/Adverse Reactions
Responses to topical Euphausia superba oil differ from person to person. The points below outline possible outcomes though most users will not experience them when the product is formulated and used correctly.
- Allergic reaction in individuals with shellfish allergy
- Mild redness or stinging on very sensitive skin
- Breakouts or folliculitis on acne-prone areas if the formula is too heavy
- Fishy odor if the product oxidizes over time
- Slight orange tint on light fabrics if the oil is applied heavily and not fully absorbed
If any of these effects occur stop using the product and seek advice from a healthcare professional.
Comedogenic Rating
Rating: 2 out of 5. Euphausia superba oil is light to medium in texture and its fatty acids are mostly polyunsaturated, so they sink into skin rather than sitting on top and clogging pores. Still, any rich oil can trap debris if applied heavily, which is why the rating is not a perfect zero. Those who are prone to acne or breakouts can usually use it in low-percentage, well-balanced formulas but may want to skip leave-on products that feel greasy.
The oil also contains a small amount of naturally occurring antioxidants that help stabilize it, reducing the risk of oxidized residues that can irritate pores.
Summary
Euphausia superba oil primarily conditions skin by delivering phospholipid-bound omega-3s that reinforce the moisture barrier, soften rough patches and offer a touch of antioxidant support. Its performance is gentle yet effective, which is why formulators add it to nourishing creams, lip balms and overnight treatments, though it remains less common than botanical oils because of its marine origin and higher sourcing cost.
Topically, the oil is considered safe for most skin types with shellfish allergy being the main caution. It has a low to moderate comedogenic potential and no evidence of phototoxicity. As with any new ingredient it is wise to do a small patch test when trying a product that contains Euphausia superba oil so you can be sure your skin agrees with it.