Chlorella Sp. Ksf0059 Extract: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 24, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Chlorella Sp. Ksf0059 Extract?

Chlorella Sp. Ksf0059 Extract comes from a specific strain of the freshwater microalga Chlorella that is grown under controlled culture conditions to keep it clean and rich in skin friendly compounds. The algae’s cells are naturally packed with proteins, amino acids, vitamins A, B and C, minerals, chlorophyll and carotenoids, all of which contribute to its appeal in beauty formulations. Interest in microalgae for skincare began in the 1970s when scientists noticed their high nutrient content and antioxidant potential, and over the years brands have refined ways to capture these benefits for topical use. To create the extract, the algae are harvested, the tough cell walls are carefully broken to release the inner actives, then the material is filtered and concentrated in a skin compatible solvent such as water or glycerin. The resulting fluid is stable, mild and easy to blend into cosmetic bases. You will most often spot Chlorella Sp. Ksf0059 Extract in hydrating masks, anti aging serums, daily moisturizers, city pollution defense creams and calming after sun gels.

Chlorella Sp. Ksf0059 Extract’s Cosmetic Benefits/Uses

This microalgae extract plays more than one role in a formula, offering both nurturing and protective qualities for the skin.

  • Skin Conditioning: The proteins, sugars and vitamins in the extract help attract and hold moisture on the surface of the skin, leaving it softer, smoother and more supple. Regular use can improve overall tone and support a healthy looking complexion.
  • Skin Protecting: Natural antioxidants such as chlorophyll and carotenoids help neutralize free radicals produced by UV exposure and pollution. By limiting this environmental stress, the extract supports the skin’s barrier and may slow the appearance of premature aging signs.

Who Can Use Chlorella Sp. Ksf0059 Extract

This marine plant extract is gentle enough for most skin types. Dry, normal or combination skin benefits from its water binding sugars while oily and acne prone complexions appreciate its lightweight, non greasy feel. Sensitive skin generally tolerates it well thanks to the absence of fragrance and harsh solvents, though anyone with a known algae allergy should skip it.

Because the ingredient is sourced from a cultivated microalga and involves no animal by products, it aligns with vegan and vegetarian lifestyles. It is also commonly processed in glycerin or water, both plant derived mediums.

Current data shows no issues for topical use during pregnancy or while breastfeeding. Still, this is not medical advice and pregnant or nursing individuals should have their doctor review any skincare routine for added peace of mind.

Chlorella Sp. Ksf0059 Extract does not induce photosensitivity, so it will not make skin more prone to sunburn. As always, daytime sunscreen remains essential for overall skin health.

Potential Side Effects/Adverse Reactions

Reactions to topically applied Chlorella Sp. Ksf0059 Extract vary from person to person. The points below list potential side effects, yet most users experience none when the ingredient is correctly formulated and used as directed.

  • Mild redness or flushing in individuals with extremely reactive skin
  • Itching or stinging sensation if applied to compromised or freshly exfoliated skin
  • Allergic contact dermatitis in the rare case of an algae specific allergy
  • Breakouts in very oily skin if the finished product contains comedogenic co-ingredients

If any of these reactions occur discontinue use and consult a healthcare professional or dermatologist.

Comedogenic Rating

Rating: 1/5 Chlorella Sp. Ksf0059 Extract is largely made up of water soluble proteins, sugars and antioxidants with very little oil content, so it does not tend to block pores. A rating of 1 reflects its low likelihood of causing congestion while acknowledging that finished products might pair it with heavier emollients. Overall it is considered suitable for acne prone or breakout prone skin.

Keep in mind that the comedogenic risk of any formula depends on the full ingredient list and personal skin response, not on a single extract.

Summary

Chlorella Sp. Ksf0059 Extract conditions skin by drawing and holding moisture with its natural proteins and sugars and protects skin by supplying antioxidants like chlorophyll and carotenoids that help neutralize environmental stress. Though still a niche ingredient compared with big name botanicals, interest in microalgae is growing as brands look for eco conscious and nutrient rich actives.

Topically the extract is regarded as very safe with a low rate of irritation or allergy. As with any new skincare product a short patch test is smart to confirm personal compatibility before applying it widely.

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