Aphanizomenon Flosaquae Powder: 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 23, 2025
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All information on this page is verified using publicly available nomenclature standards and reference materials from The Personal Care Products Council (PCPC) and the European Commission's CosIng database. Our analyses are based on technical data from these sources to ensure accuracy and reliability.

What Is Aphanizomenon Flosaquae Powder?

Aphanizomenon Flosaquae Powder comes from Aphanizomenon flos-aquae, a freshwater blue-green alga most often harvested from lakes in the Pacific Northwest. The dried alga is rich in proteins, amino acids, vitamins and minerals that help support skin feel and look. Interest in this alga began in the 1970s when wellness brands explored lake-grown microalgae for their skin-loving nutrients. Over time formulators noticed that once the alga was finely milled into a uniform powder it blended well into creams, masks and washes, adding a silky touch.

The manufacturing process is straightforward. After careful harvesting the algae are rinsed to remove debris, then quickly dried at low heat to protect delicate compounds. The crisp flakes are ground into a fine greenish powder that disperses evenly in both water-based and oil-based systems. Because of its natural origin and gentle profile Aphanizomenon Flosaquae Powder appears in hydrating masks, daily moisturizers, foaming cleansers, anti-aging serums and gentle exfoliating blends.

Aphanizomenon Flosaquae Powder’s Cosmetic Benefits/Uses

Formulators choose this powder for several helpful roles within a product.

  • Skin Conditioning – supplies amino acids and vitamins that can soften skin surface and give a healthy, supple feel
  • Emollient – forms a light film that smooths rough patches and helps lock in moisture for comfortable, touchable skin
  • Cleansing – binds to impurities so they rinse away more easily leaving skin fresh without a tight after-feel
  • Foam Boosting – supports richer lather in cleansers allowing the formula to spread better and rinse off cleanly

Who Can Use Aphanizomenon Flosaquae Powder

This gentle alga-derived powder is generally well tolerated by most skin types, including dry, normal, combination and oily. Its light emollient film helps dry or mature skin hold moisture while the non-greasy feel works for oilier or acne-prone complexions. Sensitive skin usually does fine because the ingredient is free of fragrance and harsh solvents, though those with a known algae allergy should avoid it.

As a freshwater botanical raw material Aphanizomenon Flosaquae Powder is suitable for vegans and vegetarians. No animal-derived inputs are used during harvesting or processing and reputable suppliers follow cruelty-free standards.

Current safety data indicate no specific concerns for topical use during pregnancy or while breastfeeding. That said this is not medical advice and anyone who is pregnant or nursing should consult a healthcare professional before adding new skincare products, just to be safe.

The powder does not increase photosensitivity so there is no added risk of sunburn when using it. Regular sun protection is still recommended for overall skin health.

Potential Side Effects/Adverse Reactions

Individual responses to topical Aphanizomenon Flosaquae Powder can differ. The effects listed below are possible but uncommon when the ingredient is used at typical cosmetic levels.

  • Mild redness or irritation in people allergic to algae or with extremely reactive skin
  • Itching or transient stinging if applied to compromised skin such as open cuts or active eczema
  • Very slight clogging in rare cases for those highly prone to comedones when the ingredient is used in rich, occlusive formulas

If any discomfort, prolonged redness or other adverse reaction occurs discontinue use and seek advice from a medical professional.

Comedogenic Rating

Rating: 1/5. Aphanizomenon Flosaquae Powder is a lightweight plant-based powder that lays down only a thin breathable film so it is unlikely to trap oil or debris inside pores. It contains very little inherent oil and is typically used at modest levels which further lowers clogging risk. Formulas that pair it with heavy butters or waxes could nudge the rating higher but the ingredient itself remains low on the scale.

Most people prone to acne or breakouts should find it suitable.

As with any ingredient overall pore-clogging potential depends on the full formula, product texture and how often it is layered with other occlusive products.

Summary

Aphanizomenon Flosaquae Powder conditions skin, acts as a mild emollient, boosts foam in cleansers and helps lift away surface impurities. Its mix of proteins, amino acids and trace minerals supports a soft smooth feel while its fine particle size lets it disperse evenly in creams gels or washes.

Although it is not as mainstream as algae giants like spirulina or chlorella it has carved out a steady place in clean beauty masks and gentle daily cleansers thanks to its silky after-feel and easy compatibility with both water and oil phases.

Current data show it is safe for topical use with a very low risk of irritation or clogging for most skin types. Still, anytime you try a new product containing this alga-derived powder it is smart to do a quick patch test on a small area first just to be sure your skin agrees with it.

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