Arthrospira Extract
INCI: ARTHROSPIRA EXTRACT
Reviewed by Emma · Last updated 2 Jun 2026
A nutrient-rich cyanobacterium extract with antioxidant and skin-conditioning properties
Best For Skin Types
All
Addresses
Usage Frequency
Daily
What Is Arthrospira Extract?
Arthrospira extract is derived from Arthrospira platensis, commonly known as spirulina, a blue-green cyanobacterium rich in proteins, vitamins, minerals, and phytochemical compounds. In skincare formulations, it functions as a skin-conditioning agent, helping to support the skin's appearance and feel.
The extract contains phenolic compounds and flavonoids that contribute antioxidant activity, which may help the skin resist environmental stressors. These compounds are obtained through extraction processes that isolate the bioactive constituents from the whole organism.
How It Works
Arthrospira extract works primarily through its antioxidant compounds, which neutralise free radicals that accumulate in skin from UV exposure and environmental pollution. These free radicals can contribute to premature ageing and skin damage, so antioxidant support helps minimise this process.
The extract also contains compounds that may modulate inflammatory pathways in the skin. When applied topically as part of a formulation, these components help condition and strengthen the skin's outer layers, contributing to improved texture and resilience over time.
Clinical Evidence & References
Research indicates that spirulina extracts demonstrate notable antioxidant activity in laboratory assays, with ethanolic extracts showing particularly strong results across multiple antioxidant measurement methods. The extract also shows antimicrobial and anti-inflammatory properties in vitro, suggesting potential benefit for compromised or reactive skin.
Some evidence from animal studies suggests spirulina may offer photoprotective benefits against UVB-induced damage; however, human clinical trials are limited. Most existing research focuses on oral supplementation or extract efficacy in controlled laboratory conditions rather than topical application in finished skincare products. Further human studies would help clarify the ingredient's real-world efficacy at typical cosmetic concentrations.
How to Use
Arthrospira extract is typically incorporated into serums, moisturisers, and treatment masks. Since it functions as a conditioning ingredient rather than an active treatment, consistency of use will support cumulative benefits. It works well alongside other antioxidant ingredients and does not require any special application technique.
Safety & Precautions
Frequently Asked Questions
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