Spirulina Platensis Extract is a blue-green microalgae extract rich in proteins, phycocyanin, vitamins, and antioxidants used in skincare for its antioxidant, soothing, and skin-conditioning properties. It is generally well tolerated topically and may help support skin barrier function and reduce oxidative stress.
| Reported effect | How often | Notes |
|---|---|---|
| Allergic contact dermatitis | Rare | Localized redness, itching, or rash in sensitized individuals. |
| Skin irritation | Uncommon | Mild transient stinging or redness, particularly on sensitive or compromised skin. |
| Hypersensitivity reaction | Very rare | More pronounced reactions possible in those with algae or seafood-related allergies. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.