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This ingredient is a ferment derived from the bacterium Streptococcus thermophilus. In skincare, ferments are often used for their potential to condition the skin, support the microbiome, and provide antioxidant benefits.
No specific concern data available
Safety summary
Generally considered safe for cosmetic use. As a fermented ingredient, it is typically well-tolerated, but individuals with very sensitive skin should patch test.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.