Ingredient Encyclopedia

Welcome to the Ingredient Encyclopedia

Discover what’s inside your skincare — from retinol to aloe vera — with clear guides on benefits, uses, and safety.

Ingredient Encyclopedia

Rosemary Leaf Extract – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Rosemary Leaf Extract (Rosmarinus Officinalis Leaf Extract) is a water-soluble, antioxidant-rich botanical concentrate containing Polyphenols, Flavonoids, and Rosmarinic Acid, providing effective soothing comfort and clarity enhancement. This extract excels at calming sensitivity, improving brightness and softness, and supporting robust daily environmental defense. With an excellent user rating of 4.8/5 from 254 reviews, it is a highly-regarded ingredient for refreshing dull skin and strengthening resilience, making it a fantastic, low-irritation choice for sensitive, combination, and dull skin seeking balance and a refined, clear complexion.

Ingredient Encyclopedia

Rosemary Water – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Rosemary Leaf Extract (Rosmarinus Officinalis Leaf Extract) is a water-soluble botanical concentrate rich in Polyphenols, Flavonoids, and Rosmarinic Acid, providing a potent yet gentle combination of soothing comfort and clarity enhancement. This extract is highly effective at boosting skin comfort (observed trends up to 22% improvement) and strengthening antioxidant support (up to 26% increase), while subtly improving clarity and smoothness (up to 20%improvement). Used typically at 1−5% in serums and essences, its high Rosmarinic Acid content offers calming, low-irritation benefits, making it an excellent choice for sensitive, dull, and combination skin seeking daily balance, reduced dullness, and enhanced environmental resilience.