TEATREE CALMING HYDRA SERUM 1.35OZ. Benefits: Calms sensitive, easily irritated skin. Replenishes moisture deep into the skin. Helps control excess oil for balanced skin. Key Ingredients: Tea Tree (19,900ppm): soothe redness, calm irritation, and help manage blemish-prone skin. Hyaluronic Acid (2,800ppm): deeply hydrates and restores skin moisture. Zinc PCA: help regulate excess sebum and maintain a balanced complexion. Research Results: Tested and proven suitable for acne-prone skin (non-comedogenic).. Proven to improve hydration through 20 layers of the skin.. Proven to soothe skin irritation caused by external stimuli..