Zinc Oxide: A physical sunscreen agent that protects the skin from both UVA and UVB rays. Zinc oxide is also used in skincare for its anti-inflammatory properties and its ability to soothe irritated skin, making it effective in treatments for acne and rosacea.

Zinc Pyrithione: An antifungal and antibacterial ingredient commonly used in dandruff shampoos and scalp treatments. It helps reduce scalp irritation, flakiness, and itching by targeting the microorganisms that cause dandruff.

Zits: A colloquial term for acne, particularly for pustules or papules that appear as raised, inflamed bumps on the skin. Zits are typically caused by clogged pores, bacteria, and excess oil production.

Xylitol: A humectant and moisturizing ingredient derived from plants like birch trees or corn (yes, it’s what is in sugar-free gum). In skincare, it helps to hydrate the skin by attracting and retaining water, improving the skin barrier, and supporting overall moisture balance. It’s gentle and suitable for most skin types.