MAC Faceglass™ Hydrating Skin Gloss. Application: apply as a primer to cleansed skin after skincare and before makeup. Gloss over makeup for a full-face glaze or in desired areas as a dewy highlight. Wear alone for a glass-skin finish. Apply generously all over body or to targeted areas (arms, chest) for a full glazed glow. Skin type: suitable for all skin types. Benefits: a lightweight face gloss and dewy primer for a glass-skin look, with 24 hour hydration. 30ml.