Medicube Deep Vita C Glutathione Brightening Mask 27 ml – sheet mask for a dull complexion and signs of fatigue

Key features

• contains glutathione (98% purity raw material according to the manufacturer) high on the INCI list;
• three forms of vitamin C: sodium ascorbyl phosphate, ascorbic acid and 3-O-ethyl ascorbic acid;
• niacinamide for a more even-looking complexion;
• vitamin B complex: thiamine, riboflavin, pyridoxine, biotin, folic acid and cyanocobalamin;
• ceramide NP, sodium hyaluronate and panthenol for hydration and barrier support;
• creamy essence with a cooling effect;
• designed for a dull complexion, dark spots and signs of fatigue;
• the mask is left on for 10–20 minutes;
• the pack contains 1 sheet mask with 27 ml of essence.

Who is it for?

• skin with a dull, uneven complexion lacking radiance;
• skin with dark spots and post-blemish marks;
• tired skin showing signs of lack of sleep and stress;
• people who find classic vitamin C serums uncomfortable;
• all skin types, with a patch test for sensitive skin.

How to use

1. Cleanse the face and apply toner.
2. Open the sachet, unfold the mask and adjust it to the contours of the face, avoiding the eye and lip area.
3. Leave on for 10 to 20 minutes.
4. Remove the mask and gently pat the remaining essence into the skin until absorbed, without rinsing.
5. Apply a serum or moisturizer if needed.
6. Use 2–3 times a week. For sensitive skin, start with once a week for the first two weeks.

How to fit it into your routine

Morning: Cleansing, toner, mask for 10–20 minutes as makeup prep, patting in the essence, a light cream and mandatory SPF protection.

Evening: Cleansing, toner, mask for 10–20 minutes, patting in the essence and a moisturizer. Skip retinoids and acid exfoliants that evening.

Important notes

• for external use only; the mask is for single use;
• patch test on a small area of skin before first use;
• the formula contains fragrance, a cooling agent and traces of retinol;
• do not combine on the same evening with retinoids, AHA/BHA exfoliants or other strong vitamin C serums;
• avoid the eye and lip area; do not apply to damaged or irritated skin;
• if stinging or redness occurs, remove the mask and rinse the face; reduce further use to once a week;
• use SPF protection regularly while using vitamin C products;
• store in a cool place or in the fridge, protected from sunlight and out of reach of children.

Pharmacist's advice

Vitamin C is sensitive to heat and light, so store the mask in a cool place, and in the fridge in summer. A chilled mask is also more pleasant for tired skin and reduces the feeling of puffiness.

For a more visible effect on a dull and uneven complexion, use the mask regularly, 2–3 times a week for several weeks, not just occasionally. A single use mainly provides refreshment and hydration.

If your skin is reactive, use the mask once a week for the first two weeks. Skip retinoids and acids on those evenings; a simple moisturizer after the mask is enough.

Brightening products only make sense with consistent daily sun protection of SPF 30 or higher, because UV radiation directly promotes the formation of new spots.

Ljubica Barbulović, MPharm

Frequently asked questions

What does 98% glutathione mean?

The manufacturer states that the glutathione raw material used is 98% pure. This refers to the purity of the ingredient, not its concentration in the essence.

How long should the mask be left on?

10 to 20 minutes, after which the remaining essence is patted into the skin.

How often can it be used?

2–3 times a week. For sensitive skin, start with once a week for the first two weeks.

Can it be used with a vitamin C serum?

Not on the same evening, as the mask already contains three forms of vitamin C. You can use the serum in the morning and the mask in the evening or on other days.

Does the mask contain retinol?

Retinol is at the very end of the INCI list, so it is present in traces. Combining it with other retinoids on the same evening is still not recommended.

How should the mask be stored?

In a cool place or in the fridge, protected from light, so that the vitamin C remains stable.