mixsoon Vitamin C 20 Serum - 20% Stabilized Vitamin C, 10ml Travel Glass Bottle, Brightening + Niacinamide

mixsoon Vitamin C 20 Serum is a lightweight, 10ml Korean serum formulated with 20% stabilized vitamin C derivatives plus niacinamide and glutathione to brighten and even skin tone without a sticky finish.

This concentrated serum combines a high level of stabilized vitamin C derivatives with supporting antioxidants to help the skin appear more radiant and balanced. The 10ml glass bottle is travel-friendly and designed for daily layering under moisturizers and sunscreen. Dermatologist-tested for gentleness, the formula targets dullness and unevenness while keeping a fast-absorbing, non-greasy texture suitable for many skin routines.

How does mixsoon Vitamin C 20 Serum fit into a daily skincare routine?

Apply this serum after cleansing and toning, before heavier creams and sunscreen. Because it absorbs quickly and isn’t sticky, it layers well with hydrators and makeup. Start with a small amount and increase as tolerated to assess skin sensitivity.

• Use 1–2 drops for first-time application, moving to 3–4 drops for full-face coverage.
• Apply in the morning under SPF and at night under a moisturizer.
• Allow 30–60 seconds to absorb before following with other products.

What active ingredients are in the formula and what do they do?

The serum centers on 20% stabilized vitamin C derivatives for brightness and antioxidant support, paired with niacinamide and glutathione to help refine tone and texture. The combination is chosen to support a smoother-looking complexion while remaining lightweight and non-oily.

• 20% stabilized vitamin C derivatives: designed for antioxidant activity and visible brightening.
• Niacinamide: helps to even skin tone and improve surface texture.
• Glutathione: included as a complementary antioxidant to support overall radiance.

Is this serum suitable for sensitive or reactive skin?

mixsoon reports dermatologist testing that found the formula clinically gentle, but sensitivity varies by individual. Patch testing and gradual introduction are recommended for those with reactive skin or who are new to high-concentration vitamin C.

• Patch test behind the ear or inner forearm for 48 hours before full-face use.
• Begin using every other day, then increase frequency as tolerated.
• Stop use and consult a professional if irritation occurs.

How quickly will I notice changes, and how should I store it?

Visible changes in brightness and overall evenness can vary; many users see gradual improvement over several weeks of consistent use. Because vitamin C derivatives are sensitive to light and air, keep the product capped, stored upright in a cool, dry place, and use within the recommended period after opening.

• Allow 4–12 weeks for progressive improvement with regular use.
• Store away from direct sunlight and heat to preserve potency.
• Replace within the product’s indicated shelf life after opening.

Who is this for: mixsoon Vitamin C 20 Serum is aimed at people seeking a potent, fast-absorbing brightness serum that layers easily in everyday routines — suitable for those wanting to address dullness and uneven tone without heavy or sticky textures. It is a compact, travel-ready option for skin types tolerating vitamin C derivatives; those with highly reactive skin should introduce it slowly and consult a dermatologist if unsure.

Ingredients

Water/Aqua, Ascorbic Acid, Propanediol, Alcoh ol Denat., Betaine, 1,2-Hexanediol, 3-O-Ethyl Ascorbic Acid, Sodium Citrate, Tromethamine, Caffeic Acid, Glutathione, Hydroxypropyl Meth ylcellulose, Gluconolactone, Glucosylrutin, Ade nosine, Butylene Glycol, Coptis Japonica Extract, Ferulic Acid, Niacinamide, Isoquercitrin