What should you know about The Inkey List Vitamin C?

Vitamin C products are applied to the skin rather than taken as a supplement. They are commonly used to support a more even-looking complexion and to complement daily sun protection. Results depend on the formula, regular use, skin sensitivity, and the concern being treated. A serum cannot replace sunscreen or remove an established mark immediately.

L-ascorbic acid is a form of vitamin C. Some people notice stinging, dryness, redness, or peeling, especially when their skin barrier is already irritated. Dark or opaque packaging and sensible storage can help protect a vitamin C formula from light and air, but follow the product label for handling.

Patch test on a small area first. Apply a thin layer to clean, dry skin, then follow with moisturiser and broad-spectrum sunscreen during the day. Start on alternate days if your skin is reactive, and increase only if comfortable. Keep the product away from the eyes and broken skin.

Avoid layering it at the same time with several potentially irritating products, such as strong exfoliating acids or retinoids, until you know how your skin responds. Stop using it if burning or marked redness develops. For a broader explanation of this ingredient, see [Vitamin C Serum](/materials/vitamin-c-serum/).

Contact a clinician if swelling, blistering, intense burning, hives, or persistent inflammation follows application. Arrange a skin assessment when uneven pigmentation changes quickly, bleeds, crusts, or has an unclear cause; a cosmetic serum should not delay diagnosis.

Ask whether vitamin C suits your current skin condition, which strength and schedule fit your sensitivity, and how to combine it with prescribed creams, exfoliants, or retinoids. Mention pregnancy, eczema, allergies, and any history of prolonged dark marks after irritation.