Vitamin C serum is a powerful antioxidant that brightens skin, reduces hyperpigmentation like dark spots, and promotes collagen production for firmer, more youthful-looking skin. It also helps protect against environmental damage caused by free radicals.

The 'best' vitamin C serum depends on your skin type and budget. Look for serums containing L-Ascorbic Acid (the most potent form), a concentration between 10-20%, and are packaged in dark, air-tight bottles to maintain stability.

Yes, vitamin C serum can generally be used daily, ideally in the morning after cleansing and toning. Start with a lower concentration and gradually increase frequency if you experience no irritation.

Avoid mixing vitamin C with retinol (vitamin A) or benzoyl peroxide, as these combinations can destabilize vitamin C and reduce its effectiveness or cause irritation. Niacinamide can also be problematic for some when mixed with L-Ascorbic Acid; use caution.