Niacinamide vs Vitamin C: Which Ingredient Works Better for Hyperpigmentation?

When it comes to treating hyperpigmentation, two skincare heavyweights often take the crown for their ability to brighten the skin: Niacinamide and Vitamin C. According to the National Cancer Institute, hyperpigmentation is a skin condition in which patches of skin are darker than the surrounding skin. It occurs when special cells in the skin produce too much of the pigment melanin. It may be caused by skin injury or inflammation, sun damage, abnormal skin growth, hormone changes, pregnancy, or other medical conditions.Both ingredients are celebrated for their skin-brightening abilities, but which reigns supreme? Let’s break it down. What is Niacinamide? Niacinamide, a form of vitamin B3, is like that reliable friend who always shows up on time and never overpromises. It works methodically by targeting dark spots, uneven skin tone, and inflammation without causing irritation. How Does Niacinamide Work? At its core, niacinamide regulates enzymatic activity and cell homeostasis, helping the skin repair itself from within. One of its greatest strengths is its ability to inhibit melanosome transfer, meaning it stops excess pigment from moving to the skin’s surface. This is what makes it a top ingredient for preventing and fading hyperpigmentation.But niacinamide doesn’t stop there. It’s also an antioxidant that neutralises free radicals and reduces oxidative stress caused by UV exposure and pollution. Unlike some harsh brightening agents, it plays well with most other skincare ingredients. READ ALSO: The 7 Best Niacinamide Toners for Skin Brightening and Oil Control Niacinamide’s Skin Benefits:1. Fades hyperpigmentation by slowing pigment transfer2. Strengthens the skin barrier by keeping it resilient.3. Reduces redness and inflammation.4. Regulates oil production.5. Boosts ceramide production and improves hydration levels.One study found that a 5% niacinamide formulation significantly reduced hyperpigmentation after just two weeks. And because it’s non-irritating, even those with reactive skin can use it daily without worry. Here Are Some Great Niacinamide Products To Try: 1. 25PSKYN Liqueur Best for: Dull skin, hyperpigmentation, and premature ageingThis multi-functional serum uses 5% niacinamide with other powerful antioxidants like beta-carotene, beta-arbutin, and superoxide dismutase to combat hyperpigmentation, fine lines, and environmental damage respectively. It’s also made with hemp-derived cannabidiol and honey to soothe irritation and support skin repair. In addition, the presence of N-Acetyl Glucosamine works synergistically with niacinamide for a brighter complexion. Price: ₦39,999. Where To Buy: Shop Hermosamart. 2. Good Molecules Niacinamide Brightening Toner Best for: Hydration, brightening, and reducing rednessThis toner is a gentle and effective way to incorporate niacinamide into your routine. It contains 3% niacinamide, arbutin, and licorice root extract to improve skin tone without irritation. It has a non-sticky, watery formula that absorbs well into the skin. And it contains hyaluronic acid for added hydration. Price: $13.99. Where To Buy: Shop Amazon. 3. Numbuzin No. 5 Niacin Concentrated Pads Best for: Convenience, hydration, and mild exfoliationToner pads have become a trend in K-beauty, and these are made with niacinamide, tranexamic acid, and ascorbic acid for brightening and evening out skin tone. Use them as an easy toner step or place them on targeted areas as a DIY sheet mask. It helps to refine skin texture and improve dullness. Price: $18.20. Where To Buy: Shop Amazon. What is Vitamin C? If niacinamide is the reliable workhorse, vitamin C is the showstopper. It’s the ingredient that skincare lovers turn to for instant luminosity. But does it outshine niacinamide when it comes to hyperpigmentation? How Does Vitamin C Work? Vitamin C (ascorbic acid) is a potent antioxidant that fights oxidative stress while inhibiting tyrosinase, the enzyme responsible for melanin production. Unlike niacinamide, which slows pigment transfer, vitamin C directly reduces melanin synthesis and tackles dark spots at the root.However, vitamin C has a bit of a diva personality. It’s unstable meaning it oxidises quickly when exposed to air and light and loses effectiveness. It also requires an optimal pH (around 3.5) to penetrate the skin, which can irritate some, especially those with sensitive or compromised skin barriers. READ ALSO: Glow on a Budget: The Best Vitamin C Serums Under ₦20,000 Vitamin C’s Skin Benefits: 1. Inhibits melanin production by fading dark spots over time. 2. Boosts collagen synthesis by making skin firmer and bouncier. 3. Neutralises free radicals and prevents premature aging.4. Improves overall skin radiance.5. Increases sun protection when used alongside SPF.A clinical study showed that a 20% vitamin C lotion significantly improved skin tone, elasticity, and radiance in just four weeks. However, those with sensitive skin may experience tingling, redness, or dryness, especially at higher concentrations. Here Are Some Great Vitamin C Products To Try: 1. Medicube Deep Vitamin C Capsule Cream