# When to Put on Vitamin C Serum?

**By Abdul Ahad** · 2025-08-18

📅 Last updated: May 2026

## **When to Put on [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) Serum — The Importance of Vitamin C in Skincare**

[Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) is one of the most beloved ingredients in skincare for its brightening, anti-aging, and antioxidant properties. It’s known for its ability to fade dark spots, protect skin from environmental damage, and boost collagen production. But when exactly should you apply [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) serum — morning or night? And how do you use it with other active ingredients?

### **When to Apply [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) Serum**

#### **1\. Morning is Best**

Most dermatologists recommend applying [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) serum in the morning. Here’s why: Antioxidant Protection — [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) neutralizes free radicals from UV rays and pollution, helping protect skin throughout the day. Brightening Throughout the Day — applying in the morning allows Vitamin C to work while you’re most exposed to environmental stressors. Synergy with SPF — [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) enhances effectiveness of sunscreen, offering extra protection against UV damage.

#### **2\. Can You Use Vitamin C at Night?**

Yes, you can use [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) at night too. Nighttime is when skin undergoes most of its repair and regeneration. Using [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) at night can help boost collagen production and repair damaged skin while you sleep. However, pairing it with [retinol](/blogs/ingredients/retinol-the-gold-standard-for-anti-aging-skin-care) or AHAs at night can cause irritation for sensitive skin.

#### **3\. How to Layer [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) Serum**

Apply on clean, dry skin before heavier products. Step 1: Cleanse skin. Step 2: Apply toner (if used). Step 3: Apply [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) serum. Step 4: Follow with moisturizer. Step 5: Apply SPF in the morning.

#### **4\. How Often Should You Apply?**

Once a day is enough for most people — either morning or night. Those with sensitive skin should start with every other day to build tolerance.

### **Best Serum with [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant)**

Millionaire Glow Serum by Dr Crazy Beauty is one of the best serums for brightening and evening skin tone. It combines [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant), [niacinamide](/blogs/ingredients/niacinamide-the-multitasking-skin-ingredient-you-need-in-your-routine), [hyaluronic acid](/blogs/ingredients/hyaluronic-acid-the-ultimate-hydration-ingredient-for-plump-glowing-skin), [salicylic acid](/blogs/ingredients/salicylic-acid-the-ultimate-acne-fighting-ingredient-for-clear-skin), [retinol](/blogs/ingredients/retinol-the-gold-standard-for-anti-aging-skin-care), and [peptides](/blogs/ingredients/peptides-the-anti-aging-powerhouses-that-keep-skin-firm-and-youthful) — perfect for brightening, hydrating, and improving skin texture.

Buy on Amazon: [Millionaire Glow Serum](https://www.amazon.com/dp/B0CTYTY682?tag=drcrazy0b-20) | [Millionaire Glow Serum](https://drcrazybeauty.com/products/millionaire-glow-serum)

### **FAQs**

Best time to use [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) serum is morning, before SPF. Use once or twice daily. Results visible in 2-4 weeks.

### **Reviews**

Dr. Sarah Williams: “Best time to apply [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) serum is morning. It pairs beautifully with SPF.” Anna K.: “My skin looks so much brighter since using it every morning.”

### **Conclusion**

Apply [Vitamin C](/blogs/ingredients/vitamin-c-for-your-skin-the-benefits-of-this-powerful-antioxidant) serum in the morning for maximum antioxidant protection and brightening benefits. Start your skincare journey today!

**Tags:** anti-aging serum, dr crazy beauty, glow serum, skincare routine, vitamin c serum

---

> Source: [Dr. Crazy](https://www.drcrazybeauty.com/blogs/learninglab/when-to-put-on-vitamin-c-serum)