The Benefits of Using Vitamin C in Your Skincare Routine

Posted by Azadeh Shirazi MD on

Vitamin C remains a leading ingredient in skincare, frequently appearing on the top 5 trending lists for the past three years. You may already have it in your skincare arsenal, but if you're curious about why this ingredient is so revered, how to incorporate it properly, and how to avoid potential issues, read on.

What is Vitamin C in Skincare?

Vitamin C, also known as l-ascorbic acid, is a powerful antioxidant known for its skin-brightening, firming, and lightening effects. Essential for collagen production, vitamin C is a key player in anti-aging routines. While it's renowned for its ability to enhance skin radiance, it also offers a range of other benefits, including:

- Shielding the skin from free radical damage

- Boosting the effectiveness of sunscreen against UV rays

- Lightening hyperpigmentation and acne scars

- Minimizing signs of aging by promoting collagen synthesis

Who Should Use Vitamin C?

Vitamin C is an excellent choice if you're looking for a radiant complexion and want to enhance your skincare regimen. It's a versatile ingredient suitable for those with combination, oily, or dry skin types. It is especially beneficial for individuals dealing with:

- Acne scars

- Melasma

- Sun spots or dark spots

- Signs of aging like fine lines and wrinkles

- Decreased collagen production

Who Should Avoid Vitamin C?

Those using retinoids should approach vitamin C with caution as it may cause skin irritation. People with sensitive skin may also experience irritation from ascorbic acid and should perform a patch test before applying it broadly. Newer forms of vitamin C, such as tetrahexyldecyl ascorbate, offer a more stable and less irritating alternative for those who find ascorbic acid too harsh.

When to Use Vitamin C

Vitamin C is most effective when applied in the morning after cleansing. It helps combat free radical damage and brightens the skin throughout the day. I follow a straightforward skincare routine: cleanse, treat, protect. Since l-ascorbic acid is typically found in serum form, apply it during the treatment phase of your routine, followed by an SPF. If you're not using other active ingredients, you can also apply it in the evening for optimal results.

When to Avoid Vitamin C

Despite its many benefits, vitamin C may not always be appropriate, especially when combined with other ingredients. Avoid using it alongside:

- Benzoyl Peroxide

- Retinols

- Additional Acids (such as Glycolic, Salicylic, Citric, etc.)

Combining vitamin C with these actives can lead to skin irritation, redness, and dryness, particularly for sensitive skin types. It’s advisable to simplify your routine: use Vitamin C in the morning and save other actives like retinol or exfoliants for the evening.

I created an in depth video on Vitamin C check it out below. 

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MEET THE DOCTOR BEHIND IT ALL

Dr. Azadeh Shirazi, MD is a Board-Certified Dermatologist.

Specializing in medical, surgical, and cosmetic dermatology, Dr. Shirazi received her undergraduate and medical degrees from the University Of Kentucky College of Medicine. After doing a Research Fellowship at Harvard Medical School at the Wellman Center for Photomedicine, she completed her residency training in Dermatology and Cutaneous Surgery at the prestigious Mayo Clinic in addition to completing her training in dermatology and cosmetic surgery at the University of California San Diego.

She has received multiple research scholarships from iconic institutions including Harvard University and the University Of Texas Southwestern Medical Center and has several peer-reviewed publications to her name.