Uploaded August 2026 | Updated September 2026, 2 weeks ago
Dermatologist Dr. Dray breaks down the science behind topical vitamin C, including what vitamin C does for the skin, how it may help with wrinkles, collagen production, photoaging, dark spots, and hyperpigmentation, and whether a vitamin C serum is actually necessary for an effective skincare routine.
Vitamin C, also known as ascorbic acid, is a powerful antioxidant that can help neutralize free radicals generated by UV radiation, pollution, and other environmental exposures. It also plays an important role in collagen synthesis and may help reduce melanin production, making it an interesting ingredient for both anti-aging skincare and hyperpigmentation.
But how strong is the clinical evidence? And is vitamin C actually better than ingredients like tretinoin, retinoids, niacinamide, hydroquinone, or sunscreen?
Dr. Dray discusses the research, the limitations of vitamin C studies, the importance of formulation and stability, potential skin irritation, and whether expensive vitamin C serums are worth the money.
In this video:
0:00 Introduction
0:36 What does vitamin C actually do?
2:34 Vitamin C and collagen production
4:07 How good is the evidence for topical vitamin C?
5:30 Vitamin C vs. more established skincare ingredients
6:30 The sunscreen problem in vitamin C studies
8:37 Vitamin C for dark spots and hyperpigmentation
9:31 Vitamin C and vitamin E
10:17 Why vitamin C formulation and stability matter
13:43 Downsides of topical vitamin C: irritation and cost
16:04 Does anyone actually need vitamin C?
16:38 Final thoughts
Vitamin C for skin: the bottom line
Topical vitamin C is not a scam, but it is also not a mandatory step in everyone's skincare routine.
Clinical research supports potential benefits for photoaging, fine lines, wrinkles, skin texture, and hyperpigmentation, but the overall evidence base is still relatively limited. Studies use different concentrations, formulations, and delivery systems, making it difficult to determine exactly which vitamin C product or derivative is best.
Vitamin C can also be challenging to formulate because pure ascorbic acid is unstable, and higher concentrations may cause stinging, dryness, redness, or irritation.
For someone building an evidence-based skincare routine, Dr. Dray emphasizes prioritizing proven fundamentals, particularly daily sunscreen and, when appropriate, topical retinoids. Vitamin C can be a useful addition, but it does not need to be included simply because it is popular.
The video also discusses why dramatic before-and-after photos from vitamin C studies should be interpreted carefully, particularly when study participants are also instructed to use sunscreen consistently.
Key topics: vitamin C serum, vitamin C skincare, vitamin C for skin, ascorbic acid, topical vitamin C, vitamin C for wrinkles, vitamin C for dark spots, vitamin C for hyperpigmentation, vitamin C for anti-aging, vitamin C and collagen, vitamin C antioxidant, vitamin C vs retinol, vitamin C vs tretinoin, vitamin C vs niacinamide, vitamin C vs hydroquinone, vitamin C and sunscreen, best vitamin C serum, vitamin C irritation, vitamin C serum benefits, vitamin C serum side effects, does vitamin C actually work, dermatologist vitamin C review, evidence based skincare, anti-aging skincare, skincare ingredients.
Disclaimer: This video is for educational purposes and is not a substitute for individualized medical advice or treatment from a qualified healthcare professional.
FTC: This video is not sponsored. Links are commissionable, meaning I may earn commission from purchases made through links.
💜Shop my Amazon store https://o.bttn.io/0BwiPWFIZLG
💜Follow me on liketoknowit https://www.liketoknow.it/drdrayzday
💜Social media
Instagram @drdrayzday
Pinterest pinterest.com/drdrayzday
Facebook @DrDrayzDay
Twitter: @drdrayzday
Tiktok: @drdrayzday
Disclaimer: This video is not intended to provide diagnosis, treatment or medical advice. Content provided on this Youtube channel is for informational purposes only. Please consult with a physician or other healthcare professional regarding any medical or health related diagnosis or treatment options. Information on this Youtube channel should not be considered as a substitute for advice from a healthcare professional. The statements made about specific products throughout this video are not to diagnose, treat, cure or prevent disease.
Dermatologist Dr. Dray breaks down the science behind topical vitamin C, including what vitamin C does for the skin, how it may help with wrinkles, collagen production, photoaging, dark spots, and hyperpigmentation, and whether a vitamin C serum is actually necessary for an effective skincare routine.
Vitamin C, also known as ascorbic acid, is a powerful antioxidant that can help neutralize free radicals generated by UV radiation, pollution, and other environmental exposures. It also plays an important role in collagen synthesis and may help reduce melanin production, making it an interesting ingredient for both anti-aging skincare and hyperpigmentation.
But how strong is the clinical evidence? And is vitamin C actually better than ingredients like tretinoin, retinoids, niacinamide, hydroquinone, or sunscreen?
Dr. Dray discusses the research, the limitations of vitamin C studies, the importance of formulation and stability, potential skin irritation, and whether expensive vitamin C serums are worth the money.
In this video:
0:00 Introduction
0:36 What does vitamin C actually do?
2:34 Vitamin C and collagen production
4:07 How good is the evidence for topical vitamin C?
5:30 Vitamin C vs. more established skincare ingredients
6:30 The sunscreen problem in vitamin C studies
8:37 Vitamin C for dark spots and hyperpigmentation
9:31 Vitamin C and vitamin E
10:17 Why vitamin C formulation and stability matter
13:43 Downsides of topical vitamin C: irritation and cost
16:04 Does anyone actually need vitamin C?
16:38 Final thoughts
Vitamin C for skin: the bottom line
Topical vitamin C is not a scam, but it is also not a mandatory step in everyone's skincare routine.
Clinical research supports potential benefits for photoaging, fine lines, wrinkles, skin texture, and hyperpigmentation, but the overall evidence base is still relatively limited. Studies use different concentrations, formulations, and delivery systems, making it difficult to determine exactly which vitamin C product or derivative is best.
Vitamin C can also be challenging to formulate because pure ascorbic acid is unstable, and higher concentrations may cause stinging, dryness, redness, or irritation.
For someone building an evidence-based skincare routine, Dr. Dray emphasizes prioritizing proven fundamentals, particularly daily sunscreen and, when appropriate, topical retinoids. Vitamin C can be a useful addition, but it does not need to be included simply because it is popular.
The video also discusses why dramatic before-and-after photos from vitamin C studies should be interpreted carefully, particularly when study participants are also instructed to use sunscreen consistently.
Key topics: vitamin C serum, vitamin C skincare, vitamin C for skin, ascorbic acid, topical vitamin C, vitamin C for wrinkles, vitamin C for dark spots, vitamin C for hyperpigmentation, vitamin C for anti-aging, vitamin C and collagen, vitamin C antioxidant, vitamin C vs retinol, vitamin C vs tretinoin, vitamin C vs niacinamide, vitamin C vs hydroquinone, vitamin C and sunscreen, best vitamin C serum, vitamin C irritation, vitamin C serum benefits, vitamin C serum side effects, does vitamin C actually work, dermatologist vitamin C review, evidence based skincare, anti-aging skincare, skincare ingredients.
Disclaimer: This video is for educational purposes and is not a substitute for individualized medical advice or treatment from a qualified healthcare professional.
FTC: This video is not sponsored. Links are commissionable, meaning I may earn commission from purchases made through links.
💜Shop my Amazon store https://o.bttn.io/0BwiPWFIZLG
💜Follow me on liketoknowit https://www.liketoknow.it/drdrayzday
💜Social media
Instagram @drdrayzday
Pinterest pinterest.com/drdrayzday
Facebook @DrDrayzDay
Twitter: @drdrayzday
Tiktok: @drdrayzday
Disclaimer: This video is not intended to provide diagnosis, treatment or medical advice. Content provided on this Youtube channel is for informational purposes only. Please consult with a physician or other healthcare professional regarding any medical or health related diagnosis or treatment options. Information on this Youtube channel should not be considered as a substitute for advice from a healthcare professional. The statements made about specific products throughout this video are not to diagnose, treat, cure or prevent disease.
