# COSRX The Vitamin C 13 Serum for dry skin

**Lovi Fit: High fit for dry skin.**
Dry Skin Fit: High · Effectiveness: High · Safety: Low Risk.

Page: https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/dry-skin

The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for the United States.

Brand: [COSRX](https://lovi.care/skincare/brands/cosrx)
Category: [Serums and treatments](https://lovi.care/skincare/best/serums)

This fit is calculated for the concerns frequently associated with dry skin: flakiness, tightness, dehydration, fine lines, and wrinkles. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

A great choice for dry skin; a few serums fit it even better.

## Why this fit

- Highly suitable for your dry skin as squalane and tocopherol provide emollient and antioxidant actions, supporting your skin barrier function and hydration.
- The serum offers excellent brightening and evening of skin tone due to the presence of ascorbic acid and 3-0-ethyl ascorbic acid, which also provide antioxidant and moisturizing effects beneficial for dry or flaky skin.
- The product is generally safe for your dry skin, with minimal risks of irritation from ascorbic acid and sodium sulfite.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/oily-skin): High
- [Dry skin](https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/dry-skin): High (this page)
- [Combination skin](https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/combination-skin): High
- [Sensitive skin](https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/sensitive-skin): High
- [Acne-prone skin](https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/dark-spots): Average
- [Mature skin](https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/mature-skin): High
- [Dry sensitive skin](https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/dry-sensitive-skin): High
- [Oily acne-prone skin](https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/oily-acne-prone-skin): High

## Key ingredients

Ascorbic Acid, Sodium Hyaluronate, Super Vitamin E, Glutathione, Niacinamide

## What the research says

- A topical serum containing vitamin C, vitamin E, and raspberry leaf cell culture extract improved skin color, elasticity, radiance, smoothness, scaliness, and wrinkles compared to the untreated contralateral side in fifty female volunteers. ([Journal of Cosmetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/31975502/))
- A multi-component dissolving microneedle patch loaded with glabridin, 3-O-ethyl-L-ascorbic acid, and tranexamic acid effectively reduced chloasma and age spots while demonstrating safety in clinical evaluation, alongside significant antioxidant, anti-tyrosinase, and melanin-reduction effects in vitro and in vivo. ([Polymers, 2023](https://pubmed.ncbi.nlm.nih.gov/37571190/))
- Topical application of 5% vitamin C cream significantly improved global clinical scores, increased skin microrelief density, and induced elastic tissue repair in photoaged skin compared to excipient control in healthy female volunteers. ([Experimental Dermatology, 2003](https://pubmed.ncbi.nlm.nih.gov/12823436/))
- Ascorbic acid 2-glucoside gel significantly reduced gingival melanin pigmentation after 4 weeks compared to placebo in 73 subjects with symmetric pigmentation. ([Journal of Periodontology, 2009](https://pubmed.ncbi.nlm.nih.gov/19186973/))
- Topical application of VC-IP cream twice daily for 8 weeks reduces periorbital wrinkles in female subjects compared to a placebo cream. ([Journal of Cosmetic Dermatology, 2022](https://pubmed.ncbi.nlm.nih.gov/34910367/))
- Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control. ([Journal of Drugs in Dermatology, 2011](https://pubmed.ncbi.nlm.nih.gov/22052267/))
- Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction. ([Clinical Oral Investigations, 2022](https://pubmed.ncbi.nlm.nih.gov/34623507/))
- Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days. ([BMC Oral Health, 2019](https://pubmed.ncbi.nlm.nih.gov/31311529/))
- Topical application of an antioxidant serum containing 15% ascorbic acid, 0.5% ferulic acid, and 1% tocopherol prevented particulate matter-induced degradation of extracellular matrix components, inflammation, and oxidative stress in the skin of 15 female volunteers compared to untreated controls. ([Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/40642809/))
- Dermatological products containing d-alpha tocopheryl acetate showed non-comedogenic potential with less than a 50% increase in microcomedones in 12 healthy male subjects compared to octyl palmitate. ([Contemporary Clinical Trials Communications, 2021](https://pubmed.ncbi.nlm.nih.gov/34471722/))
- Topical application of an antioxidant mix containing 15% ascorbic acid, 0.5% ferulic acid, and 1% tocopherol prevented PM and UV-induced skin barrier perturbation, lipid peroxidation, inflammatory markers, MMP9 activation, and Type I collagen loss in 15 healthy females compared to untreated exposed skin. ([Journal of Cosmetic Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/38590207/))
- Glutathione amino acid precursors effectively increase cellular glutathione levels, reducing oxidative stress, ATP depletion, and DNA damage in human keratinocytes, clinical subjects, and ex vivo skin compared to controls. ([Journal of the European Academy of Dermatology and Venereology, 2024](https://pubmed.ncbi.nlm.nih.gov/38189670/))
- Topical oxidized glutathione significantly decreases the skin melanin index and improves moisture content, smoothness, wrinkle formation, and elasticity compared to placebo in healthy women. ([Clinical, Cosmetic and Investigational Dermatology, 2014](https://pubmed.ncbi.nlm.nih.gov/25378941/))
- Topical glutathione improves hyperpigmentation, reduces ultraviolet-induced erythema and wrinkles, decreases transepidermal water loss, and enhances antioxidant capacity. ([The Journal of Clinical and Aesthetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/41416233/))
- Topical post-laser application of human adipocyte-derived mesenchymal stem cell media combined with niacinamide significantly improved wrinkle index, melanin index, patient satisfaction, and investigator esthetic improvement scores compared to vehicle cream in patients with aging skin. ([Journal of Cosmetic Dermatology, 2021](https://pubmed.ncbi.nlm.nih.gov/33103316/))
- Topical nicotinamide prevented solar-simulated UV-induced immunosuppression in healthy volunteers, and men experienced immunosuppression at solar-simulated UV doses three times lower than those required for women. ([The Journal of Investigative Dermatology, 2008](https://pubmed.ncbi.nlm.nih.gov/17882270/))
- Topical 5% niacinamide applied twice daily for 12 weeks reduced fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness, and improved skin elasticity compared to vehicle control in 50 female white subjects with facial photoaging. ([Dermatologic Surgery, 2005](https://pubmed.ncbi.nlm.nih.gov/16029679/))

## What reviewers say

This serum is a gentle and effective option for sensitive and acne-prone skin, frequently praised for its ability to brighten the complexion and fade dark spots without causing irritation. Users often note a hydrating and plumping effect, though a significant number find the strong, fishy scent and sticky finish to be considerable drawbacks. Some also mention the need for refrigeration due to the formula's instability and occasional packaging issues.

- Liked: Gentle formula (mostly mentioned)
- Liked: Brightens skin (often mentioned)
- Disliked: Unpleasant scent (often mentioned)
- Liked: Good value (sometimes noted)
- Liked: Hydrating and plumping (sometimes noted)
- Disliked: Sticky finish (sometimes noted)
- Disliked: Storage requirements (sometimes noted)
- Disliked: Packaging issues (rarely noted)

## How to apply

- Apply this serum PM, starting 3×/week and working up to daily use as your skin adjusts.
- Place the serum after cleansing and toner, but right before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and let it absorb for a minute.
- Apply the serum on slightly damp skin to help lock in extra moisture.
- Avoid the eye area and do a patch test before your first use.
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

### What makes COSRX Vitamin C 13 a great fit for dry skin?

This serum is a great fit for dry skin because squalane and tocopherol help keep your skin barrier strong and hold in moisture. Ascorbic acid also brightens and smooths your skin while offering extra hydration.

### Which ingredients make this serum a good fit for dry skin?

Squalane and tocopherol make this serum a great fit for dry skin by keeping it soft and holding in moisture. Ascorbic acid and 3-0-ethyl ascorbic acid add bright, even tone with minimal risk of irritation.

### What does Vitamin C do for dry skin?

Vitamin C helps dry skin by boosting moisture and keeping the surface smooth and soft. It may also improve skin hydration and support the outer protective barrier over time.
Sources: [Skin Research and Technology, 2008](https://pubmed.ncbi.nlm.nih.gov/19159387/), [Experimental Dermatology, 2008](https://pubmed.ncbi.nlm.nih.gov/18503551/)

### What does Hyaluronic Acid do for dry skin?

Hyaluronic acid draws moisture into dry skin, giving an immediate and lasting boost in hydration that helps smooth out fine lines and soften rough patches. It is very gentle and unlikely to cause irritation while improving overall skin smoothness and plumpness.
Sources: [Dermatology and Therapy, 2021](https://pubmed.ncbi.nlm.nih.gov/34176098/), [Journal of Drugs in Dermatology, 2011](https://pubmed.ncbi.nlm.nih.gov/22052267/)

### Where does this serum go in a skincare routine for dry skin?

This serum goes in the evening routine after cleansing and before moisturizing, which keeps things simple and protects your skin around sun exposure. Some vitamin C serums can also be used in the morning or twice a day if your skin tolerates them well.

### Can I use this serum with retinol, and in what order?

You can use this serum with retinol, but it is best to apply them on alternate nights or use retinol at night and this serum in the morning to keep your dry skin calm. Combining potent actives all at once may raise the likelihood of irritation, so spacing them out helps your skin stay comfortable.

### How often should I use this serum?

This serum fits into your evening routine as a treatment step. It is generally safe for dry skin and helps brighten and smooth your skin tone with minimal risk of irritation.
Sources: [Facial Plastic Surgery, 2014](https://pubmed.ncbi.nlm.nih.gov/24488631/)

### Can this serum clog pores, cause breakouts or purging for dry skin?

This serum is unlikely to clog pores or cause breakouts for dry skin, and it does not contain ingredients that typically trigger skin purging. Its lightweight formula focuses on hydration and barrier support rather than heavy, pore-clogging oils.

### Is this serum fragrance-free and alcohol-free?

Yes, it has no fragrance and no drying alcohol.

## Alternatives for dry skin

- [Beauty of Joseon Propolis + Niacinamide Glow Serum](https://lovi.care/skincare/p/beauty-of-joseon/propolis-niacinamide-glow-serum/for/dry-skin) — Superior fit — $16.75 at Amazon
- [Paula's Choice RESIST Super Antioxidant Concentrate Serum](https://lovi.care/skincare/p/paula-s-choice/resist-super-antioxidant-concentrate-serum/for/dry-skin) — Superior fit — $53.00 at Amazon
- [ma:nyo Bifida Biome Complex Ampoule](https://lovi.care/skincare/p/ma-nyo/bifida-biome-complex-ampoule/for/dry-skin) — Superior fit — $19.90 at Amazon

## Pairs well with

- Cleanser: [La Roche-Posay Hydrating Gentle Cleanser](https://lovi.care/skincare/p/la-roche-posay/toleriane-hydrating-gentle-cleanser/for/dry-skin) — Superior fit — $19.99 at Amazon
- Hydrating Toner: [Pyunkang Yul Calming Deep Moisture Toner](https://lovi.care/skincare/p/pyunkang-yul/calming-deep-moisture-toner/for/dry-skin) — Superior fit — $16.99 at Amazon
- Moisturizer: [SKIN1004 Madagascar Centella Probio-Cica Enrich Cream](https://lovi.care/skincare/p/skin1004/madagascar-centella-probio-cica-enrich-cream/for/dry-skin) — Superior fit — $22.00 at Amazon

## Where to buy

- Amazon.com: $14.99 (https://www.amazon.com/dp/B0FWQKKT1K?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
Prices checked 6 Nov 2026.

## Ingredients

Water, Ascorbic Acid, Butylene Glycol, Dipropylene Glycol, Tromethamine, 3-0-Ethyl Ascorbic Acid, Panthenol, Acetyl Glucosamine, Caffeine, Sodium Hyaluronate, Sodium Sulfite, Disodium Edta, Glutathione, Adenosine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Squalane, Tocotrienols, Tocopherol, Palm Oil, Arginine, Niacinamide, Pentylene Glycol, Glycyrrhiza Glabra Root Extract Licorice Root Extract
## About the Lovi Fit

Lovi: Unbiased, science-based skincare AI trained on real user outcomes.

Lovi calculates every fit score from the full ingredient list with brand-independent rules its dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update. Levels from best to worst: Superior, High, Average, Low, Caution, Warning.

Behind this fit score: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board).

Page built Nov 8, 2026.

More from Lovi: https://lovi.care/skincare/llms.txt

## This page in other countries

- United States: https://lovi.care/skincare/p/cosrx/the-vitamin-c-13-serum/for/dry-skin (this page)
- United Kingdom: https://lovi.care/skincare/uk/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- Ireland: https://lovi.care/skincare/ie/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- Germany: https://lovi.care/skincare/de/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- France: https://lovi.care/skincare/fr/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- Italy: https://lovi.care/skincare/it/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- Netherlands: https://lovi.care/skincare/nl/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- Spain: https://lovi.care/skincare/es/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- Canada: https://lovi.care/skincare/ca/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- Australia: https://lovi.care/skincare/au/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- Singapore: https://lovi.care/skincare/sg/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/cosrx/the-vitamin-c-13-serum/for/dry-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/cosrx/the-vitamin-c-13-serum/for/dry-skin