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COSRX vs Some By Mi

Rated by Lovi · Unbiased, science-based skincare AI trained on real user outcomes · How the Fit score works

COSRX and Some By Mi are popular Korean skincare brands offering serums, cleansers, toners, moisturizers, and masks. The former brand relies on hyaluronic acid, glycerin, and niacinamide to suit oily and sensitive skin, whereas the latter brand utilizes niacinamide, centella asiatica, and salicylic acid to fit dry and dry sensitive skin. Both lines differ in their exact ingredient profiles and targeted skin types, with the first focusing on moisture balance and irritation soothing and the second emphasizing acne clarity and dark spot care.

COSRX is a Korean skincare brand founded in 2013 and owned by Amorepacific Group since 2024.

koreajoongangdaily.combeautymatter.comprnewswire.com

Some By Mi is a Korean skincare brand founded in 2016 and owned by JKL Partners since 2021.

kedglobal.compreqin.comtracxn.com

This page compares some of the most popular COSRX and Some By Mi products; for every product of both brands, with a fit score for your own skin, use the Lovi app.

Popular COSRX vs Some By Mi products

People Say

COSRXSome By Mi
  • Texture and Absorption Mostly MentionedMostly Mentioned
    • “absorbs instantly like water — COSRX The 6 Peptide Skin Booster Serum”
    • “sinks in immediately — COSRX Advanced Snail Peptide Eye Cream”
    • “Skin became smoother — Some By Mi AHA-BHA-PHA 30 Days Miracle Toner”
    • “absorbs quickly — Some By Mi Yuja Niacin Brightening Moisture Gel Cream”
  • Gentle Formula Mostly MentionedOften Mentioned
    • “No stinging or irritation — COSRX BHA Blackhead Power Liquid”
    • “extremely gentle — COSRX AHA/BHA Clarifying Treatment Toner”
    • “Zero irritation or redness — Some By Mi Retinol Intense Reactivating Serum”
    • “cleared my cystic acne — Some By Mi AHA-BHA-PHA 30 Days Miracle Acne Clear Foam”
  • Acne and Pore Control Often MentionedMostly Mentioned
    • “Reduces pimples — Some By Mi AHA-BHA-PHA 30 Days Miracle Toner”
    • “cleared my cystic acne — Some By Mi AHA-BHA-PHA 30 Days Miracle Acne Clear Foam”
    • “flattened my cystic acne — Some By Mi AHA BHA PHA 30 Days Miracle Serum”
    • “helped to improve my acne after only 2 weeks — COSRX Salicylic Acid Daily Gentle Cleanser”
  • Hydration and Moisture Mostly MentionedOften Mentioned
    • “skin drinks it up — COSRX Advanced Snail 96 Mucin Power Essence”
    • “woke up with soft, supple skin — COSRX Advanced Snail 92 All in One Cream”
    • “gives a healthy glow — COSRX The 6 Peptide Skin Booster Serum”
    • “Lasts 100 hours as claimed — Some By Mi Beta Panthenol Repair Cream”
  • Soothing and Calming Sometimes NotedOften Mentioned
    • “Calmed my retinol burn overnight — Some By Mi Beta Panthenol Repair Cream”
    • “calm my redness — Some By Mi Snail Truecica Miracle Repair Serum”
    • “calmed my angry red skin — Some By Mi AHA BHA PHA 30 Days Miracle Serum”
    • “calms down my redness — COSRX Advanced Snail 96 Mucin Power Essence”
  • Brightening and Glow Not notedOften Mentioned
    • “Fades dark spots — Some By Mi Galactomyces Pure Vitamin C Glow Serum”
    • “skin looks visibly brighter — Some By Mi Yuja Niacin Anti Blemish Serum”
    • “brightens dull skin — Some By Mi Yuja Niacin Brightening Moisture Gel Cream”
  • Scent and Fragrance Issues Sometimes NotedOften Mentioned
    • “smells like chemicals — COSRX Low pH Good Morning Gel Cleanser”
    • “smells like onions — COSRX The Retinol 0.1 Cream”
    • “smells like tea tree/medicinal — COSRX Oil-Free Ultra-Moisturizing Lotion (with Birch Sap)”
    • “overwhelming citrus fragrance — Some By Mi V10 Hyal Air Fit Sunscreen”
  • Adverse Skin Reactions and Breakouts Sometimes NotedOften Mentioned
    • “burned my skin — COSRX Advanced Snail 96 Mucin Power Essence”
    • “gave me fungal acne — COSRX Advanced Snail 96 Mucin Power Essence”
    • “gave me tiny bumps — COSRX Low pH Good Morning Gel Cleanser”
    • “Zits appeared initially — Some By Mi AHA-BHA-PHA 30 Days Miracle Toner”
  • Dryness and Stripping Often MentionedSometimes Noted
    • “left my face tight — COSRX Low pH Good Morning Gel Cleanser”
    • “leaves skin feeling tight — COSRX Salicylic Acid Daily Gentle Cleanser”
    • “not moisturizing enough — Some By Mi Yuja Niacin Brightening Moisture Gel Cream”
    • “Skin felt tight — Some By Mi AHA-BHA-PHA 30 Days Miracle Toner”

COSRX vs Some By Mi routines for dry skin

See multi-brand routine · 98% fit

COSRX vs Some By Mi routines for oily skin

See multi-brand routine · 96% fit

COSRX vs Some By Mi routines for combination skin

See multi-brand routine · 95% fit

Questions and answers

COSRX or Some By Mi: which is better?

Both brands are effective, but COSRX tends to do better for hydration and moisture, while Some By Mi excels in acne and pore control, soothing, and brightening. Lovi finds that COSRX has a Superior routine fit for oily skin, acne-prone skin, and oily acne-prone skin, whereas Some By Mi has a Superior routine fit for dry skin, skin with dark spots, and dry sensitive skin.

What is the difference between COSRX and Some By Mi?

COSRX is better for hydration, acne control, and oily skin, while Some By Mi excels in soothing, brightening, and dry sensitive skin. Both brands share similar gentle formulas and absorption textures, but COSRX offers superior routine fit for acne-prone skin, whereas Some By Mi has a superior routine fit for dry sensitive skin.

COSRX or Some By Mi for dry skin?

Some By Mi is the better fit for dry skin, where Lovi rates its routine as Superior compared to COSRX at High. The products on this page help provide deep hydration and improve skin texture, while niacinamide helps reduce cutaneous pigmentation.

The British Journal of Dermatology, 2002Antioxidants, 2021

COSRX or Some By Mi: which cleanser is better?

Some By Mi provides better cleansers for deep pore cleansing, while COSRX offers options that are more gentle and non-irritating for sensitive skin. Lovi rates the Yuja Niacin Brightening All-In-One Cleanser as High for oily skin and the Snail Truecica Miracle Repair Low pH Gel Cleanser as Superior for skin with dark spots.

Which is more affordable, COSRX or Some By Mi?

The provided page does not contain information about pricing or affordability for either COSRX or Some By Mi.

COSRX or Some By Mi for dark spots?

Some By Mi is the better choice for dark spots because the products on this page achieve a Superior fit level for skin with dark spots, whereas COSRX achieves a High fit level. Niacinamide, featured in both brands, helps reduce cutaneous pigmentation.

The British Journal of Dermatology, 2002Antioxidants, 2021

COSRX or Some By Mi for oily skin?

For oily skin, Lovi rates COSRX as Superior and Some By Mi as High.

COSRX or Some By Mi: which moisturizer is better?

Both COSRX and Some By Mi offer moisturizers, with COSRX providing products on this page that are formulated to deliver deep hydration and moisturization while Some By Mi features moisturizers suited for brightening and repairing.

COSRX or Some By Mi for sensitive skin?

Both COSRX and Some By Mi achieve a Superior Lovi fit for sensitive skin. Reviewers note that COSRX provides gentle formulas with less fragrance, while Some By Mi offers soothing treatments and deep pore cleansing.

COSRX or Some By Mi: which sunscreen is better?

Both COSRX and Some By Mi offer sunscreens that perform well across multiple skin types on the products on this page, with COSRX providing sunscreens that help achieve high fit levels for acne-prone, sensitive, and dry skin.

COSRX or Some By Mi for acne-prone skin?

For acne-prone skin, COSRX fits better, offering a Superior routine fit compared to Some By Mi, which has a High fit level.

COSRX or Some By Mi for dry sensitive skin?

Some By Mi is the better choice for dry sensitive skin because Lovi rates its routine as Superior compared to High for COSRX. Some By Mi also performs better for soothing and calming the skin.

COSRX or Some By Mi for oily acne-prone skin?

COSRX is better for oily acne-prone skin, as Lovi rates its routine as Superior compared to High for Some By Mi. COSRX helps with acne control and clearing, while Some By Mi may cause drying or stripping effects.

Research behind their key ingredients

Behind this comparison

Lovi compares products by their fit scores, calculated from the full ingredient list with brand-independent rules our 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.

  • Nadia Kapleva, MS

    Nadia Kapleva, MS

    Co-founder, Medical Director

    Cosmetic chemist, cosmetologist, aesthetic products developer

  • Alexey Shagraev, PhD

    Alexey Shagraev, PhD

    Co-founder, CEO and CTO

    PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex

  • Dr. Sofía Perea Pérez, MD, MSc

    Dr. Sofía Perea Pérez, MD, MSc

    Medical Board

    Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine

  • Aishani Shah, MD

    Aishani Shah, MD

    Medical Board

    Specialist dermatologist, MBBS, MD, IFAAD

  • Asya Zubkova, MS

    Asya Zubkova, MS

    Medical Board

    Cosmetic chemist, SCS, IFSCC member

  • Hanna Kurets, MD

    Hanna Kurets, MD

    Medical Board, Medical Advisor

    Dermatology MD

  • Elina Nazarenko, MD

    Elina Nazarenko, MD

    Medical Board

    Dermatology and diagnostic consultant

  • Victoria Derkova, MS

    Victoria Derkova, MS

    Medical Board

    Cosmetic chemist, cosmetic development technologist

How does it fit your skin?

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