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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 celebrated Korean skincare brands offering expertly formulated serums, cleansers, toners, moisturizers, and masks. The former thoughtfully incorporates hyaluronic acid, glycerin, and niacinamide to suit acne-prone and oily skin best, while the latter is built around niacinamide, centella asiatica, and salicylic acid to fit dry sensitive and sensitive skin best. Through daily application, both brands work to reduce hyperpigmentation, improve skin aging signs, and maintain skin clarity. While the first brand is dearly loved for lengthening toxin duration and significantly increasing barrier function, the second focuses heavily on reducing acne lesions and soothing irritation.

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

Buy Some By Mi routine · £90.42 · 91% fitBuy COSRX routine · £52.48 · 89% fitSee multi-brand routine · 99% fit

COSRX vs Some By Mi routines for oily skin

Buy COSRX routine · £143.60 · 90% fitBuy Some By Mi routine · £120.03 · 87% fitSee multi-brand routine · 97% fit

COSRX vs Some By Mi routines for combination skin

Buy COSRX routine · £119.44 · 88% fitBuy Some By Mi routine · £126.95 · 88% fitSee multi-brand routine · 96% fit

Questions and answers

COSRX or Some By Mi: which is better?

Both brands are great, but they perform best in different areas according to the products on this page. COSRX is superior for acne-prone skin, oily skin, and hydration, while Some By Mi offers superior results for dry sensitive skin, soothing, and brightening.

What is the difference between COSRX and Some By Mi?

COSRX is owned by Amorepacific Group and performs better for hydration, acne-prone skin, oily skin, and oily acne-prone skin, whereas Some By Mi is owned by JKL Partners and excels in soothing, acne and pore control, brightening, and routine fit for dry sensitive skin and skin with dark spots. Both brands were founded in South Korea and focus on similar key ingredients like niacinamide and Centella asiatica, but reviewers note fewer fragrance issues with COSRX while highlighting Some By Mi for deep pore cleansing cleansers.

COSRX or Some By Mi for dry skin?

For dry skin, Some By Mi achieves a Superior routine fit, while COSRX reaches a High level. Some By Mi excels in soothing and brightening, whereas COSRX offers strong hydration and moisture benefits across the products on this page.

COSRX or Some By Mi: which cleanser is better?

Both COSRX and Some By Mi offer cleansers on the products on this page with different fit levels depending on skin type. COSRX provides cleansers that fit sensitive skin and acne-prone skin at a Superior level, while Some By Mi offers cleansers where options like Snail Truecica Miracle Repair Low pH Gel Cleanser reach a Superior level for skin with dark spots, mature skin, and acne-prone skin.

Which is more affordable, COSRX or Some By Mi?

The products on this page do not list pricing information, so a direct comparison of affordability between COSRX and Some By Mi is not possible from the provided page facts.

COSRX or Some By Mi: which brand is better for brightening and glow?

Some By Mi does better than COSRX for brightening and glow. Niacinamide helps control skin pigmentation and suppress melanosome transfer, which supports these brightening effects.

The British Journal of Dermatology, 2002Antioxidants, 2021

COSRX or Some By Mi: which is better for hydration and moisture?

COSRX does better for hydration and moisture, according to the products on this page. Hyaluronic acid helps bind moisture in the skin, while glycerin and panthenol aid in maintaining hydration levels.

Journal of Pharmacy & Pharmaceutical Sciences, 2015Drug Delivery, 2017

COSRX or Some By Mi: which brand has fewer scent and fragrance issues?

COSRX does better than Some By Mi with scent and fragrance issues. While Some By Mi reviewers often mention a strong or medicinal scent, COSRX reviewers only sometimes note an unpleasant scent or smell, and 37 of the 38 products on its page list no fragrance.

COSRX or Some By Mi for oily skin?

COSRX is better for oily skin, offering a Superior routine fit compared to Some By Mi's High fit on this page.

COSRX or Some By Mi: which moisturizer is better?

Both COSRX and Some By Mi offer moisturizers, with COSRX achieving a High routine fit for dry skin and Some By Mi reaching a Superior fit. Reviewers note that COSRX delivers deep hydration and moisturization, while Some By Mi features excellent texture moisturizers.

COSRX or Some By Mi for sensitive skin?

Both COSRX and Some By Mi are well-suited for sensitive skin, with Lovi fit levels of Superior for the products on this page. COSRX has 37 out of 38 products listing no fragrance, while Some By Mi lists no fragrance across all products on this page.

COSRX or Some By Mi: which sunscreen is better?

Both COSRX and Some By Mi offer sunscreens with High Lovi fit levels for acne-prone skin, sensitive skin, and oily skin among the products on this page.

COSRX or Some By Mi for acne-prone skin?

For acne-prone skin, COSRX is a Superior fit across the products on this page, while Some By Mi has a High fit level. COSRX fits best for acne-prone skin, oily skin, and sensitive skin by its brand-focused routines.

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

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