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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 more. COSRX uses hyaluronic acid, glycerin, and niacinamide to suit acne-prone and sensitive skin best, whereas Some By Mi relies on niacinamide, centella asiatica, and salicylic acid to fit dry sensitive and dry skin best. While both brands target reactive complexions with notable efficacy, they differ in their foundational ingredients and specific skin type strengths.

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 · 97% fit

COSRX vs Some By Mi routines for oily skin

See multi-brand routine · 95% fit

COSRX vs Some By Mi routines for combination skin

See multi-brand routine · 96% fit

Questions and answers

COSRX or Some By Mi: which is better?

COSRX and Some By Mi both perform well across skin types, but COSRX is better for acne-prone skin, while Some By Mi is better for dry sensitive skin and skin with dark spots. Reviewers note that COSRX excels in hydration and moisture, whereas Some By Mi leads in soothing, brightening, and acne control.

What is the difference between COSRX and Some By Mi?

COSRX and Some By Mi differ mainly in their formulation focus and skin-type fit on the products on this page, with COSRX leaning toward hydration and Some By Mi leaning toward brightening and soothing. Reviewers note that COSRX provides better hydration and moisture, while Some By Mi excels in acne and pore control, soothing and calming, and brightening and glow.

COSRX or Some By Mi for dry skin?

For dry skin, Some By Mi offers a Superior routine fit, whereas COSRX achieves a High routine fit on the products on this page.

COSRX or Some By Mi: which cleanser is better?

When it comes to cleansers on this page, both brands offer options that work well, but Some By Mi is noted for better acne and pore control. Reviewers frequently mention Some By Mi for deep pore cleansing cleansers, while COSRX cleansers fit best for sensitive skin, acne-prone skin, and oily acne-prone skin.

Which is more affordable, COSRX or Some By Mi?

The products on this page do not provide pricing information, so it is not possible to determine whether COSRX or Some By Mi is more affordable.

Which brand performs better for brightening and glow, COSRX or Some By Mi?

Some By Mi performs better for brightening and glow according to the review themes on the page. Niacinamide helps reduce cutaneous pigmentation and suppress melanosome transfer.

The British Journal of Dermatology, 2002Antioxidants, 2021

How do the founding years and corporate ownership compare between COSRX and Some By Mi?

COSRX was founded in 2013 in South Korea and has been owned by Amorepacific Group since 2024, whereas Some By Mi was founded in 2016 in South Korea and is owned by JKL Partners.

Which brand is better suited for addressing skin with dark spots, COSRX or Some By Mi?

Some By Mi is better suited for addressing skin with dark spots, as the products on this page achieve a Superior Lovi fit level for this concern compared to COSRX's High fit level. Review themes also indicate that Some By Mi does better in brightening and glow.

The British Journal of Dermatology, 2002Antioxidants, 2021

COSRX or Some By Mi for oily skin?

Both COSRX and Some By Mi fit oily skin well, as Lovi rates the routine fit for both brands as High.

COSRX or Some By Mi: which moisturizer is better?

When comparing moisturizers on this page, both COSRX and Some By Mi offer well-liked options, with COSRX leaning toward deep hydration and Some By Mi focusing on brightening and soothing. Reviewers note that COSRX products on this page often help with lightweight absorption and deep moisturization, while Some By Mi moisturizers are recognized for their excellent texture and complexion brightening.

COSRX or Some By Mi for sensitive skin?

Both COSRX and Some By Mi fit sensitive skin with a Superior Lovi rating. Reviewers report that both brands offer gentle formulas, though some users note that Some By Mi products may occasionally cause stinging or dryness.

COSRX or Some By Mi: which sunscreen is better?

Both COSRX and Some By Mi offer sunscreens with High Lovi fit levels across skin types on this page. While COSRX features options like the Aloe Soothing Sun Cream and Ultra-Light Invisible Sunscreen, Some By Mi provides the V10 Hyal Air Fit Sunscreen.

COSRX or Some By Mi for acne-prone skin?

COSRX is the better choice for acne-prone skin on this page, offering Superior fit levels compared to Some By Mi's High fit level. Both brands include salicylic acid as a key ingredient, which helps with acne control.

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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