Some By Mi

Some By Mi is a South Korean skincare brand built around active, acid-based formulas for sensitive, blemish-prone skin. Editorial sources date the brand to 2015 [3], while the legal record shows its operating company, Perennebell Co., Ltd., was incorporated in South Korea in 2016 [4] — most likely reflecting a first concept and products in 2015 followed by formal incorporation the next year. It is based in the Gangnam district of Seoul and is best known for its AHA-BHA-PHA 30 Days Miracle line, whose toner became a widely recognised K-beauty product.

The brand describes its approach as a "New Cleanical Solution," pairing what it presents as safe ingredients with verified efficacy to address problematic skin. Its name is drawn from the words "something" and "by a miracle," combined with "mi," which the company links to the Korean word for beauty [5]; the tagline "Something by a Miracle" carries the same idea.

Some By Mi is produced and operated by Perennebell Co., Ltd., a South Korean company [4]. The brand's Korean storefront lists the company (rendered as Perenbell) with a registered representative named Jin Yoon-jin and a headquarters at Geumgang Tower in Gangnam-gu, Seoul. The company incorporated in 2016 is the same legal entity behind the product lines sold today.

Some By Mi positions itself as a "cleanical" brand — a blend of "clean" and "clinical" — aimed at sensitive, acne-prone and problematic skin. The company frames its products around visible improvement within a defined window, most famously the "30 days" promise attached to its Miracle range. Its formulas lean on exfoliating acids and soothing actives, and it markets itself at an accessible, drugstore price point rather than as a premium line.

The brand's audience skews toward younger consumers with oily-to-combination skin, dilated pores and recurring mild-to-moderate breakouts [3]. Much of its visibility, particularly in markets such as France, has come through social media and before-and-after acne imagery.

The AHA-BHA-PHA 30 Days Miracle Toner is the product that built the brand's reputation [3]. It combines three families of exfoliating acid — alpha hydroxy (citric acid), beta hydroxy (salicylic acid) and poly hydroxy (lactobionic acid) — with tea tree extract, niacinamide and adenosine. The toner anchors a broader 30 Days Miracle line spanning foam, cream, cleanser and pads, and sits alongside the Snail Truecica Miracle Repair Cream, which combines black snail mucin and centella asiatica extract for irritated skin, minor acne scars and redness [3]. More recent lines include a Retinol Intense Advanced serum.

Not every assessment of the flagship toner is uncritical. The skincare-analysis site Beautiful With Brains reported the toner had "achieved cult status" — noting a claim that one bottle sold every three seconds — while arguing that its exfoliating acid concentrations are too low to exfoliate skin effectively [7]. Independent testers elsewhere have described the formula as surprisingly gentle rather than potent.

On sourcing and ethics, the company says it manufactures its products in Korea and supports no-animal-testing practices, and it has described products as vegan and cruelty-free [8]. It has also cited EWG Green Grade components for some formulas.

The AHA-BHA-PHA 30 Days Miracle Toner was named a 2020 Best of K-Beauty winner by the US K-beauty curator Soko Glam [6]. Coverage from outlets including Soko Glam and YesStyle has credited the brand with strong recognition in Korea and among beauty commentators, alongside an export footprint the brand describes as reaching more than 20 countries, including the United States, Canada, Japan, Australia and the United Kingdom [5].

In 2024, Some By Mi's operator Perennebell prevailed as plaintiff in an unfair-competition case in China, where courts found that a defendant had copied the distinctive packaging of its AHA-BHA-PHA and Snail Truecica series in breach of Article 6.1 of China's Anti-Unfair Competition Law [4]. The company was the party bringing the claim rather than the subject of wrongdoing.

Some By Mi is an actively trading brand. It operates its Korean storefront and a global site, continues to sell current lines such as 30 Days Miracle and Retinol Intense, and remains the subject of ongoing third-party reviews.