DOCTOR MI!

DOCTOR MI! is a German skincare brand created by the Munich dermatologist Dr. Miriam Rehbein. Its core range is built around retinol, the vitamin A derivative widely used against signs of skin ageing, and around an encapsulation method the company calls TECMi®. The business is run by Doctor Mi! GmbH, registered in Grünwald on the southern edge of Munich [3].

The brand's age depends on which milestone is counted. The business magazine Business Punk dates the founding of the company to 2015 [6], while the retailer Niche Beauty and the women's magazine FÜR SIE place the launch of the product line in 2018 [8]. The two dates describe different events rather than competing claims: Business Punk itself reports that the first product was sold in December 2018 [6].

Miriam Rehbein comes from a family of doctors. She studied medicine, specialised in dermatology and opened a practice in Munich, according to Business Punk. The company describes her as a dermatologist with a surgical background and an internationally recognised expert in retinol. On the brand's homepage she introduces herself as a doctor, a mother of four and an entrepreneur.

DOCTOR MI! presents its skincare as an outgrowth of that clinical work. The founder page says the formulas come from daily practice and the treatment of thousands of patients. In a 2025 interview with Niche Beauty, the account of the brand's beginnings adds that Rehbein spent four years researching with a local laboratory before launching the line under the name "DOCTOR MI! medical skincare". Explaining her aim, she told the retailer that she wanted a brand known for both effectiveness and gentle tolerability.

The company was set up in 2015, and the products reached the market three years later. Business Punk describes an unusually lean start. DOCTOR MI! was built without investors, without an agency and without a co-founder, and in its first year Rehbein, still working alone, made a profit of 800,000 euros [6]. The magazine gives no calendar year for that figure.

Growth since then has come partly through new sales channels. Business Punk reports a distribution deal with the German home-shopping broadcaster HSE, which it says opened up a new scale of volume. By the time of the magazine's profile in July 2026, the team had grown to 20 people and the brand had launched in Switzerland and France, with the United States on its roadmap [6]. The company's online shop now runs separate storefronts for Switzerland, in German and French, and for the European Union, in German and English.

DOCTOR MI! is independent. No parent company is known, and Business Punk's account of a business built without outside investors is consistent with that. The imprint names Dr. Miriam Rehbein and Marian Gradl-Schikora as managing directors of Doctor Mi! GmbH, which is entered in the commercial register at the Munich district court [3]. A related clinic, Doctor Mi Clinic, is linked from the founder's page on the brand website.

The company calls its approach medical skincare. According to its founder page, the central idea is to activate the skin's own renewal processes rather than simply improve how the skin looks on the surface. DOCTOR MI! says it uses active ingredients in effective, study-based concentrations, and it labels its formulas "Active-Only", with the stated focus on effectiveness and skin tolerability. Rehbein frames her own goal as a search for efficacy that can be traced and a clear, medically grounded approach to skin health.

Research, formulation and production all take place in Germany, according to the brand [2]. The footer of its website sums up the positioning in a single line: the products are developed by Dr. Miriam Rehbein with TECMi® technology.

FÜR SIE, which tested the range in 2025, placed it in the premium price bracket and concluded that the brand suits readers who have money to spare or want to treat themselves now and then [7].

The range is organised into three lines. Care covers everyday basics, Renewal holds the retinol products, and Longevity, described as cell care for a strong skin barrier, was still marked "Coming Soon" on the company's website in late 2026. Alongside skincare, the shop also sells a mascara, The Super Boost Mascara, and a Red Lip Tint.

Retinol sits at the centre of the brand. The company says Rehbein developed TECMi® as a way of encapsulating actives, and it claims the capsule fully protects the retinol molecule from light, air and early oxidation, releasing it only deep in the skin [4]. Ordinary retinol, in the company's account, breaks down on the skin's surface before it can reach deeper layers. The site also describes retinol as the only cosmetic active proven to bring real skin rejuvenation rather than a purely visual improvement. These are the company's own descriptions; the separate TECMi® page on its website offers no further detail on the mechanism, studies or patents.

The newest step is what the company calls Triple TECMi® Retinol. Each product in this group combines three forms of vitamin A: encapsulated retinol, encapsulated retinal and retinyl palmitate. The brand describes retinyl palmitate as the stable base and the newly added retinal as bringing a strength not previously available in daily care. TECMi® Retinol is offered in four intensities, so users can step up gradually.

Several products carry the line's reputation. Rehbein named SUPER RED, an overnight refining treatment combining concentrated encapsulated retinol with the TECMi® method, as her personal favourite [8]. Business Punk singled out the Retinol Collection day and night creams as bestsellers, alongside Red Booster and Super Red Serum. The homepage features The Glow Duo, a peel and mask set, and The Real Hydration Ampoule. The company also offers an online skin analysis tool on a separate site.

On its homepage, DOCTOR MI! cites a user survey in which all respondents reported very good tolerability and 91 percent noticed a more even complexion. The footnote states that the survey involved 35 women over four weeks [1]; it is a user survey, not a clinical trial. No third-party certifications are documented.

The brand's coverage comes mainly from German-language media. Business Punk ran a founder profile, "Frau Dr. ist eine Brand", in July 2026, which also reported a returning-customer rate of 68 percent [6].

FÜR SIE published a review of six products in May 2025 with mixed results [7]. The reviewer praised the Hydrate & Lift Serum, calling it the one to choose if buying a single product from the brand, and named the Red Lip Tint her favourite of the range. She was surprised by how well the Day & Night Retinol Creme was tolerated, but said she would not spend money on the Reviving Peeling. Niche Beauty, a retailer that stocks the brand, published its founder interview in January 2025 as part of its own editorial series.

DOCTOR MI! is active. As of November 2026, its homepage announced a flagship store in central Munich for autumn 2026 [1], and the Longevity line remained listed as forthcoming. The brand runs official accounts on Instagram, TikTok, YouTube and Facebook.