Transderma

Transderma is a Swedish skincare brand founded in Stockholm in 1998 [1]. It makes a compact line of water-free vitamin serums built around the idea of stripping a formula down to its active ingredients. The brand was created by Dr. Klaus Alvin Ronlán, a bio-organic chemist, together with skincare entrepreneur Graziella Gallelli [3], and it remains independently owned and made in Sweden [1].

For most of its history Transderma sold through medical and aesthetic channels rather than in shops. Only in recent years did it open a direct-to-consumer website, which is now active and offers the same five serums the company launched at the start.

The brand grew out of the laboratory research of Dr. Klaus Alvin Ronlán (1942–2018), who held a Ph.D. from the Royal Institute of Technology (KTH) in Stockholm and a doctorate from the University of Lund, where he later became a professor of bio-organic chemistry. He founded the Alron Chemical Co AB in 1977 and, according to the company, produced more than 58 peer-reviewed papers and international patents in antioxidant chemistry and transdermal delivery.

Transderma states that Ronlán spent about 25 years studying how antioxidants and vitamins behave in skin and how to carry them through it before the brand launched [3]. The company's science page frames this instead as more than 30 years of research [5], and an independent review likewise credits the founder with "over 30 years of research on vitamins and their delivery systems" [7] — a difference of framing (pre-launch work versus a running total) rather than a dispute over the 1998 founding. Ronlán's commercial partner, Graziella Gallelli, translated the laboratory work into a consumer brand; the company describes the two as the co-founders, and one editorial account identifies Ronlán as Gallelli's late husband [7]. The venture emerged from the existing Alron Chemical laboratory in Stockholm.

Transderma launched in 1998 with five serums released together as a single system, each keyed to a different active and skin concern: Transderma C (vitamin C, aimed at firmness), A (retinol with vitamin E, used at night), O (PQQ and B vitamins), M (for dry, sensitive or mature skin) and R (resveratrol, aimed at uneven pigmentation). The company says the formulations have remained unchanged since then.

The products are built on a water-free approach the brand sums up as "100% active. No filler." Transderma says its serums contain no water, preservatives, emulsifiers, fragrance or colorant, and are dispensed from a sealed airless pump meant to keep out oxygen and contamination. It describes the actives as stabilised by squalane, a skin-identical lipid it says carries the vitamins past the outer skin layer into the dermis [6]. Hero ingredients across the line include vitamin C as L-ascorbic acid, retinol, vitamin E, resveratrol, PQQ, niacinamide and ceramides. The serums are sold individually and as a smaller discovery kit.

The company summarises its philosophy as "We don't add more; we remove everything unnecessary."

Transderma states that all five formulas are vegan and that it has never tested on animals [6]. It positions the serums as fragrance-free, without added colorant or emulsifiers. The company says its products are registered under EU cosmetics legislation and were laboratory-approved by Läkemedelsverket, the Swedish Medical Products Agency, and its site lists EWG Verified status.

Transderma spent roughly three decades distributing through the medical and aesthetic community rather than through general retail — the company cites plastic-surgery clinics in Japan, pharmaceutical distribution in Taiwan and retail in Stockholm [3]. It later added a direct-to-consumer channel after customers outside clinical settings began asking for retail access.

The brand lists several regional awards on its own site, including recognition from ELLE Sweden (2013), Swedish Beauty & Cosmetics (2016) and the Nordic Natural Beauty awards (2020) [1]. In 2021 the trade title LUXlife named it the "Most Outstanding Natural Skincare Serum Brand" in Sweden [8]. In an independent review, The Beauty Librarian tested all five serums, gave the line "my highest recommendation" and called Serum A "one of the best retinol products I have ever used" [7].

Transderma is active. Its direct-to-consumer site sells the full five-serum line, and the company describes itself as "still independently owned" and "still made in Sweden" [1]. No current parent company is recorded; the brand's earlier corporate lineage traces to the founder's Alron Chemical Co AB, but that is not listed as a present owner.