Antihydral

Antihydral is a German brand of treatments for heavy sweating, made by Robugen GmbH Pharmazeutische Fabrik, a family-owned pharmaceutical company in Esslingen am Neckar. Its core product is a methenamine ointment licensed in Germany as a medicine for excessive sweating of the hands, feet and underarms, sold in pharmacies without a prescription [12]. Around it sit two newer, simpler products: an aluminium-free antiperspirant spray and a cosmetic foot-care cream.

The brand is small and pharmacy-focused, yet its ointment has found a second life far from the pharmacy counter. Since at least the early 2010s, rock climbers outside Germany have used it to dry and toughen their fingertips, and climbing media have written about it as a little-known grip aid from Germany [9][10]. The brand remains active, with a current website, a three-product range and an online magazine about sweating.

When Antihydral was first launched, and by whom, is not publicly documented. Neither the brand's website nor its manufacturer's company history gives a launch year for the product, and the manufacturer's own timeline does not mention it at all.

The history that is documented belongs to the maker. Robugen was founded in 1927 in Esslingen by the pharmacist Dr. Theodor Mauz together with his sons Ernst and, later, Jörg Mauz [5]. The company grew out of the Rats-Apotheke on Esslingen's town-hall square, a pharmacy the company describes as more than 500 years old. A 2014 trade-press profile adds that, by the family's own account, it is the second-oldest pharmacy in Germany and is still in family hands [11]. The founders were pharmacists who began by growing medicinal plants such as rhubarb, hawthorn and chamomile.

The active ingredient itself has a longer and broader history than the brand. Methenamine is best known as an oral drug used to prevent recurring urinary tract infections; its use on the skin against heavy sweating is a separate application. According to Wikipedia's article on the compound, the topical form for this purpose was introduced around 1965 [8]. That date describes the treatment in general, not Antihydral specifically.

Because Antihydral's own timeline is not public, its story runs alongside that of Robugen. In 1950 the Mauz family built the company's first building on Alleenstraße in Esslingen, which is still its address today. From 1960 the company widened its range, with products such as Korodin heart and circulation drops and Kamillin Extern Robugen becoming its best-known names.

A generational change followed in 1992, when Jörg Mauz junior and Dr. Matthias Mauz took over management. In 1999 the company developed the active ingredient ethyldeoxyuridine for herpes simplex infections of the eye, sold internationally as Edurid eye gel. Robugen describes itself today as run by the third generation of the family.

For Antihydral itself, the firmest dated reference points are external. A climbing blog wrote about the ointment in 2011, and a climbing magazine published a first-person review in 2015. The ointment's official package leaflet was last revised in August 2024.

Antihydral is owned and manufactured by Robugen. The brand's website carries the copyright line "Robugen GmbH Pharmazeutische Fabrik", the same name that appears on the ointment's package leaflet as manufacturer. The legal notice on the same website names the company in its formal legal form, ROBUGEN GmbH & Co. KG, with März Verwaltungs GmbH as the general partner [4]. Both names refer to the same company: one is the trading name, the other the registered legal entity.

Robugen's managing directors are Dr. Matthias Mauz and Stefan Eberspächer. The company is modest in size. In 2014 it employed 60 people, seven of them in research, and had annual sales of around 10 million euros, more than three quarters of which came from its Korodin products [11]. At that time its portfolio covered roughly 30 products, most of them plant-based.

Antihydral shares its owner with a group of German pharmacy brands. Robugen's company site lists Hamasana witch-hazel ointment, Korodin heart and circulation drops, Kamillin Extern Robugen, Larylin cough pastilles, Ilio Funkton chewable tablets, Tumarol N balm, Virudermin gel and Jod Wundsalbe Robugen alongside it. Robugen states that development, production and batch release all take place at its Esslingen site.

Antihydral presents itself, in its own tagline, as effective against heavy sweating. The brand speaks mainly to people with hyperhidrosis, a condition in which the body sweats far more than it needs to for cooling, often on the palms, soles and underarms.

Rather than lifestyle imagery, the brand leans on medical and manufacturing credentials. Its website describes its maker as a GMP-certified German pharmaceutical company, meaning one that follows the formal good-manufacturing standards for medicines. It also cites "100 years" of experience with medicines and three generations of family ownership. Robugen was founded in 1927, so the hundred-year figure is a rounded one.

The website also points to two pieces of medical literature. It states that topical treatment of this kind is listed in the German S1 clinical guideline on primary hyperhidrosis, and it cites a 1995 study in an Indian dermatology journal that compared topical methenamine with two other treatments for sweaty palms and soles [1]. The brand uses these references to support its claims of effective, quick application.

Alongside the products, Antihydral runs an online magazine. Its articles fall into two groups. One covers hyperhidrosis directly: causes, treatments, Botox, the psychological strain of heavy sweating and sweaty hands in children. The other, labelled lifestyle, deals with everyday situations where damp hands get in the way, such as gaming, driving, dating, work, sport and climbing. In one article, the brand lists Antihydral ointment among the non-prescription options for hyperhidrosis while noting that treatment choices should be made with a doctor.

The range has three products, each in a different regulatory category.

Antihydral ointment (Antihydral Salbe) is the brand's main product and the only one that is a licensed medicine. Each gram contains 130 mg of methenamine, which the brand describes as highly concentrated. It is approved for use on the skin in cases of heavy sweating, especially of the hands, feet and underarms. In Germany it is sold only in pharmacies but does not require a prescription [12]. Besides the active ingredient, the ointment contains talc, purified water, zinc oxide, white clay, glycerol, carmellose sodium and eucalyptus oil.

How the ointment works is described in outside sources rather than on the brand's own pages. The skin's surface is slightly acidic, and in that environment methenamine can release formaldehyde [8]. In the 2015 climbing review, a pharmacist and climber explained that this plugs the openings of the sweat glands, and that the resulting gel-like plugs can last several days after use [10]. Wikipedia lists dry skin among the side effects of the topical form.

Wikipedia lists Antihydral among the trade names for methenamine, and notes that the topical form for sweating has been marketed only in certain countries.

Antihydral Spray is an everyday antiperspirant. The brand describes it as a gentle formulation and stresses that it contains no aluminium salts.

Antihydral Foot Care Cream (Fusspflege Creme) is sold as a cosmetic rather than a medicine. According to the company, it is meant to care for and regenerate the skin of the feet after antiperspirant treatment.

No awards are documented for the brand. Its most visible outside coverage comes not from beauty media but from rock climbing, where sweaty fingertips can mean losing grip on small holds.

In July 2011 the climbing writer Andrew Bisharat published "Antihydral: A Skin Drying Agent for Climbers" on his blog Evening Sends [9]. He described it as a strong skin-drying agent from Germany and reported praise from well-known climbers: Daniel Woods called it "the secret to success", and Sam Elias also spoke highly of it. Bisharat wrote that he had bought his tube from a foosball website, the only online seller he could find in the United States. His advice was to apply a very small amount at bedtime and wash off the white residue the next morning. He also warned against using it with a formaldehyde allergy and said overuse could leave skin glassy and fingers deeply split.

In April 2015 Squamish Climbing Magazine published Luke Zimmerman's first-person review, "Antihydral: Skin Doping for Climbers" [10]. Zimmerman called it "a magic cream from Germany" that dries the skin and builds a thick callus, and he too had bought it from a German foosball website. He credited it with better grip on hard routes, but also described the downsides: skin that became too dry and thick, split fingertips, constant sanding, and a growing dependence on the cream.

Neither article is connected to the brand, and both are personal accounts rather than medical assessments. The brand's own magazine has since published a piece on damp hands while climbing.

Antihydral is active. As of 2026, its website is live, shows a current copyright notice from Robugen, offers German and English versions, and presents the three-product range together with its magazine. The ointment's package leaflet was last revised in August 2024.

The brand's distribution centres on Germany, where the ointment holds its licence as a pharmacy-only medicine. It is sold mainly through pharmacies, both in shops and online, and also through Amazon; the website includes a pharmacy finder and notes that it may earn a commission on purchases made through its links. The climbing articles show that the ointment has long reached buyers in other countries through informal channels rather than official distribution.