Bioloire

Bioloire is a German haircare brand built around a single idea: a lotion meant to bring colour back to grey hair gradually, without a conventional dye. Its main product, BIOLOIRE H4 Haarlotion, comes in a men's and a women's version and is made by Loire Kosmetik GmbH, a small cosmetics company based in Finning, Bavaria [3].

The brand sits in the pharmacy segment. It sells through its own online shop and through pharmacies, and its website even offers a printable order form that customers can hand in at a local pharmacy. The company presents the lotion as a long-established formula rather than a new invention, and it remains on sale today, although the brand shows little public activity beyond its shop and pharmacy listings.

Bioloire does not publish a founding year or name its founders. The clearest hint at its age comes from the company itself: the product page for the men's lotion calls it "the original" and describes the formula as proven over decades [4]. No date is attached to that claim.

What is documented is the company behind the brand. Loire Kosmetik GmbH is registered at the district court of Augsburg and gives its address as Lerchenberg 24 in Finning, a village in Upper Bavaria. Its registered business purpose is the manufacture of cosmetic articles of all kinds [8]. The legal notice on the brand's website names a managing representative but does not describe how or when the business started.

Bioloire is owned and produced by Loire Kosmetik GmbH, the brand's own operating company rather than part of a larger beauty group. No acquisitions or changes of ownership are documented.

The company's name appears in two slightly different spellings. The brand's website writes it as "Loire Kosmetik GmbH" in its legal notice and footer [3], while the commercial register, as shown by the company-data service North Data, lists it as "Loire-Kosmetik GmbH", with a hyphen [8]. Both carry the same register number, so they refer to the same company.

Bioloire is a single-purpose brand. Everything it sells is aimed at grey hair, and its tagline, "Die Formel gegen graues Haar!" ("The formula against grey hair!"), says as much. The company describes H4 as a colourless lotion, technically a suspension, that works step by step over a few weeks rather than in one sitting.

The pitch rests on convenience and on avoiding the routine of regular colouring. According to Bioloire, the lotion is applied like a hair tonic: no mixing, no gloves and no long processing time. The brand lists a set of selling points on its homepage, among them "no more tiresome dyeing", no visible grey regrowth at the roots, suitability for every hair type and colour, and a natural look. It also states that the lotion contains no aggressive chemicals that could damage the hair, and that all its active ingredients are permitted under European cosmetics rules.

Users can also choose how far to go. The company says that the number of applications controls how much colour returns, and that areas meant to stay grey, such as the temples, can simply be left untreated.

### BIOLOIRE H4 Haarlotion

The range consists of two versions of the same lotion. BIOLOIRE H4 Haarlotion für Herren is the men's version, which the company says has a pleasantly dry, masculine scent. BIOLOIRE H4 Haarlotion für Damen is the women's version, sold by some retailers as "Bioloire H4 Lady Haarlotion".

### How the company says it works

Bioloire explains the product with a short account of why hair turns grey. Hair colour comes from pigments called melanins, and hair greys as their share falls. According to the company, H4 works with the natural components of the hair at the places where melanin was once active, and forms new, melanin-like pigments, so that the greying process is "simply reversed" [1]. The colour is said to build up with each use, moving from a blond phase towards darker shades. The brand does not publish a full ingredient list, and it does not name the substance responsible for the colour change.

The care ingredients it does name are pro-vitamin B5, which the company says strengthens brittle and damaged hair, and elemental sulphur, which it says is taken up into the hair's keratin. A longer product description carried by an online pharmacy also names esculin, an extract from horse-chestnut bark, described there as toning the scalp [7].

### Use and timing

The routine is daily at first. The lotion is shaken, dabbed onto the grey areas of dry or towel-dried hair, massaged in with the fingertips and combed through. It is not rinsed out. The company promises visible results after two to three weeks of daily use, and full colour from root to tip in roughly three to five weeks depending on hair structure. After that, it says, one or two applications a week are enough to keep the shade.

The brand's own guidance contains a number of cautions. It advises removing rings and jewellery before use to prevent tarnishing, and washing hands afterwards so the fingernails do not discolour. Damp hair can leave marks on clothing or bedding. Strong or medicated shampoos, hairsprays and oils may slow the effect, while sunlight can strengthen it. Perms are a particular issue: the company warns that a hydrogen-peroxide perm fixer will bleach out the newly gained colour and recommends bromate-based fixers instead [2].

The company is also open about the limits. Its instructions page says that in rare cases the colour does not develop or is not fully satisfactory, and that once treatment stops, the pigments fade gradually until the hair returns to its earlier grey [2].

On timing after other colour treatments, the brand's pages disagree with one another. The dedicated instructions page says H4 should be used no earlier than three weeks after dyeing and two weeks after a tint [2], while the homepage gives one week after the last tint [1].

### Testing

Bioloire highlights a dermatological test by the testing institute Dermatest. According to the company, the lotion was examined under specialist medical supervision and received the rating "sehr gut" ("very good"), and a patch test carried out to international guidelines showed no allergic or irritant reactions [1]. On that basis the brand describes the lotion as clinically and dermatologically tested. No independent certifications are documented.

Bioloire is active in the sense of being continuously sold rather than newly developed. As of October 2026, the women's lotion was listed as in stock at the German online pharmacy APONEO, which names Loire Kosmetik GmbH as the maker [6], and the brand's own webshop was trading with current prices.

Beyond that, visible activity is limited. The brand's current website and shop were set up in 2018 [5], the site has seen few changes since, and no new product launches, press coverage or social media accounts are documented. All known sales channels are in Germany.