So what is a natural naphtalan?

So what is a natural naphtalan? It is a thick black-brown or brown liquid with a specific smell, which in its appearance is not very different to other types of earth oils.

Naphtalan has a complicated chemical constitution. It contains:

  • Cyclic saturated naphtenic hydrocarbons, which are highly different from other earth oils’ naphtenic hydrocarbons and contain cyclopentaneperhydrophenantrenes chain, which is also present in cholesterol, choleic acids, reproductive hormones, vitamin D and other biologically active substances;
  • Aromatic hydrocarbons, including benzol compounds.

The difference between naphtalan and a regular industrial oil is that naphtalan contains almost no light distillates, the percentage of which in other types of earth oils is close to 50%. Naphtalan aromatic hydrocarbons don’t differ from those in other earth oils, however the naphtenic hydrocarbons are quiet different.

Besides, naphtalan contains basic nitrogen, naphthenic acids, coloring agents, sulfur compounds, microelements (zinc, boron, manganese, iodide, bromine, lithium, cobalt, cooper, rubidium, molibdenum, etc.), resins and mineral oils.

Resin-free naphtalan

Resin-free naptalan is received from original naphtalan earth oil by means of vacuum distillation and hydrocracking.

The substance is a thick, syrup-like fluid of white color, with a weak scent, mixes well with oils and fats, contains polycyclic naphtenic hydrocarbons (no less than 98%), isoparaffins (2%).

The polycyclic naphtenic hydrocarbons in resin-free naphtalan are similar in its chemical structure to reproductive hormones. It provides densensitise, anti-inflammatory, anesthetic, spasmolytic, resolving, antipruritic and antibacterial properties of naphtalan.

A diverse specter of naphtalan biological activity defines the wide opportunities for its application in a clinical practice: rheumatology, neurology, surgery, stomatology and, of course, dermatology.

Mechanism of naphtalan healing effect:

  • Reflex action on neurohumoral and hormonal regulation (chemical factor)

The influence of the chemical factor is performed by naphtenic hydrocarbons in the composition of naphtalan, which are able to enforce the natural biosynthesis of steroid hormones, decelerate synthesis and inactivate the action of inflammation mediators. These very effects are the foundation of naphtalan’s anti-inflammatory action.

Besides, the naphtenic hydrocarbons smooth muscle tonus, widen blood vessels, improve blood rheological properties, lipid peroxidation processes, normalize blood coagulative properties, has immunocorrecting effect, and, as a result, provides anti-inflammatory effect and is a good antisensitizer.


Naphtalan analgesic action happens due to suppression of inflammatory process, nerve ending hyposelaphesia, increase of skin threshold sensitivity and the influence on serotin energy mechanism of antinociceptive system.

  • Local warming effect on the affected area (warming factor)

The warming factor on the affected area stimulates local processes of microcirculation, improves lymphatic drainage, activates the metabolism and diffusion processes, and by doing so promotes creation of a new level of tissue trophism, restoration of local homeostasis, damaged during the sickness.

Resin-free naphtalan has a 100% bioaccessibility. It has a self-warming quality, high viscosity and lubricity. Due to that, it is easily absorbed by skin, leaving it smooth and elastic, without any irritating effects.

Resin-free naphtalan, compared to its original earth oil predecessor, and has a wide specter of “attractive” properties:

  • It is a low-toxic substance
  • 6 time more effective compared to the original naphtalan
  • Better acceptability, esthetic qualities
  • Highly effective for skin diseases, burns, frostbites, distal vessels and nerve system diseases.
  • Wider usage opportunities among children and geriatric public.

Compared to the original naphtalan, resin-free naphtalan does not leave marks on clothing, does not request showering after the treatment, and practically does not have any scent.

Developed within the recent years skin disease medications for external use, based on naphtalan will take a proud place and will help to solve a problem of chronic dermatosis after a treatment of exacerbation by topical corticosteroids.

Contains naphtalan

Losterin line

CreamShampooShower gelFoot creamZinc-naphthalan paste

A line of specialized medications Losterin developed by dermatologists for daily skin care in a complex therapy for chronic diseases (psoriasis, eczema, neurodermatitis, atopic eczema). Medications of the Losterin line contain a balanced combination of active substances.

Learn more about all the components

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EAES N RU D-RU.АI82.В.03367/20 dated 05.08.2020, EAES N RU D-RU.АI82.В.03365/20 dated 05.08.2020, EAES N RU D-RU.АI82.В.03366/20 dated 05.08.2020, № RU. dated 16.03.2020, EAES N RU D-RU.АI82.В.03628/20 dated 06.10.2020

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