What do formic acid, viper venom extract and mumio each contribute to this gel?

The three actives play different roles in the formula:

• Formic acid is the main driver of the warming effect. It has a long tradition in warming rubs and works as a gentle counter-irritant on the skin surface — it stimulates skin receptors and produces a sensation of heat, which makes massaging stiff muscle and joint zones feel more comfortable.
• Gyurza viper venom extract is included in very small cosmetic amounts. It is not used here as a drug ingredient; its role is to complement the warming, stimulating character of the gel.
• Mumio (shilajit) is a mineral-organic substance traditionally valued in mountain regions such as the Altai and Caucasus. In topical products it is appreciated for its rich complex of organic compounds and trace minerals, which rounds out the composition alongside the two stimulating components.

The gel-balsam base matters as well: it lets the blend spread evenly, absorb without a greasy residue and stay in close contact with the skin during massage — which is why some people prefer this format over thicker ointments.

It is worth understanding the framing correctly: these ingredients are used in a cosmetic context. The product works on the skin's surface to create a warming, massage-friendly experience; it does not treat joints, the spine or any medical condition.