Medical lubricant supply is an oily or slippery substance used for lubrication. An understanding of how lubricating systems work is crucial to the selection of a medical lubricant supply for a particular application. Medical lubricant supply provides a protective film that separates the two rubbing surfaces and reduces the level of friction in the two rubbing surfaces.

Any surface contains irregularities, even when polished to a mirror finish. These irregularities may not be visible, except under a microscope. When two highly polished surfaces are brought gently together, only some points on the surfaces will make contact. These contacts will be brought closer together when a force is applied at right angles to the surfaces (this force is referred to as a ‘normal load’), and the number of contact points will increase.

A sexual lubricant (or masturbation medical lubricant supply ) is a medical lubricant supply used to increase pleasure or reduce pain during sexual activity. The major mineral oil components are paraffinic, naphthenic, and a smaller amount of aromatic compounds. Paraffinic oils are straight chain or branched aliphatic hydrocarbons, in other words: alkanes and their isomers. Naphthenic oils have saturated hydrocarbons (alkanes) that have at least one closed ring of carbon atoms. Aromatic compounds have one or more benzene rings in each molecule.

Chemicals called oxidation inhibitors are added to the base oils to prevent the deterioration of the oil and the corrosion of metal parts. Similar chemicals called rust inhibitors are added to protect steel parts. Dispersants and detergents are added to help dissolve contaminants and sludge so that deposits are not formed. Other chemicals, such as anti-wear and anti-scuff additives that are sometimes added to base oils react with the metal atoms on the surfaces to form a protective layer that has a lower friction than that of the metals rubbing against each other.

The variations in composition directly affect the lubricating properties of the blended mixture. Other chemicals are added to the base oil to improve the properties of the oil. Mineral oils react with oxygen at hot temperatures to form hyperoxides, followed by organic acids, which cause the formation of sludge and varnish and the corrosion of metal parts.

But not all medical lubricant supply are compatible with latex condoms. Oil-based medical lubricant supply should never be used with latex condoms, since they may reduce the effectiveness of latex condoms as a contraceptive and protection against disease like acquired immunity deficiency syndrome. Water-based medical lubricant supply may be used with latex condoms, but oil-based medical lubricant supply s must be avoided since they weaken the latex. Polyurethane is a non-latex alternative for condoms. If the woman's vagina is at all dry, water-based medical lubricant supply should be used to reduce the abrasion on the condom. Water-based medical lubricant supply is, however, incompatible with underwater sex as they can be dissolved or dispersed in water.

Silicone-based sexual medical lubricant supply is incompatible with, and may cause damage to, silicone-based sex toys. Medical lubricant supply intended for sexual purposes include: vaginal medical lubricant supply , water-based medical lubricant supply s, and silicone based. Other substances improvised as sexual medical lubricant supply these are: moisturizing body lotion, saliva, cooking oils, fruit pulp and other foods. Although, sexual medical lubricant supply is safer than this improvised medical lubricant supply, this can still be enough.